Journal articles: 'Hand. Grip strength'

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Davis, Mikaila L., Jordan M. Glenn, Rodger Stewart, Carly Arnold, Landon Lavene, Aaron Martinez, Lauren Wethington, Michelle Gray, and Michelle Gray. "Hand-grip Strength." Medicine & Science in Sports & Exercise 47 (May 2015): 882–83. http://dx.doi.org/10.1249/01.mss.0000479128.26644.27.

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Shin, Yun-A., Won-Ho Choi, and Jae-Hyun Kim. "Grip Strength Measurement in the Right Hand Better Predicts Mortality Regardless of Dominant Hand." Exercise Science 31, no. 1 (February 7, 2022): 110–18. http://dx.doi.org/10.15857/ksep.2021.00409.

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PURPOSE: Muscle strength is often higher when measured on the dominant hand compared to non-dominant hand and there are reports of differences in the mortality rate between left-handed and right-handed people in Korean population. Therefore, it is necessary to longitudinally investigate the effect of the grip strength of the dominant hand on mortality rates.METHODS: Data from the Korean Longitudinal Study of Aging (KLoSA) from 2006 to 2016 was assessed and 9,196 research subjects were included at baseline. To analyze the effect of grip strength on mortality rates by measuring that of 1) the right hand, 2) the left hand, and 3) the dominant hand for right-handed and left-handed people analyze the association between grip strength and mental health disorders, generalized estimating equation (GEE) model was used.RESULTS: The association between grip strength and all-cause mortality was statistically significant in both hands. When the grip strength was measured with the right and left hands, respectively, the log likelihood ratio test for the Akaike information criterion (AIC) of both hands for mortality was significant (p=.018). When the grip strength for left-handed people was measured with the right and left hands, the log likelihood ratio test for the AIC of both hands for mortality was significant (p=.0009). Taken together, there was no difference in mortality between right-handed and ambidextrous individuals according to the measurement of right-handed and lefthanded grip, but left-handed individuals had a higher mortality according to the measurement of right-handed grip than that of the left hand, which is the dominant side.CONCLUSIONS: Therefore, there was no difference and mortality according to the dominant hand and the measurement of grip strength in the right hand is a better predictor of mortality than the use of maximum or average value after measuring grip strength in both hands.

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Sadeghifar, A. R., A. Karbalaeikhani, and A. R. Saied. "An assessment of the effects of variations in the Palmaris longus tendon and the fifth superficial flexor digitorum on pinch and grip strength." Journal of Back and Musculoskeletal Rehabilitation 33, no. 5 (September 17, 2020): 743–47. http://dx.doi.org/10.3233/bmr-170916.

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INTRODUCTION: The effect of the absence or presence of the Palmaris longus tendon on pinch and grip strength was investigated in this study. Similarly, the effect of the presence or absence of the fifth superficial flexor digitorum on grip strength in the hand was studied. The aim of the present study was to assess the combined effect of these anatomical variations on pinch and grip strength. MATERIALS AND METHODS: In this cross-sectional study, 523 volunteers and their 1046 hands were enrolled. Each hand was assessed for the presence or absence of the Palmaris longus tendon and for variations in the fifth superficial flexor digitorum function. Then the grip and pinch power of the hands were measured with the Jammar Dynamometer. RESULTS: The presence or absence of Palmaris longus had no effect on grip strength in the individuals studied. Likewise, variations in fifth superficial flexor digitorum function had no effect on grip and pinch strengths. But the results of statistical testing showed the effect of the presence of Palmaris longus on pinch strength (25.38 lbs in hands with Palmaris present vs 24.43 lbs in hands without Palmaris). Pinch and grip power was higher in men than in women and in the right hand than in the left. CONCLUSION: Based on the findings of the present study, it seems that absence of the Palmaris longus tendon is associated with a reduction in pinch strength but has no effect on grip strength, and the variations in the fifth superficial flexor digitorum (flexor digitorum superficialis, or FDS) have no effect on pinch and grip strengths.

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Bardo, Ameline, Tracy L. Kivell, Katie Town, Georgina Donati, Haiko Ballieux, Cosmin Stamate, Trudi Edginton, and Gillian S. Forrester. "Get a Grip: Variation in Human Hand Grip Strength and Implications for Human Evolution." Symmetry 13, no. 7 (June 26, 2021): 1142. http://dx.doi.org/10.3390/sym13071142.

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Although hand grip strength is critical to the daily lives of humans and our arboreal great ape relatives, the human hand has changed in form and function throughout our evolution due to terrestrial bipedalism, tool use, and directional asymmetry (DA) such as handedness. Here we investigate how hand form and function interact in modern humans to gain an insight into our evolutionary past. We measured grip strength in a heterogeneous, cross-sectional sample of human participants (n = 662, 17 to 83 years old) to test the potential effects of age, sex, asymmetry (hand dominance and handedness), hand shape, occupation, and practice of sports and musical instruments that involve the hand(s). We found a significant effect of sex and hand dominance on grip strength, but not of handedness, while hand shape and age had a greater influence on female grip strength. Females were significantly weaker with age, but grip strength in females with large hands was less affected than those with long hands. Frequent engagement in hand sports significantly increased grip strength in the non-dominant hand in both sexes, while only males showed a significant effect of occupation, indicating different patterns of hand dominance asymmetries and hand function. These results improve our understanding of the link between form and function in both hands and offer an insight into the evolution of human laterality and dexterity.

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Holland, Sara, James Dickey, Louis Ferreira, and Emily Lalone. "Investigating the grip forces exerted by individuals with and without hand arthritis while swinging a golf club with the use of a new wearable sensor technology." Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology 234, no. 3 (June 16, 2020): 205–16. http://dx.doi.org/10.1177/1754337120923838.

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Hand arthritis is the leading cause of disability in individuals over the age of 50, causing impairments in grip strength and range of motion. Golf is often recommended to patients with hand arthritis as a low-impact sport to maintain a healthy lifestyle. As such, numerous “arthritic” golf grips have been marketed, but lack quantitative measures to justify their use. The objective of this study was to quantify the differences in total applied grip force in golfers with/without hand arthritis using several types of golf grips. Twenty-seven participants (17 without and 10 with hand arthritis) were evaluated swinging mid-iron clubs with 12 different golf grip designs (9 standard and 3 “arthritic”). The trail hand thumb, index, middle, and ring finger applied grip forces were measured using the wireless FingerTPS system. Finger grip configuration (finger joint angles) of the thumb and index were measured using the Dartfish Movement Analysis Software paired with the newly developed Grip Configuration Model to obtain grip range of motion. Results indicated that golfers with hand arthritis had a significant deficit of 45% golf grip strength (P = 0.02). In addition, individuals with hand arthritis exhibited larger forces in 11 out of 12 golf grips tested when compared with their maximum golf grip strength. Despite how these grips are marketed, there are no “savings” in finger force or grip configuration when using the “arthritic” designed golf grips. Therefore, these grips may not be beneficial for patients with hand arthritis.

