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Journal articles on the topic 'Age-group performance'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Shital, B.Kagale, A.Powar Ankita, and Ms.A.S.Gaikwad. "Reflection on LIC Saving Analysis for TIN Age Group." International Journal of Multidisciplinary Research Transactions 4, no. 6 (2022): 145–60. https://doi.org/10.5281/zenodo.6655783.

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Life Insurance Corporation (LIC) of India is in its 59th year and growing very strong. The paper attempts to focus on the Operating Performance of LIC of India since 2001-2010 , 2011-2020 to 2021-2022 i.e. the period of 22 years. This period is a shift of LIC of India from being into trust in Life insurance sector to competitive life insurance market. The operating performance includes the Total Out go of LIC of India and Total Income of LIC of India. Total Out go Includes Policy Payments, Management expenses, Other out go and Total Income Includes Premium Income, Income from Investments and M

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Findley, Brian W., Lee E. Brown, Michael Whitehurst, Russell Gilbert, and Susanna A. Apold. "Age-Group Performance and Physical Fitness in Male Firefighters." Journal of Strength and Conditioning Research 9, no. 4 (1995): 259–60. http://dx.doi.org/10.1519/00124278-199511000-00012.

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Findley, Brian W., Lee E. Brown, Michael Whitehurst, Russell Gilbert, and Susanna A. Apold. "Age-Group Performance and Physical Fitness in Male Firefighters." Journal of Strength and Conditioning Research 9, no. 4 (1995): 259. http://dx.doi.org/10.1519/1533-4287(1995)009<0259:agpapf>2.3.co;2.

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Nethery, Vince, David Derkacs, Robert Pritchett, and Leo D'Acquisto. "0Age-related Performance Decrements In Elite Age-group Triathletes." Medicine & Science in Sports & Exercise 41 (May 2009): 144. http://dx.doi.org/10.1249/01.mss.0000354997.98756.0d.

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Knechtle, Beat, David Valero, Elias Villiger, et al. "Sex difference in IRONMAN age group triathletes." PLOS ONE 19, no. 10 (2024): e0311202. http://dx.doi.org/10.1371/journal.pone.0311202.

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Background The sex difference in athletic performance has been thoroughly investigated in single sport disciplines such as swimming, cycling, and running. In contrast, only small samples of long-distance triathlons, such as the IRONMAN® triathlon, have been investigated so far. Aim The aim of the study was to examine potential sex differences in the three split disciplines by age groups in 5-year intervals in a very large data set of IRONMAN® age group triathletes. Methods Data from 687,696 (553,608 men and 134,088 women) IRONMAN® age group triathletes (in 5-year intervals from 18–24 to 75+ ye

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Kumartaşlı, Mehmet. "Evaluating Motoric Performance of 10-12 Age Group Football Players." International journal of Science Culture and Sport 2, no. 6 (2014): 101. http://dx.doi.org/10.14486/ijscs181.

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Shrestha, Anisha, Nabin Pandey, Bimla Kumari Gurung, and Sagar Kharel. "Autocratic Leadership and Employee Performance: Moderating Role of Age Group." International Research Journal of MMC 5, no. 2 (2024): 41–52. http://dx.doi.org/10.3126/irjmmc.v5i2.67740.

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Employee performance is crucial for organizational effectiveness, quality and efficiency at the task level. This study aims to provide an inclusive understanding on how autocratic leadership (AL) impacts on employee performance (EP) and whether age moderates this impact. It develops a simple regression model and accesses the dummy indicator regression of the variable used and discusses the result of the analysis of Autocratic Leadership and Employee Performance. This study uses primary data collected through likert scale and analyses using IBM SPSS statistics version 25. Similarly, the seconda

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Lacordia, Roberto C., Erik S. Godoy, Rodrigo G. S. Vale, Carlos A. Sposito-Araujo, and Estélio H. M. Dantas. "Periodized Training Programme and Technical Performance of Age-Group Gymnasts." International Journal of Sports Science & Coaching 6, no. 3 (2011): 387–98. http://dx.doi.org/10.1260/1747-9541.6.3.387.

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Oluwaseun, A. Otekunrin, O. Okon Emmanuel, and of Agricultural Economics and Farm Management Federal University of Agriculture Abeokuta Ogun State Nigeria. Department. "Analysis of Candidates' Performance in Unified Tertiary Matriculation Examinations (UTME) and Post-UTME in the University of Ibadan, Nigeria." Journal of Scientific Research & Reports 14, no. 5 (2017): 1–8. https://doi.org/10.9734/JSRR/2017/34322.

