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Debnath, Sampriti, Nitish Mondal, and Jaydip Sen. "Use of upper arm anthropometry, upper arm muscle area-by-height (UAMAH) and midupper- arm-circumference (MUAC)-for-height as indicators of body composition and nutritional status among children." Anthropological Review 80, no. 1 (March 1, 2017): 85–102. http://dx.doi.org/10.1515/anre-2017-0004.
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AbstractUpper arm anthropometry has a potential role to provide useful estimations of body composition and nutritional status. Aims of the present cross-sectional study were to assess body composition and nutritional status of rural school-going children using upper arm anthropometric measures such as upper arm muscle area-by-height (UAMAH) and mid-upper arm circumference (MUAC) for-height. The present cross-sectional study was conducted among 1281 children of West Bengal, India (boys 619, girls 662) aged 5-12 years and selected using a stratified random sampling method. Anthropometric measurements of height, weight, MUAC and triceps skinfold (TSF) were recorded. Body composition and nutritional status were assessed using upper arm muscle area (UMA), upper arm fat area (UFA), UAMAH and MUAC-forheight. Age-sex-specific overall adiposity in TSF, UFA, arm fat index and upper-arm fat area estimates were higher among girls than boys (p<0.01), but UMA and upper-arm muscle area estimates were observed to be higher among boys than girls (p<0.05). High prevalence of undernutrition was found among both boys (53.15%) and girls (41.69%) using UAMAH (p<0.01). The overall prevalence of low MUAC-forheight was higher among boys (28.59%) than girls (25.68%) (p>0.05). Upper arm anthropometric measures, UAMAH and MUAC-for-height are useful for assessment of body composition and nutritional status among children.
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Pieterse, Simone, Mary Manandhar, and Suraiya Ismail. "The nutritional status of older Rwandan refugees." Public Health Nutrition 1, no. 4 (December 1998): 259–64. http://dx.doi.org/10.1079/phn19980042.
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AbstractObjective:To assess the nutritional status of older people in an unstable situation.Design:Anthropometric and socioeconomic data were collected cross-sectionally. Body mass index (BMI), arm muscle area (AMA) and arm fat area (AFA) were calculated to evaluate nutritional status. For 41 subjects with kyphosis, height was estimated from arm span using sex-specific regression equations from the non-kyphotic group.Setting:The study was carried out in the post-emergency phase in a Rwandan refugee camp in Karagwe district, north-west Tanzania.Subjects:Measurements were obtained from 413 men and 415 women aged 50–92 years.Results:The prevalence of undernutrition (BMI < 18.5) was 19.5% in men and 13.1% in women and was higher above age 60 years in both sexes: in men the prevalences were 23.2% and 15.0% (P < 0.05) and in women 15.1% and 10.9% for the older and younger age groups respectively. AMA, which is important in relation to the ability to remain active and independent, was also significantly lower in older age groups. No difference was found in AFA. The proportion with low BMI was much higher in the group with kyphosis.Conclusions:Even in this population of older Rwandans who managed to reach the camp and survive in exile for more than a year, undernutrition does occur and is more prevalent at an advanced age. The higher prevalence of undernutrition in kyphotic people illustrates the importance of including this group in nutritional status assessments.
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Corish, Clare A., and Nicholas P. Kennedy. "Anthropometric measurements from a cross-sectional survey of Irish free-living elderly subjects with smoothed centile curves." British Journal of Nutrition 89, no. 1 (January 2003): 137–45. http://dx.doi.org/10.1079/bjn2002748.
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Anthropometric screening has been recommended for the detection of undernutrition as it is simple, inexpensive and non-invasive. However, a recent study estimating the prevalence of undernutrition on admission to hospital in Dublin, Republic of Ireland, highlighted that the anthropometric reference data currently available in the UK and Republic of Ireland are inadequate to accurately determine nutritional status. In order to provide current anthropometric data, we carried out a cross-sectional study of 874 free-living, apparently healthy Irish-born elderly individuals aged over 65 years. Height, weight, triceps skinfold thickness, mid-arm and calf circumference were measured, values for BMI, mid-arm muscle circumference and arm muscle area were calculated and smoothed centile data derived for each variable. One-third of these elderly individuals had a BMI between 20–25 k/2, approximately two-thirds (68·5 % of males and 61 % of females) were classified as overweight or obese, almost one-fifth having a BMI over 30 k/2(17 % of men and 20 % of women). Very few were underweight, only 3 % having a BMI below 20 k/2. Height, weight, BMI and muscle reserves decreased with increasing age. The reduction in muscle size was associated with lower handgrip strength. Fat reserves declined with age in females only. Just over half of elderly Irish women reported participating in active leisure of 20 min duration four or more time/eek, although 13 % reported having no involvement in active leisure. These data for the Irish elderly extend the data generated from a recent countrywide survey of Irish adults aged 18–64 years, thus providing suitable reference standards for nutritional assessment of elderly Irish individuals.
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PrayGod, George, Nyagosya Range, Daniel Faurholt-Jepsen, Kidola Jeremiah, Maria Faurholt-Jepsen, Martine G. Aabye, Lotte Jensen, et al. "The effect of energy–protein supplementation on weight, body composition and handgrip strength among pulmonary tuberculosis HIV-co-infected patients: randomised controlled trial in Mwanza, Tanzania." British Journal of Nutrition 107, no. 2 (July 6, 2011): 263–71. http://dx.doi.org/10.1017/s0007114511002832.
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Undernutrition is common among smear-positive pulmonary tuberculosis (PTB+) patients. Micronutrient supplementation may improve treatment outcomes, but it is unclear whether additional energy–protein would be beneficial. The present study aimed to assess the effect of energy–protein supplementation on weight, body composition and handgrip strength against a background of high micronutrient intake during tuberculosis (TB) treatment. A total of 377 PTB+ patients co-infected with HIV were randomly allocated one or six biscuits daily for 60 d during TB treatment. Weight, arm fat area, arm muscle area and handgrip strength were assessed at baseline and 2 and 5 months. There were no effects on any outcome at 2 months, but energy–protein supplementation was associated with a 1·3 (95 % CI − 0·1, 2·8) kg marginally significant gain in handgrip strength at 5 months. However, after 2 months, energy–protein supplementation led to a weight gain of 1·9 (95 % CI 0·1, 3·7) kg among patients with cluster of differentiation 4 (CD4) counts ≥ 350 cells/μl, but not among patients with low CD4 counts ( − 0·2 kg; 95 % CI − 1·3, 0·8, Pinteraction = 0·03). Similarly, at 5 months, energy–protein supplementation led to a 2·3 (95 % CI 0·6, 4·1) kg higher handgrip strength gain among patients with CD4 counts < 350 cells/μl, but not in those with high CD4 counts (Pinteraction = 0·04). In conclusion, energy–protein supplementation to PTB+ HIV-co-infected patients had no overall effects on weight and body composition, but was associated with marginally significant gain in handgrip strength. More research is needed to develop an effective supplement, before it is recommended to TB programmes.
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Rah, Jee H., Parul Christian, Abu Ahmed Shamim, Ummeh T. Arju, Alain B. Labrique, and Mahbubur Rashid. "Predictors of stunting and thinness in post-menarcheal adolescent girls in rural Bangladesh." Public Health Nutrition 12, no. 12 (April 6, 2009): 2400–2409. http://dx.doi.org/10.1017/s1368980009005345.
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AbstractObjectiveTo assess the nutritional status and risk factors of undernutrition in post-menarcheal girls in rural northern Bangladesh.DesignCross-sectional data on anthropometric measurements, dietary intake, work activity, morbidity and socio-economic status were collected from 12- to 19-year-old primigravidae (n 209) and never-pregnant adolescents (n 456) matched on age and time since menarche. Multiple regression analyses were conducted to determine predictors of stunting, thinness, upper-arm muscle (UAMZ) and fat area Z-scores (UAFZ) among the adolescent girls.ResultsA large proportion of adolescents (49 %) were stunted (height-for-age Z-score <−2) and underweight (40 %; weight-for-age Z-score <−2), but not thin (BMI-for-age <5th percentile; ∼10 %). The mean (sd) UAMZ and UAFZ of the adolescent girls was −0·3 (0·64) and −0·9 (0·40), respectively. Lean mass increased whereas fat mass declined with age. Both stunting and thinness were positively associated with age and time since menarche (P < 0·05). Young age (12–14 years) and literacy were protective against stunting among pregnant adolescents (OR = 0·29, 95 % CI 0·09, 0·88 and OR = 0·50, 95 % CI 0·26, 0·96, respectively). Having symptoms of diarrhoea or dysentery (OR = 7·40, 95 % CI 1·43, 38·29) predicted thinness and was associated with lower UAMZ and UAFZ among never-pregnant girls (both P < 0·05). Performing light-to-moderate activities was protective against thinness among never-pregnant girls (OR = 0·43, 95 % CI 0·22, 0·82), whereas pregnant adolescents who performed high levels of strenuous activities had greater UAMZ (P < 0·05).ConclusionUndernutrition was widespread among this post-menarcheal adolescent population. Younger and literate adolescents were less likely to be stunted, whereas thinness and body composition were associated with morbidity and work activity.
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Böhm, D., K. Wünsch, M. Baum, and M. Odaischi. "The Ultrasonic Measurement of Upper Arm Muscle and Fat Area." Transfusion Medicine and Hemotherapy 17, no. 3 (1990): 54–55. http://dx.doi.org/10.1159/000222554.
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Woo, Jean, S. C. Ho, S. P. B. Donnan, and R. Swaminathan. "Nutritional status of healthy, active, Chinese elderly." British Journal of Nutrition 60, no. 1 (July 1988): 21–28. http://dx.doi.org/10.1079/bjn19880072.