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Wen, Juan, Jing Wang, Qu Xu, Yan Wei, Lei Zhang, Jiaxin Ou, Qin Hong, Chenbo Ji, Xia Chi, and Meiling Tong. "Hand anthropometry and its relation to grip/pinch strength in children aged 5 to 13 years." Journal of International Medical Research 48, no. 12 (December 2020): 030006052097076. http://dx.doi.org/10.1177/0300060520970768.

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Objective To evaluate the development level of children’s physiological hand shape indicators and their relationship with grip/pinch strength. Methods Hand shape and grip/pinch strength in 1255 Chinese children aged 5 to 13 years were prospectively measured. Development curves of physiological hand shape indicators and grip/pinch strength were constructed. Results The physiological hand shape indicators (full length, middle finger length, width, and wrist thickness) and grip/pinch strength of boys and girls increased with age and showed statistically significant differences at different ages. In most age groups, hand shape indicators and grip/pinch strength were larger in boys than in girls of the same age. After puberty, the physiological hand shape indicators and grip/pinch strength increased more rapidly in girls than in boys of the same age, and the differences gradually decreased thereafter. Moreover, a significant difference in pinch strength between the right and left hands was observed in most age groups. Pearson correlation analysis showed that the physiological hand shape indicators were significantly positively correlated with grip/pinch strength, height, weight, and body mass index. Conclusions This study revealed the relationship between physiological hand shape indicators and grip/pinch strength and provided reference ranges of physiological hand shape indicators and grip/pinch strength for children.

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Miller, Glenn D., and Andris Freivalds. "Gender and Handedness in Grip Strength — A Double Whammy for Females." Proceedings of the Human Factors Society Annual Meeting 31, no. 8 (September 1987): 906–10. http://dx.doi.org/10.1177/154193128703100813.

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With increasing number of women entering into jobs traditionally held by men, it has been found that tools and equipment originally deisgned for the “average man” do not fit women, smaller mean or other persons. Thirty college students (7 females, 8 dominant left handed males and 8 dominant right handed males) squeezed alternately with both dominant and non-dominant hands twice a Lafayette dynamometer at 5 grip span settings. The results indicated that grip strength increased with increasing grip span up to the preferred grip span. Female grip strength was 53% of male grip strength. The non-dominant hand produced 89.6% of dominant hand grip strength. More interestingly both male and female left handers exihibited nearly identical grip strengths for both hands, leading one to suspect that left handed people are being forced to adapt to a right handed world. It thus appears that certain female workers may be at a double disadvantage with gender and left handedness reducing grip strength by 2/3. However, tools and equipment can be modified to accommodate weaker individuals.

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Amosun, Seyi-Ladele, Alice Moyo, and Carmelo Matara. "Trends in Hand Grip Strength in Some Adult Male Zimbabweans." British Journal of Occupational Therapy 58, no. 8 (August 1995): 345–48. http://dx.doi.org/10.1177/030802269505800808.

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The Department of Occupational Health and Safety at Work, of the Ministry of Labour, Manpower Planning and Social Welfare in Zimbabwe, has consistently reported an appreciable number of occupational injuries involving the hand. In the central hospitals, routine hand assessment includes range of movement, sensory and muscle strength tests, as well as hand grip strength tests. Differences had been observed in the hand grip measurements obtained when compared with norms developed by Kellor et al (1971). The aim of this study was, therefore, to assess the trend in the grip strength of a sample of adult male Zimbabweans. Hand grip strength measures for the right and left hands of 204 male Zimbabweans, aged 18–56 years, were taken using a Jamar® dynamometer. The relationship between these grip strength measures and age, height, weight and body mass index was assessed. Grip strength percentage difference between dominant and nondomlnant hands did not obey the 10% rule, which assumes that the dominant hand can be up to 10% stronger than the nondominant hand. Grip strength was negatively related to age but positively related to body weight and height. The need for additional studies to establish normative data for grip strength measurements for use in the clinical situation is Indicated.

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Fouasson-Chailloux, Alban, Pauline Daley, Pierre Menu, Bastien Louguet, Guillaume Gadbled, Yves Bouju, Pierre Abraham, and Marc Dauty. "Hand Strength Deficit in Patients with Neurogenic Thoracic Outlet Syndrome." Diagnostics 11, no. 5 (May 13, 2021): 874. http://dx.doi.org/10.3390/diagnostics11050874.

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Neurogenic thoracic outlet syndrome (NTOS) is a chronic painful and disabling condition. Patients complain about upper-limb paresthesia or weakness. Weakness has been considered one of the diagnostic criteria of NTOS, but objective comparisons to healthy controls are lacking. We compared the grip and the key pinch strengths between NTOS patients and healthy controls. Grip strength was evaluated with a hydraulic hand dynamometer and the key pinch with a pinch gauge. All the patients with NTOS completed a QuickDASH. We included prospectively 85 patients with NTOS, 73% female and 27% male. The mean age was 40.4 ± 9.6. They were compared to 85 healthy subjects, 77.6% female and 22.4% male. Concerning the grip, symptomatic hands of NTOS patients had significantly 30% less strength compared to control hands (p ≤ 0.001), and 19% less strength compared to asymptomatic hands (p = 0.03). Concerning the key pinch, symptomatic hands of patients with NTOS had significantly 19.5% less strength compared to control hands (p ≤ 0.001). Grip and key pinch strengths had a significant correlation with the QuickDASH (r = −0.515 and r = −0.403, respectively; p ≤ 0.001). Patients with NTOS presented an objective hand strength deficit compared to healthy controls. This deficit was significantly correlated to the upper-limb disability. These findings confirm the interest of hand strength evaluation in the diagnostic process of patients with NTOS.

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Fink, Bernhard, Aicha Hamdaoui, Frederike Wenig, and Nick Neave. "Hand-grip strength and sensation seeking." Personality and Individual Differences 49, no. 7 (November 2010): 789–93. http://dx.doi.org/10.1016/j.paid.2010.06.032.

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Mearns, Bryony M. "Hand grip strength predicts cardiovascular risk." Nature Reviews Cardiology 12, no. 7 (June 2, 2015): 379. http://dx.doi.org/10.1038/nrcardio.2015.84.

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Kim, Jin-Su, Moon-Hyon Hwang, and Nyeonju Kang. "Bilateral Deficits during Maximal Grip Force Production in Late Postmenopausal Women." Applied Sciences 11, no. 18 (September 10, 2021): 8426. http://dx.doi.org/10.3390/app11188426.

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The purpose of this study was to investigate bilateral deficit patterns during maximal hand-grip force production in late postmenopausal women. Twenty late postmenopausal and 20 young premenopausal women performed maximal isometric grip force production tasks with dominant and nondominant hands and both hands, respectively. For late postmenopausal women, pulse wave analysis was used for identifying a potential relationship between maximal hand-grip strength and risk factors of cardiovascular disease. The findings showed that late postmenopausal women produced significantly decreased maximal hand-grip strength in dominant and nondominant and bilateral hand conditions compared to those of premenopausal women. Bilateral deficit patterns appeared in late postmenopausal women. For late postmenopausal women, decreased dominant and bilateral hand-grip forces were significantly related to greater bilateral deficit patterns. Further, less maximal hand-grip strength in unilateral and bilateral hand conditions correlated with greater central pulse pressure. These findings suggested that age-related impairments in muscle strength and estrogen deficiency may interfere with conducting successful activities of bilateral movements. Further, assessing maximal dominant hand-grip strength may predict bilateral deficit patterns and risk of cardiovascular disease in late postmenopausal women.