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A major criterion for determining the eligibility of candidates for admission into Nigerian Universities was their performance in UTME and Post-UTME before the scrap of the Post-UTME in 2016. This study was therefore aimed at investigating the performance of students in UTME conducted by Joint Admissions and Matriculation Board (JAMB) and the Post-UTME conducted by the University of Ibadan from 2012/2013 to 2015/2016 with emphasis on gender and age-group performance in the two examinations. The secondary data used for this research comprised of the records of all 100 Level students admitted in

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Zacca, Rodrigo, Argyris Toubekis, Laura Freitas, et al. "Effects of detraining in age-group swimmers performance, energetics and kinematics." Journal of Sports Sciences 37, no. 13 (2019): 1490–98. http://dx.doi.org/10.1080/02640414.2019.1572434.

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Gould, Daniel, Robert C. Eklund, Linda Petlichkoff, Kirsten Peterson, and Linda Bump. "Psychological Predictors of State Anxiety and Performance in Age-Group Wrestlers." Pediatric Exercise Science 3, no. 3 (1991): 198–208. http://dx.doi.org/10.1123/pes.3.3.198.

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This study examined psychological correlates of performance in youth wrestlers by replicating and extending the findings of Scanlan et al. (18). A secondary purpose was to replicate and extend work on antecedents of pre- and postcompetitive state anxiety. A total of 202 youth wrestlers, ages 13 and 14, completed a background questionnaire assessing demographic characteristics, trait anxiety, achievement orientations, and characteristic prematch cognitions prior to participating in an age-group wrestling tournament. Prematch performance expectancies and prematch state anxiety were also assessed

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Karimi, James Mark Ngari, and Enid Busolo. "Influence of age diversity on organizational performance: A case study of AAR group." University Journal 1, no. 3 (2021): XX. http://dx.doi.org/10.59952/tuj.v1i3.23.

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The purpose of the study was to determine the influence of age diversity on organizational performancea case study of AAR group. The study adopted a descriptive research design as it permitted theresearcher to describe the influence of organizational performance and age diversity. The populationfor this study comprised of 90 employees of an insurance company in Nairobi. The study found that therespondents were age diverse, aged between 20 and 55 years. The study also established that themajority of the respondents were males. The study found that the Pearson correlation co-efficient valuefor a

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Makwana, Janhaviben, Surbhi Chaudhari, and Kirit Jadav. "Study of Haemoglobinopathies in Paediatric Age Group by High Performance Liquid Chromatography in a Tertiary Care Hospital in Gujarat." International Journal of Science and Research (IJSR) 13, no. 9 (2024): 755–57. http://dx.doi.org/10.21275/mr24912165342.

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Mello Fiori, Júlia, Rodrigo Zacca, and Flávio Antônio De Souza Castro. "Training cessation in 12 years old and under Age-Group Swimmers." Revista Andaluza de Medicina del Deporte 15, no. 2 (2021): 43–47. http://dx.doi.org/10.33155/j.ramd.2021.06.004.

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Abstract Objective: to verify if three-weeks of training cessation affects 200 m front crawl performance and kinematics in 12 years old and under age-group swimmers controlling for anthropometric changes. Method: Sixteen age-group swimmers (11 girls and 5 boys, age: 10.2 ± 1.2 y) performed a 200 m front crawl test (T200) (time trial) PRE- and POST three-weeks (off-season), where performance, kinematics and anthropometrics variables were obtained. Results: Height increased ~1.0 cm (CI: 0.70 to 1.3 cm; p < 0.001; d = 0.07). Trivial changes were observed for performance (mean

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Kundert, Alexandra, Pantelis Nikolaidis, Stefania Di Gangi, Thomas Rosemann, and Beat Knechtle. "Changes in Jumping and Throwing Performances in Age-Group Athletes Competing in the European Masters Athletics Championships between 1978 and 2017." International Journal of Environmental Research and Public Health 16, no. 7 (2019): 1200. http://dx.doi.org/10.3390/ijerph16071200.