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1. Anthropometric indices are presented for 402 healthy Chinese elderly subjects leading an active life in the community in Hong Kong.2. Women had higher body-mass index (weight/height2) and body fat, while fat-free mass, arm-muscle circumference and corrected arm-muscle area were higher in men. Body-mass index, fat-free mass, arm-muscle circumference and corrected arm-muscle area did not decline with age. Total body fat was lower in women aged 75 years and above compared with those aged 60–64 years.3. All values were lower than those for elderly Caucasians. A different criteria for severe wasting malnutrition among elderly Chinese should be established.
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Yavuz, Cansev Meşe, and Başak Koca Özer. "Evaluation of upper arm muscle and fat area of children and adolescents from Ankara, Turkey." Anthropological Review 83, no. 2 (June 1, 2020): 197–208. http://dx.doi.org/10.2478/anre-2020-0014.
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AbstractArm anthropometry is a commonly used method for determining the nutritional status of children and adolescents. The purpose of the study is to evaluate the arm anthropometry of 1484 children and adolescents (760 boys and 724 girls) aged between 6–17 years. The sample groups are selected who are living in Ankara to establish local reference values. In order to determine upper Arm Muscle Area (AMA) and upper Arm Fat Area (AFA), height, weight, upper arm circumference and triceps skinfold thickness measurements were taken in accordance with International Biological Program (IBP) protocols. Smoothed percentiles of AMA and AFA were obtained. Body mass index was calculated with weight and height measurements (kg/m2). Fat mass (FM) and fat free mass (FFM) were measured using bio-impedance analyzer. According to the obtained results, arm muscle area values were higher in boys and arm fat area was higher in girls. In addition, sex difference in these variables increased with age. There was a high positive correlation between body mass index (BMI) and AMA, AFA. It has been found that there is a difference in AMA and AFA values for Ankara children compared to previous studies in Turkey.
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Addo, O. Yaw, John H. Himes, and Babette S. Zemel. "Reference ranges for midupper arm circumference, upper arm muscle area, and upper arm fat area in US children and adolescents aged 1–20 y." American Journal of Clinical Nutrition 105, no. 1 (November 2, 2016): 111–20. http://dx.doi.org/10.3945/ajcn.116.142190.
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Machado, Thais Costa, Viviane G. Nascimento, Janaína P. C. da Silva, Ciro João Bertoli, and Claudio Leone. "Body composition of preschool children and relation to birth weight." Revista da Associação Médica Brasileira 60, no. 2 (2014): 139–44. http://dx.doi.org/10.1590/1806-9282.60.02.011.
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Objective: to evaluate the relationship between body composition of preschool children suffering from excess weight and birth weight (BW). Methods: probabilistic sample, by conglomerates, with 17 daycare centers (of a total of 59) composing a final sample of 479 children. We used Z-score of Body Mass Index (zBMI) ≥ +1 and ≥ +2, respectively, to identify preschool children with risk of overweight and excess weight (overweight or obesity). The arm muscle area (AMA) and the arm fat area (AFA) were estimated from measurements of arm circumference, triceps skin fold thickness. Results: the prevalence of risk of overweight was 22.9% (n=110) and excess weight was 9.3% (n=44). The risk of overweight and excess weight in children did not show correlation between BW and AFA, but it did with adjusted arm muscle area (AMAa) (rp= 0.21; p= 0.0107). The analysis of the group with excess weight alone also showed a positive correlation between BW and AMAa (rp= 0.42; p= 0.0047). Conclusion: among overweight children, lower BW is associated with a lower arm muscle area in early preschool age, regardless of the fat arm area presented by them.
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Neumann, Charlotte G., Luohua Jiang, Robert E. Weiss, Monika Grillenberger, Constance A. Gewa, Jonathan H. Siekmann, Suzanne P. Murphy, and Nimrod O. Bwibo. "Meat supplementation increases arm muscle area in Kenyan schoolchildren." British Journal of Nutrition 109, no. 7 (August 2, 2012): 1230–40. http://dx.doi.org/10.1017/s0007114512003121.
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The present study examines the effect of animal-source-food (ASF) intake on arm muscle area growth as part of a larger study examining causal links between ASF intake, growth rate, physical activity, cognitive function and micronutrient status in Kenyan schoolchildren. This randomised, controlled feeding intervention study was designed with three isoenergetic feeding interventions of meat, milk, and plain traditional vegetable stew (githeri), and a control group receiving no snack. A total of twelve elementary schools were randomly assigned to interventions, with three schools per group, and two cohorts of 518 and 392 schoolchildren were enrolled 1 year apart. Children in each cohort were given feedings at school and studied for three school terms per year over 2 years, a total of 9 months per year: cohort I from 1998 to 2000 and cohort II from 1999 to 2001. Food intake was assessed by 24 h recall every 1–2 months and biochemical analysis for micronutrient status conducted annually (in cohort I only). Anthropometric measurements included height, weight, triceps skinfold (TSF) and mid-upper-arm circumference (MUAC). Mid-upper-arm muscle area (MAMA) and mid-upper-arm fat area (MAFA) were calculated. The two cohorts were combined for analyses. The meat group showed the steepest rates of gain in MUAC and MAMA over time, and the milk group showed the next largest significant MUAC and MAMA gain compared with the plain githeri and control groups (P< 0·05). The meat group showed the least increase in TSF and MAFA of all groups. These findings have implications for increasing micronutrient intake and lean body mass in primary schoolchildren consuming vegetarian diets.
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Moura, Tatiane, Manoel Costa, Saulo Oliveira, Marcos Barbosa Júnior, Raphael Ritti-Dias, and Marcos Santos. "Height and Body Composition Determine Arm Propulsive Force in Youth Swimmers Independent of a Maturation Stage." Journal of Human Kinetics 42, no. 1 (October 1, 2014): 277–84. http://dx.doi.org/10.2478/hukin-2014-0081.
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Abstract The aim of this study was to examine the relationship between anthropometric variables, body composition and propulsive force in swimmers aged 9-17 years. Anthropometric characteristics (body height and mass, sitting height, arm span, arm muscle area and body composition) and the propulsive force of the arm (tethered swimming test) were evaluated in 56 competitive male swimmers. Tanner’s stages of genital maturation (P1-5) were used. The data analysis included correlations and multiple linear regression. The propulsive force of the arm was correlated with body height (r = 0.34; p =0.013), arm span (r = 0.29; p =0.042), sitting height (r = 0.36; p =0.009), % body fat (r = 0.33; p =0.016), lean body mass (r = 0.34; p =0.015) and arm muscle area (r = 0.31; p =0.026). Using multiple linear regression models, the percent body fat and height were identified as significant predictors of the propulsive force of the arm after controlling for the maturation stage. This model explained 22% (R2 = 0.22) of associations. In conclusion, the propulsive force of swimmers was related to body height and percent body fat
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Żegleń, Magdalena, Łukasz Kryst, Parasmani Dasgupta, Rana Saha, Rituparna Das, and Sukanta Das. "Time trends in mid-upper-arm anthropometry from 1982 to 2011 in male children and adolescents from Kolkata, India." Journal of Biosocial Science 53, no. 1 (February 19, 2020): 71–81. http://dx.doi.org/10.1017/s0021932020000048.
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AbstractThe aim of this study was to investigate inter-generational changes in selected mid-upper-arm measurements of boys from Kolkata, India. The analysis was based on the anthropometric measurements of two cohorts of Bengali boys aged 7–16 from middle-class families, in 1982–83 and 2005–11. The two cohorts were compared in terms of their mid-upper-arm circumference (MUAC) and mid-upper-arm area (MUAA), mid-upper-arm muscle area (MUAMA), mid-upper-arm fat area (MUAFA) and Arm Fat Index (AFI). The significances of the differences were determined using two-way ANOVA. All features differed significantly between the examined cohorts and all showed a general positive secular trend. In most cases, the biggest differences were noted for 14- and 16-year olds and the smallest for the youngest boys. The contemporary boys seemed to have more favourable overall developmental conditions, probably related to socioeconomic progress in India over recent decades.
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Khanna, Archana, and Shyamal Koley. "Comparison of anthropometric profile and handgrip strength between inter-university volleyball players and a reference group." Biomedical Human Kinetics 12, no. 1 (January 1, 2020): 82–90. http://dx.doi.org/10.2478/bhk-2020-0011.
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SummaryStudy aim: In a volleyball game, multiple elements can influence competitive success, e.g. height, arm span and other anthropometric variables. The present cross-sectional study was undertaken to find out whether any differences exist between Indian inter-university male and female volleyball players as well as between players and a reference group in terms of anthropometry and handgrip strength.Materials and methods: The present cross-sectional research was conducted on 114 randomly selected Indian inter-university male (n = 50) and female (n = 64) volleyball players aged 18–25 years. An equal number of reference group individuals who did not participate in any exercise or training programme were also taken. Height, body weight, body mass index (BMI) (kg/m2), hand length, hand breadth, second digit length, fourth digit length, second and fourth digit ratio (2D/4D ratio), upper arm length, forearm length, total arm length, upper arm circumference, hip circumference; humerus and femur biepicondylar diameters, handgrip strength (dominant/non-dominant), arm muscle area, arm area, arm fat area, arm fat index, % body fat, and % lean body mass were measured with equipment including an anthropometer, sliding caliper, handgrip dynamometer and skinfold caliper using standard techniques. The data were analysed using SPSS version 17.0. Student’s t-test was applied for the comparison of data between players and the reference group. Differences between the groups were analysed using the oneway ANOVA test. Bonferroni post hoc test was applied after application of the ANOVA test. Effect size was also calculated. Statistical significance (p < 0.05) was indicated using a 5% level of probability.Results: Male volleyball players had higher mean values in height, body weight, hand length, hand breadth, second and fourth digit length, dominant and non-dominant handgrip strength, humerus and femur biepicondylar diameter, upper arm length, forearm length and total arm length, arm muscle area, arm area and percent lean body mass than the reference group. Similar findings were observed between female players and the reference group also. Statistically significant differences (p < 0.05–0.001) were also observed between male and female players except BMI, 2D/4D ratio, and arm fat area. These findings were supported by the effect size (η) calculations.Conclusion: Volleyball players had better height, weight, hand and arm anthropometrics, handgrip strength and % lean body mass as compared to the reference group. Significant differences were found in anthropometry and handgrip strength between players and reference group individuals, suggesting that these findings could be very useful for player selection and talent identification in sports.