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Ramakrishnan, B., Lisa A. Bronkema, and M. Susan Hallbeck. "Effects of Grip Span, Wrist Position, Hand and Gender on Grip Strength." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 38, no. 10 (October 1994): 554–58. http://dx.doi.org/10.1177/154193129403801003.

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Extensive literature is available which has examined the effects of grip span, wrist position, hand, gender, and anthropometric dimensions on grasp strength, but none have looked at all the factors combined. A thorough understanding of the relations between these various factors would help minimize workplace risks and improve safety. Thus, a study was performed to relate these factors. Twenty subjects (10 male and 10 female) performed maximal exertions with both hands in three wrist positions (45° flexion, 45° extension, and neutral), for three Jamar hand dynamometer spans. Thus, the model was a 2 (gender) x 2 (hand) x 3 (wrist position) x 3 (dynamometer span) x 20 (subjects) mixed effects model with blocking on subjects. Anthropometric dimensions of the subjects' hands were utilized to establish correlation between basic hand dimensions and grasp strength. A stepwise regression analysis established correlation between basic hand dimensions with grasp strength. An R2 value of 0.82 was obtained for the regression equation developed for the largest span (6 cm) of the dynamometer with palm thickness, wrist circumference and forearm length as the independent variables and grasp strength as the dependent variable. For the middle span of 4.7 cm, however, it was seen that palm thickness, wrist circumference, and hand breadth were the only significant variables, with a coefficient of determination of 0.79. Therefore, these four dimensions were chosen for a correlation study with grasp strength. The correlation study revealed that wrist circumference has a reasonably good correlation between the non-dominant hand and the largest span of the handle in the neutral wrist position. Palm thickness and hand breadth yielded significance in two of the three handle spans. The ANOVA showed that all main effects, namely, wrist position, grip span, gender, and hand were significant at the 0.01 level.

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Indira, Eruva, and Rajeswari M. "CORRELATION OF HAND GRIP STRENGTH WITH ANTHROPOMETRIC VARIABLES AND QUANTIFYING HAND GRIP STRENGTH IN CHILDREN OF AGE 3 - 5.5 YEARS WITH MARTIN VIGORIMETER IN INDIAN POPULATION." International Journal of Physiotherapy and Research 3, no. 2 (April 11, 2015): 1006–11. http://dx.doi.org/10.16965/ijpr.2015.124.

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Zafar, Hamayun, Ahmad Alghadir, and Shahnawaz Anwer. "Effects of Head-Neck Positions on the Hand Grip Strength in Healthy Young Adults: A Cross-Sectional Study." BioMed Research International 2018 (July 25, 2018): 1–5. http://dx.doi.org/10.1155/2018/7384928.

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Background.Assessment of hand grip strength is vital for the evaluation of upper limb impairments and effective exercise prescription. Present study primarily aimed to investigate the effect of head-neck positions on the hand grip strength in healthy young adults. Secondarily, the present study compared hand grip strength between left versus right hand in different head-neck positions.Methods.Healthy young adults (age 19 – 30 year; n = 40) participated in this cross-sectional study. Hand grip strength was assessed in three head-neck positions (neutral, rotation left, and rotation right) using the standard adjustable Jamar hand dynamometer.Results. Hand grip strength in both sides (left and right) was greatest in the head-neck neutral position. Hand grip strength measured in head-neck left rotation position displayed the least strength in both sides. There was no significant difference noted between left and right side hand grip strength measured in head-neck neutral and right rotation positions. However, there was a significant difference noted between left and right side hand grip strength measured in head-neck left rotation positions. There was no significant effect of head-neck positions on hand grip strength noted in both sides.Conclusions. Hand grip strength was highest in the head-neck neutral position followed by head-neck rotation to the right. However, head-neck positions did not significantly affect hand grip strength in healthy young adults. Further studies assessing the hand grip strength in different neck positions in patients with neck pain and upper limb dysfunction may have significant implications for the assessment of hand grip strength.

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Desai, Roopa, Rucha Choudhary, and Priyanka Dogra. "A Comparative Study of Grip Strength in Three Different Activities of Daily Living Positions in Geriatric Population." International Journal of Health Sciences and Research 12, no. 4 (April 19, 2022): 269–75. http://dx.doi.org/10.52403/ijhsr.20220431.

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Background & Aim: Geriatric population need to have their grip strength while doing Activities of Daily Living (ADL) in order to reduce the risk of falls. Hence, the aim of this study was to assess grip strength of both hands using three different positions according to ADL as well as to find the correlation between age and Grip Strength in geriatric population. Methods: Forty participants between the age group of 60 to 80 years were evaluated for grip strength using Jamar hand dynamometer in 3 different ADL positions. The average of the three readings were taken for each hand for comparison. Results: Subjects showed greater grip strength in Dominant hand. In position 1, subjects with age group between 60-69 years showed highest mean grip, whereas in age group between 70-80 years highest mean grip was seen in position 3. Also, this study also showed a negative correlation of age & grip strength in both the hands. Conclusion: This study affirms that different joint positions have an effect on grip strength especially elbow & shoulder joint with respect to wrist positions. In conclusion, all three positions can be used to measure grip strength because they affect ADLs. Key words: falls, geriatric population, grip strength, Jamar Dynamometer.

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Dimple, Choudhry. "Relationship of Strength with Pain and Function of Hand in Female Patients with Chronic Rheumatoid Arthritis." Bioscience Biotechnology Research Communications 15, no. 1 (March 25, 2022): 54–59. http://dx.doi.org/10.21786/bbrc/15.1.8.

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Rheumatoid arthritis is a chronic systematic inflammatory disease which is characterised by pain and functional loss in an individual with bilateral involvement of hands, resulting in loss of joint integrity and bony deformities. Grip strength decreases the functional ability and hamper the Activity of daily livings (ADLs). The objective of present study was to assess the relationship between grip strength with key strength, pain and function of rheumatoid hand.ATotal of 103 female Rheumatoid arthritis patients ofage group 20 to 60 years as per inclusion and exclusion criteria were enrolled for this study. Grip strength was measured by Hand dynamometer and key strength was measured by digital pinch meter, pain score of severity and interference were quantified by Brief Pain Inventory(BPI) scale, hand function score was calculated by short form score for assessment and quantification of chronic rheumatoid affection of hand (SF-SACRAH).There was a significant positive correlation between right hand Grip strength with key strength of right hand (r= .559, p<0.01) and hand function score (r= -.230, p<0.05). The positive correlation of left-hand grip strength with left hand key strength (r= .616, p<0.01) and pain severity score (r= -.198=, p<0.05) was also found.The study concludes a positive correlation between grip strength of right hand with key strength and function of right hand in chronic rheumatoid arthritis patients whereas severity of pain shows positive correlation with left hand grip strength. Rheumatoid patients need a better rehab management or their functional status.