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The results of master athletes have been used previously to examine the age-related differences in aerobic capacity, however, less research has been conducted on the variation of jumping and throwing performances with aging. Therefore, the aim of the present study of elite master athletes was to investigate (a) the age-related differences in throwing (i.e., discus, hammer, javelin, and shot put) and jumping events (i.e., high jump, long jump, pole vault, and triple jump) in 5-year age-group intervals from 35–39 to 95–99 years of elite master athletes, and (b) the trends in performance and sex

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Saygın, Özcan, Kemal Göral, Halil İbrahim Ceylan, and Sevcan Karacabey. "Investigation of agility performance on 10-12 years soccer players." International Journal of Human Sciences 12, no. 2 (2015): 1912. http://dx.doi.org/10.14687/ijhs.v12i2.3521.

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<p>This research was carried out for investigation of 10-12 age soccer players’ agility performance according to age. 53 male soccer players attended in this research voluntarily. Illinois agility test was used in the assessment of agility performance. Collected data was recorded in SPSS program. One Way Variance Analyze (ANOVA)<strong> </strong>was used for determination of differences in different group soccer players. When difference was discerned among groups, Tukey HSD analyses were used for detecting which groups cause this difference. Significance level was accepted as

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Xu, Chi, Yasushi Makihara, Yasushi Yagi, and Jianfeng Lu. "Gait-based age progression/regression: a baseline and performance evaluation by age group classification and cross-age gait identification." Machine Vision and Applications 30, no. 4 (2019): 629–44. http://dx.doi.org/10.1007/s00138-019-01015-x.

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Ryoo, Hyunji, Seok Ryu, Daejung Kim, Hayun Jeong, Denny Eun, and Sang-Hoon Suh. "Importance of weightlifting performance analysis in anti-doping." PLOS ONE 17, no. 2 (2022): e0263398. http://dx.doi.org/10.1371/journal.pone.0263398.

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We examined the potential roles of the athlete’s performance passport (APP) for doping detection by analyzing the relationship between weightlifting performance and sanction status. For the present study, performance data of ‘not-sanctioned’ (26740 datasets) and ‘sanctioned’ (289 datasets) male athletes were acquired from the website of the International Weightlifting Federation (www.iwf.net). One-way ANOVA, correlation analysis, and t-tests were used to analyze the relationship between athletes’ use of doping and their performances across age and body weight. Athletic performance was signific

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Kapas, Prasenjit, and Asish Paul. "CHANGE OF PERFORMANCE CHARACTERISTICS IN DIFFERENT AGE GROUP OF KHO KHO PLAYERS." International Journal of Advanced Research 10, no. 09 (2022): 504–11. http://dx.doi.org/10.21474/ijar01/15383.

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In India, khokho is one of the oldest and most well-known tag games. The purpose of the study was to compare the physical fitness parameters and anthropometric parameters among the three age groups of Kho-Kho players as physical fitness and anthropometricparameters are the most important factors to execute performance in competitive situation. To accomplish the purpose of the study BMI, Arm length, Foot length, speed, agility and speed endurance were taken as the variables.Toconduct the study total 45girls subjects were selected from three different age group of Kho-Kho. The mean and S.D. of s

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Pizza, F. X., D. Ferris, J. Wygand, J. McGuire, K. Davy, and R. Otto. "UPPER BODY ANAEROBIC TESTS & SWIM PERFORMANCE OF COMPETITIVE AGE GROUP SWIMMERS." Medicine and Science in Sports and Exercise 21, Supplement (1989): S105. http://dx.doi.org/10.1249/00005768-198904001-00624.

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Staub, Ilka, Christoph Zinner, Robert Keig Stallman, and Tobias Vogt. "The consistency of performance among age group swimmers over 8 consecutive years." German Journal of Exercise and Sport Research 50, no. 1 (2019): 123–29. http://dx.doi.org/10.1007/s12662-019-00628-8.

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Sidhu, Jasman, Krithika Sivaramakrishnan, Raymundo Cervantes, et al. "27 Aging Affects Cordoba Naming Test Performance." Journal of the International Neuropsychological Society 29, s1 (2023): 339–40. http://dx.doi.org/10.1017/s1355617723004642.