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Arundito, Bagus Winandi, Madarina Julia, Neti Nurani, and Endy Paryanto Prawirohartono. "Upper arm fat and muscle in stunted and non-stunted children aged 0-24 months." Paediatrica Indonesiana 57, no. 5 (January 5, 2018): 252. http://dx.doi.org/10.14238/pi57.5.2017.1572.
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Background The prevalence of stunting in Indonesia is high, with particularly negative impacts on health during childhood as well as adolescence. Stunting impacts the health of children as well as adults, especially with regards to future obesity. Therefore, evaluating body composition of stunted children before 2 years of age is necessary.Objective To compare upper arm fat and muscle measurements in stunted and non-stunted children aged 0-24 months of age.Methods We analyzed secondary data of the Division of Nutrition and Metabolic Disease, Department of Child Health, Universitas Gadjah Mada Medical School, Yogyakarta which were collected using cluster random sampling from the Yogyakarta Special Province. We compared upper arm fat area (UFA), including the upper arm fat area estimate (UFE) and the upper arm fat percentage (UFP), as well as upper arm muscle area (UMA) and upper arm muscle area estimate (UME), among stunted and non-stunted children aged 0-24 months.Results We analyzed 2,195 children. The prevalence of stunting was 354/2,195 (16.1%). The UFA, UFE, and UFP among stunted children were significantly lower compared to non-stunted children aged 7-12 months [UFA: 4.48 vs. 5.05 cm2 (P <0.001), respectively; UFE: 4.88 vs. 5.55 cm2 (P <0.001), respectively; and UFP: 30.82 vs. 32.58% (P = 0.03), respectively]. The UMA in children aged 7-12 months was also significantly lower in stunted than in non-stunted children [11.31 vs. 11.79 cm2 (P = 0.02), respectively], as well as in children aged 13-24 months [11.05 vs. 11.75 cm2 (P <0.001), respectively]. In addition, the UME in children aged 13-24 months was significantly lower in stunted compared to non-stunted children [10.50 vs. 11.18 cm2 (P <0.001), respectively].Conclusion The UFA in children aged 7-12 months is smaller in stunted than in non-stunted children, whereas UMA in children aged 7-12 months and 13-24 months was smaller in stunted compared to non-stunted children.
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Arundito, Bagus Winandi, Madarina Julia, Neti Nurani, and Endy Paryanto Prawirohartono. "Upper arm fat and muscle in stunted and non-stunted children aged 0-24 months." Paediatrica Indonesiana 57, no. 5 (January 5, 2018): 252. http://dx.doi.org/10.14238/pi57.5.2017.252-61.
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Background The prevalence of stunting in Indonesia is high, with particularly negative impacts on health during childhood as well as adolescence. Stunting impacts the health of children as well as adults, especially with regards to future obesity. Therefore, evaluating body composition of stunted children before 2 years of age is necessary.Objective To compare upper arm fat and muscle measurements in stunted and non-stunted children aged 0-24 months of age.Methods We analyzed secondary data of the Division of Nutrition and Metabolic Disease, Department of Child Health, Universitas Gadjah Mada Medical School, Yogyakarta which were collected using cluster random sampling from the Yogyakarta Special Province. We compared upper arm fat area (UFA), including the upper arm fat area estimate (UFE) and the upper arm fat percentage (UFP), as well as upper arm muscle area (UMA) and upper arm muscle area estimate (UME), among stunted and non-stunted children aged 0-24 months.Results We analyzed 2,195 children. The prevalence of stunting was 354/2,195 (16.1%). The UFA, UFE, and UFP among stunted children were significantly lower compared to non-stunted children aged 7-12 months [UFA: 4.48 vs. 5.05 cm2 (P <0.001), respectively; UFE: 4.88 vs. 5.55 cm2 (P <0.001), respectively; and UFP: 30.82 vs. 32.58% (P = 0.03), respectively]. The UMA in children aged 7-12 months was also significantly lower in stunted than in non-stunted children [11.31 vs. 11.79 cm2 (P = 0.02), respectively], as well as in children aged 13-24 months [11.05 vs. 11.75 cm2 (P <0.001), respectively]. In addition, the UME in children aged 13-24 months was significantly lower in stunted compared to non-stunted children [10.50 vs. 11.18 cm2 (P <0.001), respectively].Conclusion The UFA in children aged 7-12 months is smaller in stunted than in non-stunted children, whereas UMA in children aged 7-12 months and 13-24 months was smaller in stunted compared to non-stunted children.
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Puskas, Valerija, Tatjana Pavlica, and Rada Rakic. "Sexual dimorphism in body composition of children in the North Backa region." Medical review 72, no. 7-8 (2019): 216–22. http://dx.doi.org/10.2298/mpns1908216p.
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Introduction. Anthropometric measurements are widely used in the assessment of growth, nutritional status and body composition in children. The objective of the study was to describe growth and body composition of children using simple anthropometric measures. Material and Methods. The investigation was performed in 13 primary schools in the territory of North Backa during 2017 and at the beginning of 2018. A total of 593 schoolchildren aged 6.50 - 10.49 years (in decimals) were included in the study. The following parameters were measured: height, weight, upper arm circumference and triceps skinfold thickness. These measurements were used to calculate the body mass index, total upper arm area, upper-arm muscle area, upper-arm fat area, and the arm fat mass percentage for each individual. Results. The study results show that children?s growth is almost linear over the first decade of life and the lean body mass increases at similar rates in boys and girls. However, girls show higher percentage of body fat and higher triceps skinfold thickness, while the body mass index is not significantly different. The secular trends in height are slowing down or have already ceased, but the weight generally continues increasing. Conclusion. Although sexual differences in anthropological measures are insignificant, the differences in body composition are evident before puberty.
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Acar, Sercan, and Başak Koca Özer. "THE SOMATOTYPE AND ANTHROPOMETRIC ASSESSMENT OF WRESTLERS FROM SİVAS, TURKEY." Journal of Kinesiology and Exercise Sciences 28, no. 83 (September 30, 2018): 55–62. http://dx.doi.org/10.5604/01.3001.0013.6291.
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Aim: The purpose of the present study is to assessment of the young wrestlers' somatotypes and anthropometric characters in Turkey according to the weight and age category. Basic Procedures: The study is carried out on a sample of 86 male wrestlers aged 10 to 21 years from Sivas. Various anthropometric measurements were performed (weight, height, sitting height, biceps and calf circumferences, humerus and femur width and triceps, subscapular, supraspinale and calf skinfolds thickness), anthropometric indices were calculated (upper arm muscle area, upper arm fat area, arm fat index, frame index and cormic index), and Heath-Carter somatotypes were determined. Results: The result of the present study showed that the junior wrestlers (weight=80kg) exhibited more endomorphy and mezomorphy than the schoolboys wrestlers (weight=51.12kg. The wrestlers' mean somatotypes are found to be 2.81 1.05 (endomorphy), 3.71 1.28 (mesomorphy) and 1.76 1.25 (ectomorphy). Conclusion: In conclusion, body structure and composition in the wrestlers were depended on their weight category. The junior wrestlers' characteristic type was endomorphic mesomorph, while the schoolboys wrestlers' type was mesomorph-endomorph. The wrestlers' endomorphy and indices of body composition can also be observed a considerable difference according to weight category. In addition, muscle area was found to be rising, however, fat area was decreasing.
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Chowdhury, Sutanu Dutta, and Tusharkanti Ghosh. "The upper arm muscle and fat area of Santal children: an evaluation of nutritional status." Acta Paediatrica 98, no. 1 (January 2009): 103–6. http://dx.doi.org/10.1111/j.1651-2227.2008.01072.x.
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Oliveira, Lúcia, Saulo Oliveira, Fernando Guimarães, and Manoel Costa. "Contributions of body fat, fat free mass and arm muscle area in athletic performance of wheelchair basketball players." Motricidade 13, no. 2 (November 8, 2017): 36. http://dx.doi.org/10.6063/motricidade.8549.
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The aims of this study were: to verify the relationship (1) and dependency (2) between body fat (BF), fat free mass (FFM) and the arm muscle area (AMA) with athletic performance of wheelchair basketball players. Twenty-two subjects were evaluated according to the following order, in 24-hour intervals: a) anthropometric measurements and the Wingate anaerobic test (day 1); b) assessment of VO2peak and threshold (2); and c) specific tests (3). The results showed satisfactory relationships of AMA with handgrip left (r=.36; p=.08), VO2peak (r=.59; p=.03), medicine ball throwing (r=.54; p=.00), absolute (r=.61; p=.00) and relative anaerobic power (r=.67; p=.00). BF with handgrip left (r= .43; p=.03), medicine ball throwing (r=.50; p=.01), absolute (r=.77; p=.00) and relative (r=.82; p=.00) anaerobic power. And FFM with handgrip (r=.44; p=.03), medicine ball throwing (r=.43; p=.03), absolute (r=.64; p=.00) and relative (r=.69; p= .00) anaerobic power. The regression analyses revealed that only predictive models by AMA presented good determination coefficients to VO2peak (r2=.35; p=.00), medicine ball throwing (r2=.29; p=.00), absolute (r2=.37; p=.00) and relative (r2=.46; p=.00) anaerobic Power. The results indicated the importance to consider some anthropometric measures, in particular muscular tissue, to sport training and athletic performance evaluation of wheelchair basketball players.
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SOUZA, MARCIO, ANN JANSEN, ALINE MARTINS, LUIZ RODRIGUES, and NILTON REZENDE. "Body composition in adults with neurofibromatosis type 1." Revista da Associação Médica Brasileira 62, no. 9 (December 2016): 831–36. http://dx.doi.org/10.1590/1806-9282.62.09.831.