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Lim, Seong Hoon, Yeo Hyung Kim, and Jung Soo Lee. "Normative Data on Grip Strength in a Population-Based Study with Adjusting Confounding Factors: Sixth Korea National Health and Nutrition Examination Survey (2014–2015)." International Journal of Environmental Research and Public Health 16, no. 12 (June 25, 2019): 2235. http://dx.doi.org/10.3390/ijerph16122235.

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Background: We investigated population-based data on grip strength, analyzed for demographic factors, and proposed a formula to estimate grip strength that could be generalized to a population with different anthropometric and background characteristics. Methods: This study used a complex, stratified, multistage probability cluster survey with a representative sample of the population. Select household Korean participants (n = 6577) over age 10 who were able to perform daily tasks without issue were included. Grip strength was measured in both hands, alternately, three times using a digital grip strength dynamometer. Results: There was a curvilinear relationship between grip strength and age, and grip strength was higher in males than females (p = 0.001). Hand preference significantly affected grip strength (p = 0.001). Weight and height were positively correlated with strength in both hands (p = 0.001), but waist circumference was negatively correlated with strength in both hands (p = 0.001). The intensity of occupational labor did significantly affect grip strength in both hands (p = 0.001). The formulas for estimating grip strength of each hand are presented as main results. Conclusions: To determine normative data on grip strength, we may consider factors such as occupations with different physical demands, underlying medical conditions, anthropometric characteristics, and unmodifiable factors such as age and sex.

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Tonak, Hasan Atacan, Ozgun Kaya Kara, and Sedef Sahin. "Correlation of hand functionality and grip strengths with anthropometric measurements." Work 69, no. 1 (May 26, 2021): 187–95. http://dx.doi.org/10.3233/wor-213468.

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BACKGROUND: Using objective anthropometric measurement data and anthropometric ratios, grip strength and hand functionality can be evaluated. OBJECTIVE: The aim of this study was to obtain anthropometric measurements regarding the forearm and hand, to evaluate the hand functionality in addition to hand and finger grip strengths, and to investigate the correlation between these values. METHODS: One-hundred eight-four subjects between 18 and 25 years were included in the study. Forearm and hand anthropometric measurements and ratios were measured. Hand and lateral grip strengths were evaluated. Jebsen Taylor Hand Function Test (JTHFT) was used to assess hand functionality. RESULTS: A statistically weak and consistently negative correlation between the ratios of forearm length to forearm/wrist circumferences and the ratio of hand length to metacarpal head circumference and hand-lateral grip strengths was found. There was a statistically weak and consistently negative correlation between these ratios and the subtests of JTHFT. It was shown that there was a statistically weak–moderate positive correlation between the hand-lateral grip strengths and JTHFT subtests. CONCLUSIONS: In conclusion, when evaluating grip strength and hand functionality, forearm and hand anthropometric measurements and ratios, which could affect the results, should be considered.

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Manoharan, Vengata Subramani, Subramanian Ganesh Sundaram, and Jacob Isaac Jason. "FACTORS AFFECTING HAND GRIP STRENGTH AND ITS EVALUATION: A SYSTEMIC REVIEW." International Journal of Physiotherapy and Research 3, no. 6 (December 11, 2015): 1288–93. http://dx.doi.org/10.16965/ijpr.2015.193.

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Talupuru, Pavan K., Sivachidambaram Kulandaivelan, Haripriya U, and Varun Singh. "EFFECT OF BMI ON HAND GRIP STRENGTH IN ELITE CRICKET PLAYERS." International Journal of Physiotherapy and Research 4, no. 5 (October 11, 2016): 1696–700. http://dx.doi.org/10.16965/ijpr.2016.167.

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D. Belka, Rebecca, and Mark DeBeliso. "Hand Grip Strength and Older Adults: Is Hand Grip Strength Associated with Self-Efficacy in Older Adults?" Journal of Physical Activity Research 4, no. 1 (January 24, 2019): 41–46. http://dx.doi.org/10.12691/jpar-4-1-4.

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Nor Julahah J, Ummi Noor Nazahiah A, M. Asyraf CD, Norashiken O, and Ahmad Faizal Salleh. "INVESTIGATION ON YOUNG ADULT HAND GRIP STRENGTH." Malaysian Journal of Public Health Medicine 20, Special1 (August 1, 2020): 45–50. http://dx.doi.org/10.37268/mjphm/vol.20/no.special1/art.667.

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It is believed that exposure to whole-body vibration (WBV) may increase seated occupant drowsiness and seated. The purpose of this paper is to investigate the strength of the hand grip among the young adults in Malaysia. Also, to examine the correlation between anthropometry factors such as hand length (HL), hand breadth (HB), wrist circumference (WC) and body mass index (BMI) with average full hand grip strength of young adults. 40 Malaysian young adults with equal females and males and the range age of 23 to 28 years old voluntarily basis participated in this study. Three experiments were conducted in sitting position according to American Standard Hand Therapist (ASHT) with 45º, 90o and 135o of hand flexion using dynamometer. The results show the significant different full hand grip strength between Malaysian young adult females and females, the difference full hand grip strength for different hand flexion angles in sitting position and difference correlations between anthropometry factors and full hand grip strength for both young adult males and females.

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LEACH, W. J., C. ESLER, and T. D. SCOTT. "Grip Strength following Carpal Tunnel Decompression." Journal of Hand Surgery 18, no. 6 (December 1993): 750–52. http://dx.doi.org/10.1016/0266-7681(93)90237-a.

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To monitor the effect of open carpal tunnel decompression on grip strength in the hand, a prospective study was made of 25 patients undergoing a total of 31 operations. Hand grip, key pinch and pulp-to-pulp pinch strengths were measured pre-operatively and at regular intervals until 1 year following operation. At that time there was no significant difference in the hand grip and pulp-to-pulp pinch strengths compared to their pre-operative values, but the key pinch in females showed a marginally significant reduction ( P=0.04) compared to the pre-operative value.

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Razzaque, Laila, Md Ashrafuzzaman, and Monjurul Hakim. "Study of Age-Related Finger Span and Hand Grip Strength of Adult Female Garment Workers in Bangladesh." Chattagram Maa-O-Shishu Hospital Medical College Journal 20, no. 1 (May 25, 2021): 62–66. http://dx.doi.org/10.3329/cmoshmcj.v20i1.53590.

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Background: Age related hand anthropometry is important for the effective designing of dimensionally compatible hand tools, gloves, machine access spaces and hand-held devices. The present study was designed to measure and compare finger spans and the hand grip strength of both hands of adult female garment workers of different age groups in Bangladesh and to establish correlation between finger spans and the hand grip strength of same hand. Materials and methods: The study was a descriptive, observational and cross sectional in nature with some analytic component; carried out in the Department of anatomy, Chittagong Medical College, Chattogram, from January 2015 to December 2015. A purposive non random convenient sampling was done to select 300 female garment workers, age ranging from 21-35 years. Hand grip strength and 5 finger spans were measured. ANOVA test was performed to correlate of finger spans and hand grip strength of different age groups. Results: Difference of hand grip strength with age showed significant in both hands. Difference of finger spans with age showed non-significant. There was positive correlation between finger spans and hand grip strength of the same hand. Conclusion: Study of age related anthropometric measurements of hand can play an important role to design same workplace, same hand tools, and same access spaces for the hand of the age group (21-35) years of adult female garment workers in Bangladesh and increase the usage of human resources. Chatt Maa Shi Hosp Med Coll J; Vol.20 (1); January 2021; Page 62-66

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FRANSSON, CHARLOTTE, and JØRGEN WINKEL. "Hand strength: the influence of grip span and grip type." Ergonomics 34, no. 7 (July 1991): 881–92. http://dx.doi.org/10.1080/00140139108964832.