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Objective:The Cordoba Naming Test (CNT) is a 30-item confrontation naming test developed in Argentina. A common confrontation naming task used in the United States is the Boston Naming Test (BNT). Research shows that age affects BNT performance in the 60-item long form. In fact, studies show that scores on confrontation naming tasks increase in childhood and continue to improve until approximately 40 years of age. However, after this period, scores start to subsequently decline, and especially so after 70 years of age. On the other hand, some studies have reported that older adults maintain hi

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Mustapha, Muhammad Firdaus, Nur Maisarah Mohamad, Ghazali Osman, and Siti Haslini Ab Hamid. "Age Group Classification using Convolutional Neural Network (CNN)." Journal of Physics: Conference Series 2084, no. 1 (2021): 012028. http://dx.doi.org/10.1088/1742-6596/2084/1/012028.

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Abstract Age group classification is a complex task that is used to classify facial images or videos into predetermined age categories. It is an important task due to its numerous applications such as health, security, authentication system, recruitment, and also in intelligent social robots. Convolutional Neural Network (CNN) has recently shown excellent performance in analysing human face images and videos. This paper proposed an age group classification task using CNN that trained and tested with an All-Age Face (AAF) dataset. FaceNet deep learning model that uses CNN was applied in this st

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Gur, Ruben C., Jan Richard, Monica E. Calkins, et al. "Age group and sex differences in performance on a computerized neurocognitive battery in children age 8−21." Neuropsychology 26, no. 2 (2012): 251–65. http://dx.doi.org/10.1037/a0026712.

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Harrington, Ann M. "The Effect of Implied Performer Age and Group Membership on Evaluations of Music Performances." Update: Applications of Research in Music Education 36, no. 2 (2017): 5–12. http://dx.doi.org/10.1177/8755123317725726.

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This study examined the effects of implied performer age and group membership on listeners’ evaluations of music performances. Undergraduate music majors ( n = 23), nonmusic majors ( n = 17), and members of a New Horizons ensemble ( n = 16) were presented with six 30-second excerpts of concert band performances. Excerpts were presented to all respondents in three implied performer age conditions: audio-only (no implied age), audiovisual presentations that featured digital images of middle school concert bands, and audiovisual presentations that featured digital images of older adult concert ba

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Hsu, Shang H., Chien C. Huang, Yang H. Tsuang, and Jui S. Sun. "Age Differences in Remote Pointing Performance." Perceptual and Motor Skills 85, no. 2 (1997): 515–27. http://dx.doi.org/10.2466/pms.1997.85.2.515.

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The purpose of this study was to investigate age differences in remote pointing movements. The subjects were recruited from three age groups (ages 18–22 yr., 40–50 yr., and 60–70 yr., with 9 men and 9 women in each group). They were required to perform cursor-positioning tasks using a remote pointing device, in which the dependent measures were the time taken to reposition the cursor and the accuracy of subjects' movement trajectories. The movement time was further separated into two components, First Submovement duration and Adjustment Submovement duration. Analysis indicated that age groups

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Nagahama, Yasuhiro, Tomoko Okina, and Norio Suzuki. "Neuropsychological Differences Related to Age in Dementia with Lewy Bodies." Dementia and Geriatric Cognitive Disorders Extra 7, no. 2 (2017): 188–94. http://dx.doi.org/10.1159/000477296.

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Background/Aims: To examine the influence of age on neuropsychological performances in dementia with Lewy bodies (DLB) and Alzheimer disease (AD) patients. Methods: We examined memory, executive, and visuo-constructional performances in 202 DLB patients and 236 AD patients. We divided the subjects into three age groups (65–74, 75–84, and 85–95 years old), and evaluated the differences in neuropsychological performances. Results: Recent memory in the DLB group was significantly better than that in the age-matched AD group when comparing the age groups 65–74 years and 75–84 years; however, memor

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Mizuguchi, Satoshi, Aaron J. Cunanan, Dylan G. Suarez, et al. "Performance Comparisons of Youth Weightlifters as a Function of Age Group and Sex." Journal of Functional Morphology and Kinesiology 6, no. 3 (2021): 57. http://dx.doi.org/10.3390/jfmk6030057.

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This study was designed to provide an overview of weightlifting performance as a function of age group and sex and evaluate the potential of countermovement jump height (CMJH) as a tool to gauge performance potential. Data from 130 youth athletes (female, n = 65 & male, n = 65) were used to examine progression of performance (Total and Sinclair total) and the relationship between CMJH and Sinclair total while considering interactions between CMJH and age and/or sex. ANOVAs with post hoc analyses revealed that both totals had a statistical first-order polynomial interaction effect between a

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Li, Lan, Xiaoyi Zhang, Lihong Zhao, Jianyun Zhang, Cheng Ji, and Qiugang Ma. "Phosphorus Restriction in Brooding Stage Has Continuous Effects on Growth Performance and Early Laying Performance of Layers." Animals 11, no. 12 (2021): 3546. http://dx.doi.org/10.3390/ani11123546.