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SUMMARY Objective To evaluate the body composition and nutritional status of neurofibromatosis type 1 (NF1) adult patients. Method A cross-sectional study of 60 NF1 patients (29 men, 31 women) aged ≥ 18 years who were evaluated from September 2012 to September 2013 in a Neurofibromatosis Outpatient Reference Center. Patients underwent nutritional assessment including measurements of weight, stature, waist circumference (WC), upper-arm circumference (UAC), and skinfolds (biceps, triceps, subscapular, suprailiac). Body mass index (BMI), upper-arm total area (UATA), upper-arm muscle area (UAMA), upper-arm fat area (UAFA), body fat percentage (BFP), fat mass, fat-free mass, fat mass index, and fat-free mass index were also calculated. Results The mean age of the study population was 34.48±10.33 years. The prevalence of short stature was 28.3%. Low weight was present in 10% of the sample and 31.7% of patients had a BMI ≥ 25 kg/m2. Reduced UAMA (<5th percentile) was present in 43.3% and no difference was found in UAFA between the sexes. The BFP was considered high in 30% and 17 (28.3%) patients had a WC above the World Health Organization cutoffs. Conclusion In this study, NF1 patients had a high prevalence of underweight, short stature, and reduced UAMA, with no difference between the sexes. Reduced UAMA was more prevalent in underweight patients; however, this was also observed in the normal and overweight patients. Further studies should investigate the distribution of body tissues in NF1 patients, including differences between men and women, and the influence of diet and nutrition on clinical features in NF1.
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İmamoğlu, Mehmet, and Serhat Özdenk. "The Effect of 12-Week Regular Pilates, Step and Zumba Training Program on Muscle and Fat Weight." Journal of Education and Training Studies 7, no. 11 (August 26, 2019): 33. http://dx.doi.org/10.11114/jets.v7i11.4421.
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This study aimed to investigate the effect of Pilates, Step and Zumba exercises on muscle and fat weight in arms, legs, core abdominal area, and total body.A total of 60 women aged 19 to 62 participated in the study. The mean age was 45±10 years, height was 160±5 cm and weight was 72.31±11.12 kg. Pilates, Step and Zumba exercise program was applied three days a week for a total of 12 weeks. Regional and total muscle and fat weights in the body were analyzed by TANITA MC780. Statistical significance level was determined as p<0.05. In the Pilates exercises group, there was a statistically significant difference between the pre-posttest muscle weights of the arms, core abdominal area and total body (p<0.05) except legs (p>0.05). There was no statistically significant difference between pre-posttest muscle weights in arms, legs, core abdominal area and total body in Step and Zumba exercises group (p>0.05). In Pilates and Step exercise groups, there is a statistically significant difference between pre-posttest fat weights in arms, legs, core abdominal area and total body (p<0.05) except Zumba groups (p>0.05). Pilates, Step and Zumba exercises groups were evaluated among themselves, there was no difference in terms of the arm, leg, core abdominal area, and total body muscle weights both in the pre-post tests (p>0.05). There was a statistically significant difference between all groups in terms of the arm, leg, core abdominal area and total body fat weights in both pre-posttests (p<0.05).Pilates and Step exercises can be recommended to women who want to reduce their weight on arms, legs, core abdominal area and total body fat lose weight.
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Sen, Jaydip, Nitish Mondal, and Partha Ghosh. "Upper Arm Composition as an Indicator of Body Composition and Nutritional Status of Adolescent Boys Aged 10-18 Years." Journal of Nepal Paediatric Society 35, no. 2 (January 20, 2016): 152–61. http://dx.doi.org/10.3126/jnps.v35i2.13250.
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Introduction: The upper arm composition is usually assessed based on total upper arm area (TUA), upper arm muscle area (UMA), upper arm fat area (UFA) and arm fat index (AFI). It is closely associated with assessment of body composition and nutritional status. The present study aims to determine the age specific variations in upper arm composition and its usefulness in the assessment of body composition and nutritional status among adolescent boys.Materials and Methods: The study was conducted among 964 boys (aged 10 – 18 years) and belonging to the indigenous Rajbanshi population of West Bengal, India. The boys were selected from five different sub-urban government secondary schools located under Siliguri subdivision of Darjeeling district, West Bengal, India. The anthropometric measurements of height, weight, MUAC and TSF were recorded and upper arm composition was estimated based on TUA, UMA, UFA and AFI using standard procedures. The overall body composition was evaluated using body mass index (BMI).Results: There appears to be existence of significant age-specific variations in BMI, UMA and UFA as the boys approached higher ages. The age specific means of TUA, UMA and UFA increased with age. The adolescent boys were observed to be well below the 50th percentiles of the reference population in BMI, TUA, UMA, UFA and AFI. Age and sex-specific smooth percentile curves were derived for height, weight, TSF, BMI, UMA and UFA using the L, M and S modelling approach for further evaluation of body composition.Conclusion: The present study recommends the assessment of body composition and nutritional status to improve screening of nutritional status using upper arm composition, especially in community settings so as to accurately identify the risk of lower or greater adiposity and muscularity, and thereby proposing a major opportunity to improve health through proper intervention programmes.J Nepal Paediatr Soc 2015;35(2):152-161
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Yaşar, Berkay, and Mehmet Sağır. "Assessment of anthropometric and body composition characteristics of elite Turkish wrestlers." Biomedical Human Kinetics 13, no. 1 (January 1, 2021): 221–30. http://dx.doi.org/10.2478/bhk-2021-0027.
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Abstract Study aim: The aim of the study was to determine the anthropometric characteristics of elite Turkish wrestlers according to their weight categories. Material and methods: In this study, 21 elite male wrestlers (age 22.9 ± 4.0) have been examined according to three weight categories: Light weight, middle weight, heavy weight. Height, weight, arm and calf girth, humerus and femur width, skinfolds (triceps, subscapular, calf, supraspinale) were measured. Arm anthropometry (upper arm muscle area, upper arm fat area, upper arm fat index), somatotype (Heath-Carter somatotype method), and body composition (bio-impedance analysis) were determined. Results: In the light weight wrestlers, body fat was 9.95% and somatotype 2.15–6.68–1.62; in the middle weight wrestlers, body fat was 11.79% and somatotype 2.83–6.83–1.01; in the heavy weight wrestlers, body fat was 18.63% and somatotype 4.10–8.13–0.53 was determined. While the endomorphy component of the light weight wrestlers was significantly lower than the middle weight and heavy weight wrestlers (p < 0.017), the ectomorphy component was significantly higher than the heavy weight wrestlers (p < 0.05). Fat free mass differed significantly between the three weight categories (p < 0.017), while body fat was higher in heavy weight than both light weight and middle weight (p < 0.017). The weight showed a significant and positive relationship with all anthropometric and body composition values except AFI and ectomorphy (p < 0.05 with mesomorphy, p < 0.01 with others). Conclusions: As a result of the study, it was determined that wrestlers have anthropometric characteristics specific to their weight categories. While the light weight wrestlers show a balanced mesomorph structure, the heavy weight wrestlers have adapted to the endomorphic mesomorph body type with the increase in fat and fat free mass.
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Campa, Francesco, Alessandro Piras, Milena Raffi, and Stefania Toselli. "Functional Movement Patterns and Body Composition of High-Level Volleyball, Soccer, and Rugby Players." Journal of Sport Rehabilitation 28, no. 7 (September 1, 2019): 740–45. http://dx.doi.org/10.1123/jsr.2018-0087.
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Context: Sports practice leads athletes to develop a specific body composition, coordination patterns, and basic motor skills based on the different tactical and physical needs. Objectives: To present and compare a wide range of functional movement patterns and body composition (BC) parameters of high-level male athletes playing different sports and to determine if there was a relationship between the parameters examined. Design: Cross-sectional study. Setting: Team facilities. Participants: A total of 30 volleyball, 25 soccer, and 30 rugby players (age = 25.9 [5.0] y and body mass index = 25.6 [4.1] kg/m2). Interventions: Functional movement patterns and anthropometric measurements were collected by a physician specifically trained. Main Outcome Measures: Body mass index, fat mass, fat-free mass, upper-arm muscle and fat area, calf muscle and fat area, thigh muscle and fat area, and functional movement screen (FMS) scores. In addition to considering the FMS total score, the authors separated the screen into 3 parts: FMSmove, FMSflex, and FMSstab. Results: The rugby players showed a higher number of asymmetrical and dysfunctional movements than the other athletes (P < .01), while the highest scores in FMSflex were obtained by the volleyball players (P < .01). In addition, most of the asymmetrical and painful movements in the athletes were measured on the shoulder mobility test. Muscle and fat areas differed significantly among the athletes (P < .05). Significant associations were found between movement patterns and several BC variables. In particular, large negative correlations were measured between percentage of fat mass (r = −.616; P < .01), upper-arm fat area (r = −.519; P < .01), and FMS total score. Conclusions: Functional movement patterns and BC differ in athletes according to the sport practiced. Furthermore, reaching an optimal BC is essential to achieve a satisfactory quality of movement.
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Hogan, S. Eileen. "Body Composition and Resting Energy Expenditure of Individuals With Duchenne and Becker Muscular Dystrophy." Canadian Journal of Dietetic Practice and Research 69, no. 4 (December 2008): 208–12. http://dx.doi.org/10.3148/69.4.2008.208.
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Purpose: The relationship between body composition and resting energy expenditure (REE) was investigated in two boys and two men with Duchenne muscular dystrophy (DMD) (ages 11 to 22.4 years) and two boys with Becker muscular dystrophy (BMD) (ages 7.75 and 13.75 years). Methods: The REE was assessed by indirect calorimetry; body composition indices (weight, height, skinfolds, and mid-arm circumference) were measured using standardized techniques and compared with healthy reference data. Results: Those with DMD had reduced corrected mid-upperarm muscle area (C-MUMA) in comparison with healthy peers, and approximately twice the subcutaneous fat levels of subjects with BMD and healthy peers. Boys with BMD had remarkably lower muscle status than did boys with DMD and healthy peers. In both groups, REE was lower than in healthy peers; REE was associated with body weight (r=0.85), height (r=0.92), mid-upper arm fat area (MUFA) (r=0.97), and C-MUMA (r=0.65). Conclusions: Individuals with muscular dystrophy (MD) exhibit considerable disease-specific alterations in body composition. The REE had a stronger relationship with growth (weight and height) and subcutaneous body fat composition and a weaker association with C-MUMA. Understanding the effect of MD on body composition and REE will allow dietitians to individualize energy recommendations.