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Fransson, Charlotte, and Jørgen Winkel. "Grip strength and leg design of power grip hand tools." Journal of Biomechanics 22, no. 10 (January 1989): 1012. http://dx.doi.org/10.1016/0021-9290(89)90245-5.

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Özkan, Sezai, Femke M. A. P. Claessen, Kyle R. Eberlin, Sang-Gil P. Lee, David C. Ring, and Ana-Maria Vranceanu. "The Effect of Priming With Questionnaire Content on Grip Strength in Patients With Hand and Upper Extremity Illness." HAND 12, no. 5 (December 20, 2016): 484–89. http://dx.doi.org/10.1177/1558944716681975.

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Background: Grip strength is a performance-based measure of upper extremity function that might be influenced by priming (the influence of a response to a stimulus by exposure to another stimulus). This study addressed the influence of questionnaire content on performance measurements such as grip strength between patients who complete the standard Pain Catastrophizing Scale (PCS) compared with patients who complete a positively adjusted PCS. Methods: Between June 2015 and August 2015, we enrolled 122 patients who presented to 3 hand surgeons at 3 outpatient offices. They were randomized to 2 groups: the control group, which completed the PCS, and the intervention group, which completed a positively phrased version of the PCS. Before and after completion of the questionnaire, we measured each patient’s grip strength 3 times by alternating between hands. Two patients were excluded after participation. We calculated both the preintervention and postintervention mean and maximum grip strengths. Results: There was no significant difference between groups on mean or maximum grip strength before completion of the questionnaires. There was a greater improvement in mean grip strength of both hands in the intervention group compared with the PCS group. This improvement was statistically significant in the affected hand. The maximum grip strength showed a statistically significant greater improvement in both hands in the positive PCS group compared with the control group. Conclusions: Positive priming through a questionnaire leads to an increase in mean and maximum grip strength when compared with the standard questionnaire that uses negative terms rather than positive.

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Heidy, Heidy, Tena Djuartina, and Robi Irawan. "THE CORRELATION OF HAND GRIP STRENGHT WITH FOREARM AND HAND ANTHROPOMETRY AND BODY MASS INDEX." Damianus Journal of Medicine 18, no. 1 (February 5, 2021): 1–7. http://dx.doi.org/10.25170/djm.v18i1.2189.

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Introduction: An individual’s overall muscle strength is commonly assessed by a power grip measurement, a reliable indicator of functional capacity and physical condition. The development of muscle parallels the changes of body composition during growth. Aim of this study is to examine the correlationship between hand grip strength and anthropometric. Methods: This cross-sectional study involved 76 male students of Dhammasavana School, aged between 12 – 16 years old, North Jakarta. Hand grip strength was examined using a digital dynamometer on the dominant side. Statistical analysis was computed using SPSS ver. 15.0 program with Spearman correlations test. Significance was set at p<0.05. Results: Dominant hand grip strength was found to have significant (p<0.05 - 0.001) positive correlation with height (r=0.612), lower arm muscle-and-bone cross-sectional circumference and area (CSA) (r=0.553 and r=0.553 respectively), hand length (r=0.548), forearm length (r=0.540), age (r=0.520), weight (r=0.416), and forearm girth (r=0.376). Conclusion: No significant correlation between grip strength and body mass index was found. Positive correlations between the variables mentioned above conclude that the higher the value of the anthropometric measurements, the greater the strength generated in a power grip.

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Wu, Kitty, Romeet Ahluwalia, Shrikant J. Chinchalkar, Joshua I. Vincent, Robert S. Richards, and Nina Suh. "The Effect of Simulated Total Distal Interphalangeal Joint Stiffness on Grip Strength." Plastic Surgery 26, no. 3 (April 23, 2018): 160–64. http://dx.doi.org/10.1177/2292550318767925.

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Purpose: Production of a functional grip pattern requires the concerted action of numerous structures within the hand. This study quantifies the effect of total distal interphalangeal joint (DIPJ) stiffness to grip strength. Methods: Fifty (25 men, 25 women, 100 hands) individuals with a mean age of 38 years (range: 17-69 years) were recruited. Exclusion criteria included history of previous upper limb injury, neuropathies, or systemic disease. Custom thermoplastic orthoses were used to splint participants’ DIPJ in full extension simulating stiffness. Grip strength before and after splinting was measured using a calibrated Jamar dynamometer. Data were analyzed using paired and independent sample t tests and 2 × 2 repeated-measures analysis of variance with hand dominance and configuration (splinted or unsplinted) as within-subject factors. Results: Restriction of DIPJ flexion led to a 20% decrease in grip strength ( P < .001). There was no significant difference in this decrease between dominant and non-dominant hands. Univariate analysis did not demonstrate any interaction between hand dominance and testing configuration. Post hoc analysis revealed no statistical difference in baseline grip strength between the dominant and non-dominant hands. Furthermore, men had significantly stronger grip strength than women in all configurations ( P < .001). Conclusions: Flexion at the DIPJ contributes significantly to grip strength, and stiffness at this joint greatly limits functional capabilities of the hand. This necessitates the need for targeted rehabilitation in DIPJ injuries to minimize adverse effects on grip strength.

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Eler, Nebahat, and Serdar Eler. "2D: 4D, Lateralization and Strength in Handball Players." Journal of Education and Training Studies 6, no. 5 (April 18, 2018): 170. http://dx.doi.org/10.11114/jets.v6i5.3220.

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Lateralization, which is also known as hand preference, and 2D:4D finger ratio is a sign of prenatal testosterone and known to be associated with strength. The aim of this study is to investigate the relationship between 2D: 4D, lateralization and hand grip strength in relation to hand and forearm that are thought to be effective in handball in elite handball players. 67 female and 67 male elite players participated in this study. The height, weight, body-mass index and hand preference of these athletes have been identified and 2D: 4D finger measurements and hand grip strength tests were performed. When identifying the preferences regarding lateralization, the hand distribution preference was determined by the Oldfield questionnaire and evaluated using the Geschwind score. After photocopy images of the two hands of the athletes were taken, their finger lengths were measured Hand grip strength was determined by a Jamar hydraulic dynamometer. Strong correlation was found especially between 2D: 4D and dominant hand grip strength in male and female elite handball players. The ratio of left-handedness due to the positions of players during the game among male and female athletes has been found to be higher than that of the general population. With regard to gender, 2D: 4D was found to be lower in males than females but hand grip was found to be higher in males than females. Besides, a significant correlation between height and BMI with 2D:4D, sport age, height, body weight and hand grip strength was found. This study emphasizes the importance of 2D: 4D, handgrip strength and hand preference in handball.