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This study evaluated the effects of phosphorus restriction in the brooding stage and subsequent recovery on growth performance, tibia development and early laying performance of layers. 360 one-day-old hens were randomly divided into 4 groups with 6 replicates and 15 chicks per replicate. Chicks were fed diets containing 0.13% (L), 0.29% (M), 0.45% (N), 0.59% (H) non-phytate phosphorus (nPP) from 1 to 8 weeks of age. From 9 to 20 weeks of age, the L and N group were divided into two groups fed normal level phosphorus (n, 0.39% nPP) and high-level phosphorus (h, 0.45% nPP) separately, then all

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North, Alvin J., Hanna K. Ulatowska, Sara Macaluso-Haynes, and Hanna Bell. "Discourse Performance in Older Adults." International Journal of Aging and Human Development 23, no. 4 (1986): 267–83. http://dx.doi.org/10.2190/bpf0-2bwd-bgnq-hwcw.

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Thirty-three elderly women, whose mean age was 76.2 years, and eighteen middle-aged women, whose mean age was 45.6 years, were assessed on a number of linguistic discourse tasks. The women were well educated, and most of them were or had been engaged in the teaching profession. Each woman was given 1) narrative discourse tasks involving recall of stories, summarizing stories, giving the morals of the stories, 2) procedural discourse tasks, 3) interview to assess cognitive functioning and communicative abilities, and 4) the following cognitive tests: Block Design, Symbol-Digit, Raven Coloured P

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Vavrek, Jackie, R. Daniel Machin, and Hirofumi Tanaka. "Progression of Athletic Performance in Age-Group Swimmers in the Past 50 Years." International Journal of Performance Analysis in Sport 12, no. 3 (2012): 608–13. http://dx.doi.org/10.1080/24748668.2012.11868622.

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Brito, Ângelo, and Luís Freitas. "Impact of game format and age group on technical performance in youth football." Journal of Human Sport and Exercise 19, no. 3 (2024): 901–14. http://dx.doi.org/10.55860/jtm36z51.

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This study aimed to analyse technical action variations among 5, 7, 9, and 11-a-side game formats and investigate the effects of age groups (U8, U10, U12, and U14) on these actions. A total of 197 soccer players aged between 6.94 ± 0.7 and 13.46 ± 0.5 years participated, with three matches conducted weekly, totalling 48 matches. Two-way ANOVA was employed to analyse age group and game format as independent factors. The study revealed the influence of age group on players' technical actions variability: front pass success p < .001; side pass success p < .001; back pass success p < .001

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Anthony, Danny. "Differences in Participation and Performance Trends in Age Group Half and Full Marathoners." Chinese Journal of Physiology 57, no. 4 (2014): 209–19. http://dx.doi.org/10.4077/cjp.2014.bac219.

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Et.al, Fakhri Fajrin Kurniawan. "Mental Imagery And Performance Improvement Of Basketball Athletes In The 16-18 Year Age Group." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 3 (2021): 3690–93. http://dx.doi.org/10.17762/turcomat.v12i3.1651.

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The purpose of this study was to determine whether there was a relationship between mental imagery and performance improvement of basketball athletes in the 16-18 year age group. This study used quantitative research methods. The research sample consisted of 30 basketball athletes in the Cirebon area using the purposive sampling technique. The research instrument used mental imagery training and an athlete's performance improvement scale developed according to the needs. The result showed the value r count for correlation Mental Imagery with Athlete’s performance improvement was 0.853 > r t

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Possebom, Weliton Folli, Thais Massetti, Talita Dias da Silva, et al. "Maze computer performance in Down syndrome." Journal of Human Growth and Development 26, no. 2 (2016): 205. http://dx.doi.org/10.7322/jhgd.119273.

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Introduction: These changes are the main causes of defi cits in perceptual-motor skills responsible for motor skill acquisition and performance of functional activities. AIMS: The current study aimed at verifying the quantitative performance of people with DS in undertaking a computer task to compare the performances of typical development (TD). Method: 60 subjects participated in the study, 30 with Down’s syndrome and 30 with typical development, matched by sex. Individuals were aged from 10–36. The groups were divided into three subgroups by age: Group 1 (G1) 10–18; Group 2 (G2) 18–25; Group

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Jain, Pragun. "HOW DOES MATHEMATICS ANXIETY IMPACT THE AGE GROUP 13- 16?" International Journal of Social Science and Economic Research 08, no. 01 (2023): 195–201. http://dx.doi.org/10.46609/ijsser.2023.v08i01.014.