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Gültekin, Timur, Başak Koca Özer, Kazumichi Katayama, and Galip Akın. "Age-related Patterns of Upper Arm Muscle and Fat Area in Turkish Children and Assessment of Nutritional Status." International Journal of Anthropology 21, no. 3-4 (July 31, 2007): 231–39. http://dx.doi.org/10.1007/s11599-007-9025-6.
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Ponte, Silvia Ferraz Ayrosa, Atila Rondon, Herick Bacelar, Eulalio Damazio, Sandra Maria Lima Ribeiro, Gilmar Garrone, Valdemar Ortiz, and Antonio Macedo Jr. "Anthropometric measurements as an indicator of nutritional status in spina bifida patients undergoing enterocystoplasty." Einstein (São Paulo) 11, no. 2 (June 2013): 168–73. http://dx.doi.org/10.1590/s1679-45082013000200006.
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OBJECTIVE: To use anthropometric measurements to compare nutritional status in children with neurogenic bladder dysfunction secondary to meningomyelocele who underwent enterocystoplasty and those who did not undergo surgery. METHODS: A case-control study was conducted in 20 children, divided into two groups: those who had enterocystoplasty (Group A) and those who did not undergo surgery (Group B), matched for genre and age. Weight, height, arm circumference, and triceps skinfold thickness were the parameters used. Nutritional assessment was determined by calculating the indexes, based on age and genre. Classification was based on the percentile and the results were compared with the reference values. RESULTS: The mean age was 6.41 years in Group A and 6.35 years in Group B. The interval between surgery and evaluation was 11 months. The following measures were found for Group A: 80% of children were eutrophic, a percentage 30% greater than that in Group B; arm muscle circumference was adequate in 40% of patients, a percentage 20% greater than that in Group B; arm muscle area was adequate in 90%, a percentage 30% greater than that in Group B. Values in Group B were as follows: for triceps skinfold thickness, 60% of patients had values above the mean, a percentage 20% greater than that in Group A; for arm fat index, 60% of patients were above the mean value, 40% greater than in Group A. CONCLUSION: Patients who had undergone enterocystoplasty showed better nutritional status, while the control group presented higher fat indexes in anthropometric measures. However, the differences between groups were not statistically significant.
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Datta, Sutapa, Subhra Chattopadhyay, Asankur Das, and Chandan Mitra. "Fat Free Mass and Upper Arm Muscle Area as Measures of Muscularity in Tribal and Non-tribal Indian College Students." Journal of Scientific Research and Reports 5, no. 4 (January 10, 2015): 295–306. http://dx.doi.org/10.9734/jsrr/2015/14283.
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Mphahlele, Tumisho Praise, Kotsedi Daniel Monyeki, Winnie Maletladi Dibakwane, and Sekgothe Mokgoatšana. "The Relationship between Under-Nutrition and Hypertension among Ellisras Children and Adolescents Aged 9 to 17 Years." International Journal of Environmental Research and Public Health 17, no. 23 (December 1, 2020): 8926. http://dx.doi.org/10.3390/ijerph17238926.
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Background: Globally, under-nutrition and hypertension in children has been associated with the risk of developing cardiovascular disease (CVD) in adulthood. The main objective of this study was to investigate the relationship between under-nutrition and hypertension, furthermore, to determine the risk of developing hypertension due to under-nutrition. Methods: The study comprised of 1701 participants (874 boys and 827 girls) between the ages of 9 and 17 years old. All anthropometric and blood pressure measurements were taken according to standard procedures. Mid-upper arm circumference (MUAC), body mass index (BMI), upper arm fat area (UFA), total upper arm area (TUAA) and upper arm muscle area (UMA) of Ellisras children were compared with the National Health and Nutrition Examination Survey III reference population. The linear regression models were used to determine the relationship between under-nutrition with hypertension for unadjusted and then adjusted for age and gender. The logistic regression model was used to determine the risk of under-nutrition on developing hypertension for unadjusted and adjusted for age and gender. Results: There was a positive significant (p < 0.0001) association between all under-nutrition variables (MUAC, BMI, UFA, TUAA and UMA) and systolic blood pressure (SBP; beta ranges between 0.84 and 2.78), and diastolic blood pressure (DBP; beta ranges between 0.3 and 1.08 before adjusting and after adjusting for age and gender (SBP, beta ranges between 0.59 and 2.00 and DBP (beta ranges between 0.24 and 0.80. Conclusion: The prevalence of under-nutrition was high while the prevalence of hypertension was low in this study. The mean under-nutrition variables (BMI, UFA, UMA and MUAC) of Ellisras children were far lower compared to the NHANES III reference population. Hypertension was significantly associated with under-nutrition in this study.
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Silva, Luciano Bruno de Carvalho, Lucia Figueiredo Mourão, Ariovaldo Armando Silva, Núbia Maria Freire Vieira Lima, Sara Regina Almeida, Marcondes C. Franca Jr, Anamarli Nucci, and Jaime Amaya-Farfán. "Amyotrophic lateral sclerosis: combined nutritional, respiratory and functional assessment." Arquivos de Neuro-Psiquiatria 66, no. 2b (June 2008): 354–59. http://dx.doi.org/10.1590/s0004-282x2008000300014.
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OBJECTIVE: To establish correlations between nutritional, functional and respiratory indices of patients with amyotrophic lateral sclerosis (ALS). METHOD: Twenty patients (13 appendicular - GA and 7 bulbar - GB) were included in the multidisciplinary study at the Neurological Clinic Ambulatory of the University of Campinas Hospital. RESULTS: Among the GA type significant correlation was observed between maximal inspiratory (MIP) and expiratory (MEP) pressure (r= -0.76), MEP and pulse oxymetry (r=0.58), MIP and percent weight loss (%WL; r=0.59), and between MIP, total and subscale respiratory scores (ALSFRS-R) with %WL. With regard to the GB, correlation was found between MEP and body mass index (BMI) (r=0.97). In both GA and GB correlations were noticed between the BMI and the variables mass (kg), fat (%), arm and wrist circumference (cm), and tricipital, subscapular and supra-iliac skinfolds (mm), as well as the arm muscle circumference (cm) and fatty arm muscular area (mm²). CONCLUSION: It is suggested that the application of simple anthropometric measurements could be useful in routine monitoring of patients with ALS.
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dos Reis, Lígia Cardoso, Patrícia Helen de Carvalho Rondó, Heloisa Helena de Sousa Marques, and Neuber José Segri. "Anthropometry and body composition of vertically HIV-infected children and adolescents under therapy with and without protease inhibitors." Public Health Nutrition 18, no. 7 (August 13, 2014): 1255–61. http://dx.doi.org/10.1017/s1368980014001591.
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AbstractObjectiveAlthough the benefits of highly active antiretroviral therapy (HAART) have been documented, it is thought to be associated to disturbances in nutritional status. These disturbances may occur early in life and are poorly understood. The present study aimed to investigate the relationship between anthropometric parameters and body composition of perinatally HIV-infected children and adolescents under HAART, according to use and non-use of protease inhibitors.DesignCross-sectional study undertaken between August and December 2007. Demographic, socio-economic, clinical and anthropometric data were collected from the patients. The χ2 test, Wilcoxon rank sum test (Mann–Whitney) and t test were used to compare the following variables between users and non-users of protease inhibitors: age, gender, per capita income, HAART exposure, antiretroviral therapy adopted in the last three years, CD4 count, viral load, pubertal stage, nutritional status (BMI-for-age, height-for-age, waist and neck circumferences, triceps skinfold thickness, body fat percentage, upper-arm fat area and upper-arm muscle area).SettingAn HIV/AIDS out-patient clinic, São Paulo, Brazil.SubjectsOne hundred and fifteen patients (children and adolescents aged 6–19 years).ResultsProtease inhibitors users had a higher prevalence of stunting (P=0·03), lower BMI (P=0·03) and lower percentage of body fat (P=0·05) compared with non-users. There was no statistically significant difference between the HAART regimens and measurements of fat adiposity.ConclusionsThe findings of the study suggest that children and adolescents under protease inhibitors are at higher risk of growth and development deviations, but not at risk of body fat redistribution.
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Zaccagni, Luciana, Stefania Toselli, Barbara Bramanti, Emanuela Gualdi-Russo, Jessica Mongillo, and Natascia Rinaldo. "Handgrip Strength in Young Adults: Association with Anthropometric Variables and Laterality." International Journal of Environmental Research and Public Health 17, no. 12 (June 15, 2020): 4273. http://dx.doi.org/10.3390/ijerph17124273.
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The measurement of handgrip strength (HGS) is an indicator of an individual’s overall strength and can serve as a predictor of morbidity and mortality. This study aims to investigate whether HGS is associated with handedness in young adults and if it is influenced by anthropometric characteristics, body composition, and sport-related parameters. We conducted a cross-sectional study on a sample of 544 young Italian adults aged 18–30 years. We measured HGS using a dynamometer and collected data on handedness and physical activity, along with anthropometric measurements. In both sexes, the HGS of the dominant side was significantly greater than that of the non-dominant side. Furthermore, in ambidextrous individuals, the right hand was stronger than the left. A comparison between the lowest and the highest tercile of HGS highlighted its significant association with anthropometric and body composition parameters in both sexes. Moreover, sex, dominant upper arm muscle area, arm fat index, fat mass, and fat-free mass were found to be significant predictors of HGS by multiple regression analysis. Our findings suggest that HGS is especially influenced by body composition parameters and handedness category. Therefore, HGS can be used as a proxy for unhealthy conditions with impairment of muscle mass, provided that the dominance in the laterality of the subject under examination is taken into account.