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Johannsson, Gudmundur, Gunnar Grimby, Katharina Stibrant Sunnerhagen, and Bengt-Åke Bengtsson. "Two Years of Growth Hormone (GH) Treatment Increase Isometric and Isokinetic Muscle Strength in GH-Deficient Adults*." Journal of Clinical Endocrinology & Metabolism 82, no. 9 (September 1, 1997): 2877–84. http://dx.doi.org/10.1210/jcem.82.9.4204.

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Abstract GH deficiency in adults is associated with reduced muscle mass and muscle strength. The objective of this trial was to follow the effect of 2 yr of GH treatment in GH-deficient adults on muscle performance in relation to a reference population. Knee extensor and flexor strengths for isometric and isokinetic concentric muscle strength were measured using a Kin-Com dynamometer. Hand-grip strength was measured in both hands. The fatigue index was calculated as the percent reduction in peak torque at 50 repeated isokinetic knee extensions. Superimposed, single twitch electrical stimulation was performed. The GH-deficient subjects had lower isometric knee extensor, knee flexor, and hand-grip strength than the reference population. Two years of GH treatment increased and normalized the mean isometric knee extensor and flexor strengths. The concentric knee flexor and extensor strength at an angular velocity of π rad/s increased, as did the concentric knee flexor strength at an angular velocity of π/3 rad/s. The increase in muscle strength was more marked in younger patients and in patients with lower initial muscle strength than predicted. Quadriceps endurance decreased, whereas the effect of superimposing single twitches on isometric contraction and hand-grip strength was unaffected by the GH treatment. Two years of GH therapy in GH-deficient adults increased and normalized isokinetic and isometric muscle strength studied in proximal muscle groups. Hand-grip strength and the degree of lack of maximal motor unit activation on voluntary isometric knee extensor force did not change. The dynamic local muscle fatigue index decreased.

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Logue, Rachel, Susan Brown, Rebecca Hasson, and Matthew Davis. "Reliability of Grip Strength as a Predictor of Hand Limitation Among U.S. Older Adults: How Good is Grip Strength?" Innovation in Aging 5, Supplement_1 (December 1, 2021): 897. http://dx.doi.org/10.1093/geroni/igab046.3257.

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Abstract Grip strength is commonly used to assess hand function in older adults and is associated with health outcomes including muscle strength, cognition, and mortality. However, the degree to which grip strength predicts an actual hand limitation is unknown. This study evaluated grip strength as a predictor of hand limitations associated with activities of daily living. Using the 2011-14 National Health and Nutrition Examination Survey (NHANES), we selected five self-reported hand-related functional limitations to classify older adults reporting one or more limitations versus those with no limitations. We identified 2,064 older adults (age≥65), 31% of whom reported a hand-related limitation. Odds ratios were used to assess the association between grip strength quartile and the likelihood of a hand limitation while controlling for sex, race/ethnicity, education level, income, and pain. Receiver operator curves were used to evaluate the degree to which grip strength discriminates between those with limitations versus those without. Older adults with very low grip strength (lowest quartile) were more likely to have at least one limitation (OR:6.1, 95% CI:3.2,11.8) than those with high grip strength (highest quartile). However, receiver operator curves suggested grip strength only modestly discriminated hand limitations (area under curve:0.71). While self-reported hand limitations were associated with lower grip strength, it was a relatively poor predictor of hand impairments among older adults. This study suggests grip strength may not predict hand function as well as previously thought. Better assessments are needed to adequately evaluate upper extremity impairments to help older adults maintain functional independence.

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Alahmari, Khalid A., S. Paul Silvian, Ravi Shankar Reddy, Venkata Nagaraj Kakaraparthi, Irshad Ahmad, and Mohammad Mahtab Alam. "Hand grip strength determination for healthy males in Saudi Arabia: A study of the relationship with age, body mass index, hand length and forearm circumference using a hand-held dynamometer." Journal of International Medical Research 45, no. 2 (February 23, 2017): 540–48. http://dx.doi.org/10.1177/0300060516688976.

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Objectives To determine whether age, body mass index (BMI), hand length and forearm circumference were predictive of hand grip strength in healthy Saudi Arabian adult males. Methods This cross-sectional descriptive study recruited healthy adult male volunteers. Their anthropometric characteristics including age, BMI, hand length and forearm circumference were measured using routine techniques. Hand grip strength was assessed using a Jamar® Hydraulic Hand Dynamometer. The data were analysed using Pearson correlation coefficient ( r) as well as by a stepwise multiple linear regression analysis. Results The study included 116 healthy males who satisfied the inclusion criteria. A Pearson correlation coefficient matrix demonstrated that all the four measures, age, BMI, hand length and forearm circumference, were significantly correlated with hand grip strength. Age had an inverse correlation with hand grip strength. The anthropometric measures of hand length, age and forearm circumference accounted for 44.2% (R2 0.442) of the variation of the hand grip strength. Conclusion Hand length, age and forearm circumference significantly impacted on hand grip strength in Saudi Arabian healthy adult males.

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Rawat, S., L. R. Varte, I. J. Singh, S. Choudhary, and S. Singh. "Anthropometry based prediction of dominant hand grip strength in Indian office going females." Asian Journal of Medical Sciences 7, no. 6 (October 31, 2016): 58–62. http://dx.doi.org/10.3126/ajms.v7i6.15197.

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Background: Physical strength can be measured by means of hand grip strength. It is of great use as a functional index of nutritional status.Aims and Objectives: Physical strength can be measured by means of hand grip strength. It is of great use as a functional index of nutritional status. Association of hand grip strength with other variables is studied in order to predict the strength outcomes and to study the effect of factors that can influence hand grip strength performance.Materials and Methods: In the present study the correlations of dominant hand grip strength and anthropometric and body composition variables namely, height, weight, forearm length, arm length, hand breadth, body mass index (BMI), and fat mass in randomly selected 375 unrelated, normal, healthy Indian office going females of age 20-60 years with mean height and weight of 154.12 ± 5.94 cm and 59.86 ± 10.94 kg respectively has been studied.Result: Hand grip strength of the females varied from 17 kg to 32 kg with a mean of 23.86 ± 2.74 kg. The comparison of age, height, weight, forearm length, arm length, hand breadth, and fat mass with the hand grip strength showed good correlation (p<0.01). The best fit model for handgrip prediction when age, height, weight and hand breadth for this population were considered is Hand Grip = -12.260-0.13*Age+0.16*Height+0.13*Weight+1.02*Hand breadth.Conclusion: It may be concluded that hand grip strength has close association with the anthropometric measurements and body composition variables and using these parameters grip strength can be predicted in Indian office going females.Asian Journal of Medical Sciences Vol.7(5) 2016 58-62

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Mat Jais, Ita Suzana, Nivedita Vikas Nadkarni, Yee Sien NG, Dennis Chuen Chai Seow, and Ting Hway Wong. "Investigating the functional grip strength of elderly fallers in Singapore." Proceedings of Singapore Healthcare 28, no. 4 (August 19, 2019): 252–58. http://dx.doi.org/10.1177/2010105819869361.

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Background: Static grip strength has been a reliable method for assessing the functional capacity of the individual and can be a useful marker for identifying elderly people at risk of functional deterioration leading to a fall. However, static grip strength alone may not represent the true maximum strength that an individual could exert in his/her daily life, especially if the task requires simultaneous forces from gripping and a forearm twisting action, which is termed as functional isometric grip strength. Hence, the objectives of this study were to determine the differences in the fallers’ grip strengths at static-neutral grip position and during isometric forearm pronation/supination, as well as the differences between the maximum and sustained isometric grip strengths. Methods: Data were analysed from 31 elderly people (11 males and 20 females) aged 70 and over. Using a custom-made hand strength measurement device, three measurements were taken: (1) grip strength in neutral forearm position; (2) grip strength during isometric forearm pronation; and (3) grip strength during isometric forearm supination. Results: Elderly fallers could only achieve approximately 60%–80% of the maximum normative strength. Additionally, it was found that their functional isometric grip strengths were generally weaker than their static maximal grip strength, especially during isometric supination as either maximum or sustained isometric supination grip strengths (Dominant hand: 10.6 kg and 8.5 kg, respectively (males); 6.0 kg and 4.4 kg, respectively (females)). Conclusion: Elderly fallers are weaker when their grip is subjected to additional torque, endurance or both. Hence, these findings have potential implications for designing better screening tools for the geriatric population.

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Li, Ke, David J. Hewson, Jacques Duchêne, and Jean-Yves Hogrel. "Predicting maximal grip strength using hand circumference." Manual Therapy 15, no. 6 (December 2010): 579–85. http://dx.doi.org/10.1016/j.math.2010.06.010.

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Higgins, Susie C., Jo Adams, and Rodney Hughes. "Measuring hand grip strength in rheumatoid arthritis." Rheumatology International 38, no. 5 (April 6, 2018): 707–14. http://dx.doi.org/10.1007/s00296-018-4024-2.

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Malhotra, Rahul, Md Ismail Tareque, Ngiap Chuan Tan, and Stefan Ma. "Association of baseline hand grip strength and annual change in hand grip strength with mortality among older people." Archives of Gerontology and Geriatrics 86 (January 2020): 103961. http://dx.doi.org/10.1016/j.archger.2019.103961.

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Chang, Ho, Chih-Hao Chen, Tung-Sun Huang, and Chun-Yen Tai. "Development of an integrated digital hand grip dynamometer and norm of hand grip strength." Bio-Medical Materials and Engineering 26, s1 (August 17, 2015): S611—S617. http://dx.doi.org/10.3233/bme-151352.

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Pazderka, M. Peggy, Melissa Henderson, and M. Susan Hallbeck. "Gender, Grip Span, Anthropometric Dimensions, and Time Effects on Grip Strength and Discomfort." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 40, no. 13 (October 1996): 707–11. http://dx.doi.org/10.1177/154193129604001327.

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The objective of this study is to examine the relationship among anthropometric dimensions, grip span, discomfort, gender, and grip strength. The 24 volunteer subjects (12 males, 12 females) performed five grips squeezing their hardest for 2 minutes at each of the five grip spans on the Jamar grip dynamometer. The grip strength was recorded using the UPC software and then averaged for each of the 30 second intervals. The data was analyzed using ANOVA, post-hoc (Tukey) hypothesis tests, and regression. In the ANOVA analysis gender, grip span, time, and the interactions of gender-grip span, grip span-time, and time-gender were determined to be the significant effects. In all four of the 30 second intervals, average grip strength was significantly higher for males than females. Female average grip strength was found to be 70% of male average grip strength. The post-hoc (Tukey) tests showed that grip spans 3, 4, and 2 were significantly higher than grip spans 5 and 1. The anthropometry of several segments of the hand were found to be important predictors of grip strength and discomfort in the stepwise regressions. Grip span 4 had the highest average severity of discomfort, while grip span 1 had the most areas of the hand experiencing discomfort.

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Desai, Roopa, Jagruti v, and Shilpa Khandare. "Association of Age with Hand Grip Strength, Pinch Strength and Reaction Time in Gynaecologists and Obstetricians." International Journal of Health Sciences and Research 11, no. 12 (December 14, 2021): 157–61. http://dx.doi.org/10.52403/ijhsr.20211221.

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According to scientific literature, evidence of relationship exists between dexterity and age. With increasing age, the performances get slower, less smooth, less coordinated and less controlled. Lesser the reaction time, better is the achievement seen sports, music, driving, academics and also in day-to-day activities. We can always predict reacting abilities of an individual based on his reaction time. In case of surgeons, this helps us to identify the surgeons with prolonged reaction time and identify the cause. Some studies suggest that there is direct relationship that exists between muscle strength and increased age. Aim: This study aimed in assessing the association of age with hand grip strength, pinch strength and reaction time in Gynaecologists and Obstetricians. Methods: This study involved 30 Gynaecologists and Obstetricians. Hand grip strength, Pinch Grip Strength and Reaction time were assessed on both dominant and non- dominant hand. Results: The result showed positive correlation of age with hand grip strength and pinch strength and negative correlation of age with reaction in Gynaecologists and Obstetricians. Conclusion: There is low association of age with hand grip strength and pinch strength, there is reduction in reaction time as age increases in Gynaecologists and Obstetricians. Key words: Age, Hand grip strength, Pinch Grip Strength, Reaction time, Gynecologists.

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Solanki, Disha Vallabhbhai, and Neela Soni. "Correlation between Hand Grip Strength and Core Muscle Activation in Physical Therapists of Gujarat." International Journal of Health Sciences and Research 11, no. 5 (May 7, 2021): 82–87. http://dx.doi.org/10.52403/ijhsr.20210512.

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Background: Hand grip strength is of great significant parameter in evaluation of hand function and it is most reliable clinical assessment tool of human strength. It is very useful in various professions where people must work with their hand, like physiotherapy. The core serves at the center of functional kinetic chain in alternative medicine world; the core has been referred to as the “powerhouse”, the foundation or engine of all limb movements. So the purpose of this study is to find out correlation between hand grip strength and core muscle activation in physical therapists of age group 18 to 25. Methods: Two hundred physical therapists volunteered to participate in this study were assessed for height, weight, BMI, the hand grip strength of the dominant hand and the non-dominant hand and core muscle activation. The hand grip strength was assessed with Jamar dynamometer and the core muscle activation was assessed with Pressure Biofeedback Unit. Results: Pearson’s correlation coefficient was used. The results of this study shows that there was weak positive correlation(r=0.42) between the hand grip strength of dominant hand and non-dominant hand with core muscle activation. Conclusion: This study shows weak correlation between the hand grip strength with core muscle activation. Key words: Hand grip strength, Hand dynamometer, Core muscle strength, Pressure Biofeedback Unit.

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Shin, So-Yeon. "Relationship between Hand Force and Chest Compression in Manikin Study." Fire Science and Engineering 34, no. 5 (October 31, 2020): 93–97. http://dx.doi.org/10.7731/kifse.5f67ca03.