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Dingley, Andrew A., David B. Pyne, and Brendan Burkett. "Relationships Between Propulsion and Anthropometry in Paralympic Swimmers." International Journal of Sports Physiology and Performance 10, no. 8 (November 2015): 978–85. http://dx.doi.org/10.1123/ijspp.2014-0186.
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Purpose:To characterize relationships between propulsion, anthropometry, and performance in Paralympic swimming.Methods:A cross-sectional study of swimmers (13 male, 15 female) age 20.5 ± 4.4 y was conducted. Subject locomotor categorizations were no physical disability (n = 8, classes S13–S14) and low-severity (n = 11, classes S9–S10) or midseverity disability (n = 9, classes S6–S8). Full anthropometric profiles estimated muscle mass and body fat, a bilateral swim-bench ergometer quantified upper-body power production, and 100-m time trials quantified swimming performance.Results:Correlations between ergometer mean power and swimming performance increased with degree of physical disability (low-severity male r = .65, ±0.56, and female r = .68, ±0.64; midseverity, r = .87, ±0.41, and r = .79, ±0.75). The female midseverity group showed nearperfect (positive) relationships for taller swimmers’ (with a greater muscle mass and longer arm span) swimming faster, while for female no- and low-severity-disability groups, greater muscle mass was associated with slower velocity (r = .78, ±0.43, and r = .65, ±0.66). This was supported with lighter females (with less frontal surface area) in the low-severity group being faster (r = .94, ±0.24). In a gender contrast, low-severity males with less muscle mass (r = -.64, ±0.56), high skinfolds (r = .78, ±0.43), a longer arm span (r = .58, ±0.60) or smaller frontal surface area (r = -.93, ±0.19) were detrimental to swimming-velocity production.Conclusion:Low-severity male and midseverity female Paralympic swimmers should be encouraged to develop muscle mass and upper-body power to enhance swimming performance. The generalized anthropometric measures appear to be a secondary consideration for coaches.
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Saito, R., S. Ohkawa, S. Ichinose, M. Nishikino, N. Ikegaya, and H. Kumagai. "Validity of mid-arm muscular area measured by anthropometry in nonobese patients with increased muscle atrophy and variation of subcutaneous fat thickness." European Journal of Clinical Nutrition 64, no. 8 (May 26, 2010): 899–904. http://dx.doi.org/10.1038/ejcn.2010.87.
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McKendry, James, Sophie Joanisse, Shanat Baig, Boyang Liu, Gianni Parise, Carolyn A. Greig, and Leigh Breen. "Superior Aerobic Capacity and Indices of Skeletal Muscle Morphology in Chronically Trained Master Endurance Athletes Compared With Untrained Older Adults." Journals of Gerontology: Series A 75, no. 6 (June 1, 2019): 1079–88. http://dx.doi.org/10.1093/gerona/glz142.
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Abstract The study aim was to comprehensively assess physiological function and muscle morphology in chronically trained older individuals against untrained young and older individuals. In a cross-sectional design, 15 young untrained controls (YC) (20 ± 2.7 years, 78.9 ± 13.3 kg), 12 untrained older controls (OC) (69.8 ± 4.1 years, 77.5 ± 14.2 kg), and 14 endurance-trained master athletes (MA) (67.1 ± 4.1 years, 68.7 ± 6.5 kg) underwent assessments of body composition, aerobic capacity, strength, muscle architecture, and fiber-type morphology. Skeletal muscle index was lower and body fat greater in OC versus MA. Estimated VO2max (mL·kg−1·minute−1) was similar between MA and YC, but lower in OC. Isometric leg strength normalized to fat-free mass was similar between groups, whereas normalized isometric arm strength was greater in YC than MA. Myosin heavy chain (MHC) I fiber area was greater in MA than OC, while MHC II fiber area was greater in YC than OC. MHC II fiber myonuclear domain size was greater in YC than OC and MA, whereas MA had greater MHC I and MHC II fiber capillarization than OC and YC. Satellite cell content was similar between groups. Chronic endurance training enhances indices of muscle morphology and improves body composition and aerobic capacity in older age, with potentially important implications for healthspan extension.
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Voronkov, L. G., К. V. Voitsekhovska, S. V. Fedkiv, and V. I. Koval. "Anthropometric parameters and body tissue compartments of patients with chronic heart failure and reduced left ventricular ejection fraction depending on weight loss within the previous 6 months." Ukrainian Journal of Cardiology 26, no. 3 (August 1, 2019): 53–61. http://dx.doi.org/10.31928/1608-635x-2019.3.5361.
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The aim – to compare the anthropometric parameters and body tissue compartments of patients with chronic heart failure (CHF) and reduced left ventricular ejection fraction depending on weight loss ≥ 6 % of total body weight within the previous 6 months. Materials and methods. 77 stable patients with chronic heart failure 25–75 years old, NYHA class II–IV, with left ventricular ejection fraction ≤ 35 % were screened. The criterion for the patients group distribution was the weight loss in the last 6 months ≥ 6 % according to the European guidelines for the diagnosis and treatment of CHF. Body composition was measured by dual-energy X-ray absorptiometry. Patients were included in a clinical compensation phase. Results and discussion. Weight loss ≥ 6 % within the previous 6 months was observed in 34 (44.2 %) patients. Patients with weight loss ≥ 6 % had a significantly smaller fat tissue mass (p=0.002) and lean tissues mass (p=0.039), which was confirmed by comparing the normalized indicators of these tissue arrays relative to growth. The limb muscle mass (p=0.006) and the limb muscle mass index (p=0.002) were significantly less in this group of patients. The number of lost kilograms over the past 6 months correlated inversely with the muscle mass index of limbs (r=–0.411, p=0.001), body weight (r=–0.381, p=0.001), muscle mass of limbs (r=–0.360, p=0.001), hip circumference (r=–0.352, p=0.002), body surface area (r=–0.345, p=0.009), waist circumference (r=–0.334, p=0.003), body mass index (r=–0.330, p=0.004), shoulder arm circumference (r=–0.280, p=0.015), lean tissue mass (r=–0.277, p=0.015), skin-fat fold thickness under the scapula (r=–0.273, p=0.018), fat mass tissue (r=–0.269, p=0.018), the circumference of tense arm (r=–0.262, p=0.023), the ratio of fat tissue to height (r=–0.253, p=0.026), the fat tissue index (r=–0.233, p=0.042), and correlated positively with the percentage of bone tissues (r=0.250, p=0.028). Conclusions. Weight loss ≥ 6 % over the past 6 months in patients with CHF and reduced ventricular ejection fraction was observed in 34 (44.2 %) patients. Patients with CHF and weight loss ≥ 6 % were significantly older, had a higher NYHA class, lower body weight, body mass index, shoulder circumference of a tense and relaxed arm, waist and hip circumferences, thickness skin and fat folds over the biceps, triceps and under the scapula. Patients with a body weight loss of ≥ 6 % over the past 6 months had a significantly lower percentage of fat tissue, fat mass and lean tissue mass, indexes of fat mass and muscular tissue of limbs. Patients in groups did not differ in terms of mineral bone mass.
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Ghiani, Giovanna, Sara Magnani, Azzurra Doneddu, Gianmarco Sainas, Virginia Pinna, Marco Caboi, Girolamo Palazzolo, Filippo Tocco, and Antonio Crisafulli. "Case Study: Physical Capacity and Nutritional Status Before and After a Single-Handed Yacht Race." International Journal of Sport Nutrition and Exercise Metabolism 28, no. 5 (September 1, 2018): 558–63. http://dx.doi.org/10.1123/ijsnem.2017-0345.
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During solitary sailing, the sailor is exposed to sleep deprivation and difficulties in consuming regular meals. Sailor weight loss is often reported. In the present case study, we describe changes in the physical capacity and nutritional status of an athlete attempting a single-handed yacht race around the globe. An Italian male ocean racer (Gaetano Mura) asked for our help to reach an optimum level of physical and nutritional preparation. We planned his diet after assessing his anthropometric parameters and body composition, as well as his usual energy intake and nutritional expenditure. The diet consisted of 120 meals stored in sealed plastic bags. Before his departure, GM performed two incremental exercise tests (cycle ergometry and arm crank ergometry) to assess his physical capacity. Cardiac functions were also estimated by Doppler echocardiography. All measures and exercise tests were repeated 10 days after GM finished the race, which lasted 64 days. Anthropometric measures did not change significantly, with the exception of arm fat area and thigh muscle area, which decreased. There were evident increments in maximum oxygen intake and maximum workload during arm cranking after the race. On the contrary, maximum oxygen uptake and maximum workload decreased during cycling. Finally, end-diastolic and stroke volume decreased after the race. It was concluded that nutritional counseling was useful to avoid excessive changes in nutritional status and body composition due to 64 days of solitary navigation. However, a reduction in physical leg capacity and cardiovascular functions secondary to leg disuse were present.
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Gunanti, Inong R., Abdullah Al-Mamun, Lisa Schubert, and Kurt Z. Long. "The effect of zinc supplementation on body composition and hormone levels related to adiposity among children: a systematic review." Public Health Nutrition 19, no. 16 (May 20, 2016): 2924–39. http://dx.doi.org/10.1017/s1368980016001154.
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AbstractObjectiveTo provide a comprehensive synthesis of the effects of Zn supplementation on childhood body composition and adiposity-related hormone levels.DesignFive electronic databases were searched for randomized controlled trials of Zn supplementation studies published before 28 February 2015. No statistical pooling of results was carried out due to diversity in study designs.SettingCommunity- or hospital-based, from fourteen developing and developed countries.SubjectsChildren and adolescents aged 0 to 10 years.ResultsSeven of the fourteen studies reported an overall or subgroup effect of Zn supplementation on at least one parameter of body composition, when determined by anthropometric measurements (increased mid upper-arm circumference, triceps skinfold, subscapular skinfold and mid upper-arm muscle area, and decreased BMI). Three out of the fourteen studies reported increased mean value of total body water estimated by bio-impedance analysis and increased fat-free mass estimated by dual energy X-ray absorptiometry and by total body water. Zn supplementation was associated with increased fat-free mass among stunted children. One study found supplementation decreased leptin and insulin concentrations.ConclusionsDue to the use of anthropometry when determining body composition, a majority of the studies could not accurately address whether alterations in the fat and/or fat-free mass components of the body were responsible for the observed changes in body composition. The effect of Zn supplementation on body composition is not consistent but may modify fat-free mass among children with pre-existing growth failure.