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A C-shaped bend is prevalent in long, thin fingers when administering the two-finger compression technique in infant cardiac arrest, making vertical chest compressions difficult. This study was a mannequin experiment, which investigated the effect of grip and back muscle strengths on the outcome of infant chest compressions. Twenty 4th year paramedicine students who had completed 15 weeks of cardiopulmonary resuscitation (CPR) training were recruited as subjects in this study. The results demonstrated greater grip strength in men than in women. Additionally, grip strength, height, and sex were found to have significant correlations with the depth of chest compressions. The chest compression depth decreased over time, using the two-finger compression technique, while the rate of incomplete release increased. Grip strength was observed to affect the ability to maintain compression depth over time, demonstrating the need for a program to improve basic fitness.

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Sezer, Süreyya Yonca. "The Impact of Hand Grip Strength Exercises on the Target Shooting Accuracy Score for Archers." Journal of Education and Training Studies 5, no. 5 (March 26, 2017): 6. http://dx.doi.org/10.11114/jets.v5i5.2194.

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The purpose of this research is to investigate the impact of hand grip strength exercises on the target shooting accuracy score for male archers. Thirty male archers (n1=15, 19.85±1.35, n2=15 19.71±1.31) ranging 18-20 years old were included in our study from the archery team of the city of Elazig, department of youth sports.The experiment group has been through our exercise program one hour/day, three days/week for a duration of 12 weeks. Same tests and measurements (age, height, weight, heart beat rate at rest, heart beat rate at exercise, hand grip strength, sit-up, pull-up, push-up, target shooting accuracy test) have been performed for assessment during the week before and during the week after the exercise program.Kruskal Wallis H test and t test are used to analyze the variation in the strength test results. Regression analysis is used to study the impact of strength exercises on the target shooting accuracy scores. Statistically, we observe that the hand strength grip exercise performed on the experiment group has significant impact on the hand grip strengths (before exercise 63.21±5.81, after exercise 75.12±5.80) (p=0,001) and the target shooting accuracy scores (before exercise 58.21±4.72, after exercise 69.12±3.24) (p=0,001).Finaly, we can conclude that the hand grip strength and its exercise have significant value in archery and that hand grip strength exercise is one of the factors that improve the target shooting accuracy scores positively.

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Toktas, Hasan, Umit Dundar, Özge Yilmaz Kusbeci, Alper Murat Ulasli, Ozgur Toy, and Serdar Oruc. "FPL tendon thickness, tremor and hand functions in Parkinson’s disease." Open Medicine 11, no. 1 (January 1, 2016): 16–20. http://dx.doi.org/10.1515/med-2016-0004.

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AbstractIntroductionIn Parkinson’s disease (PD), a resting tremor of the thumb may affect the flexor pollicis longus (FPL) and influence hand functions. We investigated the relationship between FPL tendon thickness and hand function in PD patients and compared these characteristics with those in healthy controls.MethodsThe hand grip and pinch strengths were measured. The participants completed the Duruöz hand index, the Sollerman’s hand function test, and the Nine Hole Peg Test. The thickness of the FPL tendon was measured using ultrasonographyResultsThe FPL tendon was thicker in PD patients but was not associated with tremor severity. In PD patients, despite functional performance of the hands are impaired and grip strength is decreased, pinch strengths are preserved. FPL thickness was not correlated with grip and pinch strengths.ConclusionThe thicker FPL tendon may be associated with greater pinch and grip strengths and manual dexterity in healthy individuals. The presence of tremor is associated with a thicker FPL tendon.

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Hsi Liao, Kun. "The Effect of Grip Span on Hand-Gripping Control Strength." Advanced Engineering Forum 10 (December 2013): 207–13. http://dx.doi.org/10.4028/www.scientific.net/aef.10.207.

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The economic developments and industrial progressions, the automatic operations were getting more wide-spread. However, currently in various operation occasions, the workers are still required to face how to operate all kinds of hand tooling and equipments. In the industrial cases, there were many opportunities to use hand grip strength to operate machines. Hand grip strength has received increasing attention from industrial engineers and ergonomic researchers. The relation between hand grip strength and tools grip span was important issues in ergonomics. Occasionally, it was little research to conduct. This study aims at exploring the relationship of tools grip span and hand grip strength. Seventy two subjects rose from volunteers participators, including 29 males and 43 females. Dependent variables were maximum volitional contraction and hand gripping control (HGC-70%, target value 70% MVC). Three different diameters of grip span were significance differences in maximum volitional contraction and hand gripping control. The study finds that the best diameter of tools grip span was 47.6 mm. The finding will be served as a reference for task design, instrument design as well as for disease protected for industrial staffs.

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Okumus, Muyesser, Nurullah Okumus, Figen Gokoglu, Z. Rezan Yorgancioglu, M. Aysin Tasar, and Yildiz Dallar. "THE RELATIONSHIP BETWEEN HAND GRIP STRENGTH AND HAND BONE MINERAL DENSITY IN CHILDREN WITH INSULIN DEPENDENT DIABETES MELLITUS." Journal of Musculoskeletal Research 10, no. 02 (June 2006): 83–88. http://dx.doi.org/10.1142/s0218957706001741.

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We thought that grip strength in patients with IDDM would be associated with hand BMD of patients and we thought that patients with IDDM have lower hand BMD than normal subjects.Therefore in this study, the evaluation of the relationship between hand grip strength and hand bone mineral density in healthy children and in children with insulin dependent diabetes mellitus was studied. The hand grip strength, hand and axial bone mineral density of patients were also compared to age-matched healthy controls. We studied 31 consecutive outpatients with insulin dependent diabetes mellitus defined in accordance to the World Health Organization criteria, who attended to the diabetic outpatient clinic. Thirty two healthy children were included as control group. There were no differences in the age, body mass index, bone age, serum Ca and P levels between the diabetic patients and the controls (p > 0.05). There were no significant differences between the groups in hand grip strength, total hand and axial bone mineral density (p > 0.05). There were significant correlations between hand grip strength and hand bone mineral density r = 0.824, p = 0.000), axial bone mineral density (r = 0.714, p = 0.000), bone age (r = 0.830, p = 0.000) and duration of insulin dependent diabetes mellitus in the diabetic group (r = 0.463, p = 0.009). When linear multiple regression analysis was performed hand grip strength and bone age were independent predictors of hand BMD (p < 0.05). We found that hand grip strength significantly correlated with the hand and axial bone mineral density in patients with insulin dependent diabetes mellitus. We suggest that strengthening exercises should be encouraged to increase bone mineral density in these patients.

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Yan, Jin H., and John H. Downing. "Effects of Aging, Grip Span, and Grip Style on Hand Strength." Research Quarterly for Exercise and Sport 72, no. 1 (March 2001): 71–77. http://dx.doi.org/10.1080/02701367.2001.10608935.

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Biju, Dr Soly Mathew, Miss Bertina Motti, Dr Mohamed Fareq Malek, Dr Farhad Oroumchian, and Dr Alison Bell. "Design of Hand Grip System with Focus on Tripod Grip Strength." International Journal of Engineering Trends and Technology 68, no. 6 (June 25, 2020): 28–37. http://dx.doi.org/10.14445/22315381/ijett-v68i6p205s.

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Journal articles on the topic 'Hand. Grip strength'

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