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Castro-Costa, Érico, Sérgio V. Peixoto, Josélia O. A. Firmo, Elizabeth Uchoa, and Maria Fernanda F. Lima-Costa. "The association between nutritional status and cognitive impairment in Brazilian community-dwelling older adults assessed using a range of anthropometric measures - the Bambui Study." Dementia & Neuropsychologia 7, no. 4 (December 2013): 403–9. http://dx.doi.org/10.1590/s1980-57642013dn74000008.
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ABSTRACT In most studies, body mass index (BMI) has been used as the main measurement of nutritional status. However, BMI does not differentiate between body fat and muscle mass. Objective: To investigate the association between nutritional status and cognitive impairment in a population of Brazilian elderly. Methods: Participants (n=1,496) from the Bambuí Cohort Study of Aging were selected based on the results for the two variables nutritional status and cognitive impairment (MMSE score). Gender, age, education, lifestyle, ApoE, chronic diseases, depressive symptoms, current use of hypnotic or sedative medication and functional disability were used as confounding factors for adjusting the logistic regression. Results: Cognitive impairment was associated with lower BMI (OR: 0.91; CI: 0.86-0.95), waist circumference (OR: 0.97; CI: 0.95-0.99), triceps skinfold thickness (OR: 0.92; CI: 0.89-0.96) among the younger participants (60-69 years), while lower arm muscle circumference (OR: 0.88; CI: 0.80-0.98) and corrected arm muscle area (OR: 0.96; CI: 0.93-0.99) were associated with cognitive impairment among the older participants (70 years and over). Conclusion: There was a difference of association between anthropometric measures and cognitive impairment after stratifying by age group. In the group aged between 60 and 69, cognitive impairment was associated with measures related to fat mass, while in the group aged over 70, cognitive impairment was associated with measures related to muscle mass. This finding suggests that investigation of nutritional status in the elderly using anthropometric measures should not be restricted only to the use of BMI, and should also, differ according to age.
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Singh, Shweta, Neelam Singh, and Gautam K. Kshatriya. "Assessment of Nutritional Status and Body Composition in Tibetan Adolescent girls of Kangra district, Himachal Pradesh." Anthropological Review 83, no. 4 (December 1, 2020): 395–405. http://dx.doi.org/10.2478/anre-2020-0027.
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Abstract Malnutrition among adolescents is an important public health issue in India. The aim of the present study was to assess nutritional status and body composition characteristics of adolescent girls and their interrelationships with physical activity and socioeconomic status (SES). Nutritional status and body composition characteristics were assessed in terms of body mass index (BMI), upper arm muscle area by height (UAMAH) and percent body fat (PBF) among 276 Tibetan adolescent girls from Kangra district, Himachal Pradesh. Overall, 12.7% of the girls were in the wasting category (using Z-score based classification for UAMAH) and 9.8% were thin. About 16.3% girls were obese. Significant variabilities of PBF have been observed with respect to age and levels of physical activity and wasting. Adolescent girls were observed to have higher lean body mass than body fat.
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Agteresch, Hendrik J., Trinet Rietveld, Leon G. M. Kerkhofs, J. Willem O. van den Berg, J. H. Paul Wilson, and Pieter C. Dagnelie. "Beneficial Effects of Adenosine Triphosphate on Nutritional Status in Advanced Lung Cancer Patients: A Randomized Clinical Trial." Journal of Clinical Oncology 20, no. 2 (January 15, 2002): 371–78. http://dx.doi.org/10.1200/jco.2002.20.2.371.
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PURPOSE: In a randomized clinical trial in patients with advanced non–small-cell lung cancer (NSCLC), infusion with adenosine 5′-triphosphate (ATP) inhibited loss of body weight and quality of life. In the present article, the effects of ATP on body composition, energy intake, and energy expenditure as secondary outcome measures in the same patients are reported. PATIENTS AND METHODS: Patients with NSCLC, stage IIIB or IV, were randomized to receive either 10 intravenous, 30-hour ATP infusions every 2 to 4 weeks or no ATP. Fat mass (FM), fat-free mass (FFM), and arm muscle area were assessed at 4-week intervals for 28 weeks. Food intake, body cell mass (BCM), and resting energy expenditure (REE) were assessed at 8-week intervals for 16 weeks. Between-group differences were tested for statistical significance by repeated-measures analysis of covariance. RESULTS: Fifty-eight patients were randomized (28 ATP, 30 control). No change in body composition over the 28-week follow-up period was found in the ATP group, whereas, per 4 weeks, the control group lost 0.6 kg of FM (P = .004), 0.5 kg of FFM (P = .02), 1.8% of arm muscle area (P = .02), and 0.6% of BCM/kg body weight (P = .054) and decreased 568 KJ/d in energy intake (P = .0001). Appetite also remained stable in the ATP group but decreased significantly in the control group (P = .0004). No significant differences in REE between the ATP and control groups were observed. CONCLUSION: The inhibition of weight loss by ATP infusions in patients with advanced NSCLC is attributed to counteracting the loss of both metabolically active and inactive tissues. These effects are partly ascribed to maintenance of energy intake.
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Gort-van Dijk, Dorienke, Linda B. M. Weerink, Milos Milovanovic, Jan-Willem Haveman, Patrick H. J. Hemmer, Gerard Dijkstra, Robert Lindeboom, and Marjo J. E. Campmans-Kuijpers. "Bioelectrical Impedance Analysis and Mid-Upper Arm Muscle Circumference Can Be Used to Detect Low Muscle Mass in Clinical Practice." Nutrients 13, no. 7 (July 9, 2021): 2350. http://dx.doi.org/10.3390/nu13072350.
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Identification of low muscle mass becomes increasingly relevant due to its prognostic value in cancer patients. In clinical practice, mid-upper arm muscle circumference (MAMC) and bioelectrical impedance analysis (BIA) are often used to assess muscle mass. For muscle-mass assessment, computed tomography (CT) is considered as reference standard. We investigated concordance between CT, BIA, and MAMC, diagnostic accuracy of MAMC, and BIA to detect low muscle mass and their relation with the clinical outcome malnutrition provided with the Patient-Generated Subjective Global Assessment Short Form (PG-SGA SF). This cross-sectional study included adult patients with advanced esophageal and gastrointestinal cancer. BIA, MAMC, and PG-SGA-SF were performed. Routine CT-scans were used to quantify psoas muscle index (PMI) and skeletal muscle area. Good concordance was found between CTPMI and both BIAFFMI (fat free mass index) (ICC 0.73), and BIAASMI (appendicular skeletal muscle index) (ICC 0.69) but not with MAMC (ICC 0.37). BIAFFMI (94%), BIAASMI (86%), and MAMC (86%) showed high specificity but low sensitivity. PG-SGA-SF modestly correlated with all muscle-mass measures (ranging from −0.17 to −0.43). Of all patients with low muscle mass, 62% were also classified with a PG-SGA-SF score of ≥4 points. Although CT remains the first choice, since both BIA and MAMC are easy to perform by dieticians, they have the potential to be used to detect low muscle mass in clinical practice.
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Shaikh, Saijuddin, Rituparna Das, Rana Saha, Sukanta Das, and Parasmani Dasgupta. "Age and sex specific variations in body composition in Indian urban Bengali Hindu children, adolescents and young adults aged 7–21 years." Anthropological Review 83, no. 1 (March 1, 2020): 1–17. http://dx.doi.org/10.2478/anre-2020-0003.
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AbstractChildhood and adolescent obesity is a public health concern worldwide. However, little attention has been paid on status of overweight and body composition of Indian Bengali urban middle and high SES population. The objective was to determine the prevalence of overweight and body composition status by age and sex in children, adolescents and young adults. This cross-sectional study was carried out among 4194 unmarried school and college students (1999 males and 2195 females) aged 7–21 years belonging to the Bengali Hindu Population in Kolkata, India. The survey period was from 1999 to 2011. Anthropometry of participants were measured. Age and sex specific ≥85 percentile of body mass index (BMI) for children (<18 years of age) and BMI ≥23 kg/m2 (≥18 years of age) for adults were used to define overweight. Fat percent, upper arm fat area (UAFA) and upper arm muscle area (UAMA) were estimated. Simple linear regression was performed to check trend of changes with age. The overall prevalence of overweight was 14.8% in both sexes. Mean fat percent was higher in females than males (23.5% vs 13.5% respectively; p<0.001) and it increased by 0.18% (0.02) in males and 0.56% (0.02) in females per year (both p<0.001). UAMA gradually increased with age in both sexes and increasing rate per year was by 2.07 (0.04) cm2 in males and 1.19 (0.04) cm2 in females (both p<0.001). However, UAFA increased by 0.41 (0.03) cm2 and 0.90 (0.03) cm2 every year in males and females respectively (both p<0.001). Sum of biceps, triceps, subscapular and suprailliac skinfolds increased by 1.66 (0.06) mm and 0.5 (0.07) mm per year in females and males respectively (both p<0.001). Overall prevalence of overweight was the same in both sexes but adipose tissue was higher and muscularly was lower in females than males.
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Xu, Liuqing, Changming Zhou, Yiqun Ling, Huiping Ding, Qiong Wang, Yan Wu, Yong Qian, Bingqing He, and Tianhao Ni. "Effects of Short-Term Unsupervised Exercise, Based on Smart Bracelet Monitoring, on Body Composition in Patients Recovering from Breast Cancer." Integrative Cancer Therapies 20 (January 2021): 153473542110407. http://dx.doi.org/10.1177/15347354211040780.
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Objective: We aimed to investigate the effects of exercise, monitored and managed using smart bracelets, on body composition, and quality of life in breast cancer survivors. Methods: A before-and-after study was conducted in 109 patients who were in the recovery phase of breast cancer and attended the Breast Surgery Department of the Cancer Hospital of Fudan University up to December 2017. Patients were advised to adhere to at least 150 minutes of moderate-intensity exercise per week, and a smart bracelet was issued to each participant to record their daily exercise data for 3 months. Bioelectrical impedance analysis was used to observe the effects of short-term unsupervised exercise intervention on body composition in patients recovering from breast cancer. Patients completed the Functional Assessment of Cancer Therapy-Breast to assess health-related quality of life. Results: Weight, body mass index (BMI), body fat mass (BFM), fat mass index (FMI), percent body fat (PBF), arm circumference (AC), arm muscle circumference (AMC), and visceral fat area (VFA) were lower than baseline after exercising for 3 months based on data from the wearable devices ( P < .05). The only significant improvement was found in the “additional concerns about breast cancer” category among the quality-of-life assessments ( P < .05). The average walking time was negatively associated with BFM, PBF, and FMI, while the average calorie consumption due to running was positively associated with fat free mass (FFM). Conclusion: In this study, we demonstrated that short-term exercise may be beneficial for postoperative breast cancer survivors. A wearable device could help patients track physical data easily and promote a healthier and more positive life.
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Grillenberger, Monika, Charlotte G. Neumann, Suzanne P. Murphy, Nimrod O. Bwibo, Robert E. Weiss, Luohua Jiang, Joseph G. A. J. Hautvast, and Clive E. West. "Intake of micronutrients high in animal-source foods is associated with better growth in rural Kenyan school children." British Journal of Nutrition 95, no. 2 (February 2006): 379–90. http://dx.doi.org/10.1079/bjn20051641.
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Observational studies have shown that children in developing countries consuming diets containing high amounts of bioavailable nutrients, such as those found in animal-source foods, grow better. The present study investigated which specific nutrients from the diet of Kenyan school children predicted their growth. The children (n544, median age 7 years) participated in a 2-year long food supplementation study with animal-source foods. Height gain during the intervention period was positively predicted by average daily intakes of energy from animal-source foods, haem Fe, preformed vitamin A, Ca and vitamin B12. Weight gain was positively predicted by average daily intakes of energy from animal-source foods, haem Fe, preformed vitamin A, Ca and vitamin B12. Gain in mid-upper-arm muscle area was positively predicted by average daily intakes of energy from animal-source foods and vitamin B12. Gain in mid-upper-arm fat area was positively predicted by average daily intakes of energy from animal-source foods. Gain in subscapular skinfold thickness was not predicted by any of the nutrient intakes. Negative predictors of growth were total energy and nutrients that are contained in high amounts in plant foods. The study shows that growth was positively predicted by energy and nutrients that are provided in high amounts and in a bioavailable form in meat and milk, and their inclusion into the diets of children in developing countries should be part of all food-based programmes in order to improve micronutrient status and growth.
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García-Osorio, I. del C., J. Oliva-Hernández, M. M. Osorio-Arce, G. Torres-Hernández, J. A. Hinojosa-Cuéllar, and R. González-Garduño. "Influence of gender on carcass yield of twin lambs Blackbelly x Pelibuey at 56 days of age." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 68, no. 4 (August 2016): 1077–84. http://dx.doi.org/10.1590/1678-4162-8215.
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ABSTRACT The aim of this study was to determine the influence of gender on pre-weaning growth, yield and weight of primal cuts of the carcass of Blackbelly x Pelibuey lambs. 16 twin lambs were used. The lamb gender was the fixed factor. The variables evaluated were: body weight at birth and at weaning, average daily weight gain, weight and yield of carcass and primal cuts: neck, arm, thorax, abdomen and leg. Gender did not affect (P>0.05) body weight at birth. However, the pre-weaning average daily weight gain and body weight at weaning were affected (P<0.05) by the gender. Hot carcass yield and weight and primal cuts were not affected (P>0.05) by the gender of the lamb. Nevertheless, the area of the Longissimus dorsi muscle and cavity fat were different between males and females (P<0.05) 11.5±0.73cm2 and 198±0.05 g vs 9.3±0.73cm2 and 282±0.05g, respectively. In conclusion, in twin lambs Blackbelly x Pelibuey males had greater average daily weight gain and body weight at weaning than females. Carcass yield and weight and primal cuts were not affected by the gender of the lamb. However, males had greater area of the L. dorsi muscle than females and these in turn had a greater amount of cavity fat than males.
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Rocha, Raquel, Genoile Oliveira Santana, Neogélia Almeida, and Andre Castro Lyra. "Analysis of fat and muscle mass in patients with inflammatory bowel disease during remission and active phase." British Journal of Nutrition 101, no. 5 (July 17, 2008): 676–79. http://dx.doi.org/10.1017/s0007114508032224.
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Inflammatory bowel disease (IBD) is often associated with malnutrition. The aim of this study was to compare the body composition of outpatients with IBD during remission and active phase. In order to evaluate disease activity we used Crohn's Disease Activity Index for Crohn's disease (CD) patients and Lichtiger's Index for ulcerative colitis (UC) patients. All patients underwent the analysis of BMI, arm muscle area (AMA) and triceps plus subscapula skinfold thickness (TST+SST) to identify total, muscle and fat mass, respectively. In total 102 patients were evaluated (CD,n50; UC,n52) and the majority was young women. Malnutrition according to BMI was found in 14·0 % of patients with CD and 5·7 % of UC patients. Muscle mass depletion was detected in more than half of the CD and UC patients. The BMI, TST+SST and AMA values were lower in the active phase only in CD patients (P < 0·05). Fat mass depletion was associated with active phase in both CD and UC patients. Body composition parameters obtained using BMI, TST+SST and AMA were not correlated with the presence of fistula in CD patients (P>0·05). In conclusion, patients without signs of malnutrition had fat mass depletion especially in the active phase and muscle mass depletion occurred both in CD and UC patients.
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Roelofs, Erica J., Abbie E. Smith-Ryan, Eric T. Trexler, and Katie R. Hirsch. "Seasonal Effects on Body Composition, Muscle Characteristics, and Performance of Collegiate Swimmers and Divers." Journal of Athletic Training 52, no. 1 (January 1, 2017): 45–50. http://dx.doi.org/10.4085/1062-6050-51.12.26.
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Context: Previous researchers have indicated the importance of body composition and muscle quality in athletic performance. However, body composition and muscle-quality measures in swimmers and divers over a training season have yet to be evaluated. Objective: To identify changes in body composition and muscle characteristics over a competitive season and identify relationships between these variables and performance in National Collegiate Athletic Association Division I swimmers and divers. Design: Cross-sectional study. Setting: University laboratory. Patients or Other Participants: A total of 17 collegiate swimmers and divers (age = 18.6 ± 0.7 years, height = 175.8 ± 4.0 cm, body mass = 69.7 ± 7.0 kg). Main Outcome Measure(s): At preseason and postseason, body composition in each participant was assessed using dual-energy x-ray absorptiometry. Echo intensity and muscle cross-sectional area were determined from an ultrasound panoramic scan of the vastus lateralis muscle. Race times were obtained from the university athletic Web site. Results: Lean mass (P = .016), arm lean mass (P = .008), and muscle cross-sectional area (P = .03) were higher at postseason, whereas body fat percentage (P = .041) and echo intensity (P = .0007) were lower at postseason. Performance improved from preseason to postseason in all event groups (sprinters, distance swimmers, and divers; P < .05). Conclusions: Body composition and muscle characteristics improved through 1 training season, which may have implications for performance. Quantifying body composition and muscle characteristics may be beneficial for professionals who work with athletes in order to improve performance and prevent injury.
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Blonna, Davide, Alberto Olivero, Claudia Galletta, Valentina Greco, Filippo Castoldi, Matteo Fracassi, Marco Davico, and Roberto Rossi. "Minimal Damage to the Supinator Muscle After the Double-Incision Technique for Distal Biceps Tendon Repair." Orthopaedic Journal of Sports Medicine 8, no. 12 (December 1, 2020): 232596712096777. http://dx.doi.org/10.1177/2325967120967776.
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Background: The effect of the double-incision technique on the supinator muscle is unclear. Purpose: The aim of this study was to quantify fatty atrophy of the supinator muscle and map the area of muscle damage. Study Design: Case series; Level of evidence, 4. Methods: A total of 19 male patients (median age, 43 years) who underwent distal biceps tendon repair were included in the analysis. Patients with a minimum of 12 months of follow-up were included. The following variables were analyzed: range of motion; shortened version of Disabilities of the Arm, Shoulder and Hand (QuickDASH) score; Summary Outcome Determination (SOD) score; and isokinetic peak force and endurance in supination. Quantitative analysis and mapping of fatty infiltration of the supinator muscle were based on the calculation of proton density fat fraction on magnetic resonance imaging scans of both elbows using the IDEAL (Iterative Decomposition of Echoes of Asymmetrical Length) sequence. Results: At an average follow-up of 24 months (range, 12-64 months), the median SOD score was 9.0 (95% CI, 7.8-9.4), and the mean QuickDASH score was 6.7 (95% CI, 0.0-14.1). A difference of 17% in peak torque was measured between repaired and nonrepaired elbows (repaired elbow: 9.7 N·m; nonrepaired elbow: 11.7 N·m; P = .11). Endurance was better in the repaired elbow than the nonrepaired elbow (8.4% vs 14.9% work fatigue, respectively; P = .02). The average fat fraction of the supinator muscle was 19% (95% CI, 16%-21%) in repaired elbows and 14% (95% CI, 13%-16%) in contralateral elbows ( P = .04). The increase in fat fraction was located in a limited area between the radius and ulna at the level of the bicipital tuberosity. Conclusion: The assessment of the supinator muscle showed a limited increase in fat fraction between the radius and ulna at the level of the bicipital tuberosity. No significant effect on supination strength was highlighted.