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Mathematics is necessary for our everyday lives, as we can see it and use it everywhere in this world, whether it's the Fibonacci sequence in the petals and seeds of a plant or the motion of a truck along a slanting slope. mathematics prevails in every part of our lives. But the importance and prestige of mathematics are accompanied by the pressure and anxiety students face, because of the pressure of adults and society on how crucial it is. In this paper, we have worked out how an individual’s working memory affects their anxiety and performance in this field, and which parts of the human bra

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Gonçalves, Vanessa Tomé, and Letícia Lessa Mansur. "N-Back auditory test performance in normal individuals." Dementia & Neuropsychologia 3, no. 2 (2009): 114–17. http://dx.doi.org/10.1590/s1980-57642009dn30200008.

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Abstract The working memory construct refers to the capacity to maintain information for a limited time. Objectives: To devise stimuli and adapt the 5-back test and to verify the effect of age in normal Brazilian individuals. Methods: 31 healthy adults (15 young adults and 16 older adults) were evaluated by batteries of auditory stimuli to verify the inter-group differences (age effect) in working memory span, total correct answers and intrusions, and the intra-group effect of type of stimulus. Results: There was no intra-group stimulus effect. Individuals from both groups processed di and tri

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Evans, S. L., K. P. Davy, E. T. Stevenson, and D. R. Seals. "Physiological determinants of 10-km performance in highly trained female runners of different ages." Journal of Applied Physiology 78, no. 5 (1995): 1931–41. http://dx.doi.org/10.1152/jappl.1995.78.5.1931.

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Endurance exercise performance declines with age; however, there is little information on the mechanisms responsible, especially in women. We tested the hypothesis that this performance decline in women is associated with decreases in maximal O2 consumption (VO2max), blood lactate threshold (LT), and running economy (RE). We determined a 10-km race pace, VO2max, LT, and RE in 31 highly trained female runners aged 23–56 yr with similar relative (i.e., age-adjusted) competitive performances. Absolute 10-km race pace declined with age (r = -0.83). Both 10-km performance and age were correlated wi

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Blanksby, Brian A., Jennifer R. Simpson, Bruce C. Elliott, and Keith McElroy. "Biomechanical Factors Influencing Breaststroke Turns by Age-Group Swimmers." Journal of Applied Biomechanics 14, no. 2 (1998): 180–89. http://dx.doi.org/10.1123/jab.14.2.180.

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Because turning can account for one-third of breaststroke race time in 25 m pools, it is possible that enhancing turning techniques can improve performance significantly. Underwater video cameras and a force platform were used to analyze turning techniques of 23 age-group breaststrokers during three 50 m push-start, maximum-effort swims. The criterion measure was the time elapsed between passing the 5 m mark on the approach and departure from the wall (5 m round-trip time [RTT]). Correlations revealed significant commonality of variance (p < .01) between the 5 m RTT and the 2.5 m RTT, 50 m

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Andrýsek, Jiří, Milan Večeřa, Jana Javorová, Milena Velecká, Daniel Falta, and Gustav Chládek. "The Effect of Growth Rate on Some Beef Performance Characteristics of Czech Fleckvieh Heifers." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 63, no. 4 (2015): 1095–100. http://dx.doi.org/10.11118/actaun201563041095.

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The objective of this study was to determine the effect of growth rate on some beef performance characteristics in Czech Fleckvieh heifers. Growth performance characteristics included age at slaughter (months) and daily weight gain (g). The observed beef performance characteristics were carcass weight, conformation class (SEUROP) and external fat deposition. The experimental group consisted of 480 heifers. The animals were assigned into three groups (A, B, C) based on age at slaughter. Group A consisted of 68 animals with the age at slaughter 15–21 months, group B 296 animals, age 22–28 months

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Tucher, Guilherme, Flávio Antônio de Souza Castro, Nuno Domingos Garrido, and Ricardo Jorge Fernandes. "Monitoring Changes Over a Training Macrocycle in Regional Age‐Group Swimmers." Journal of Human Kinetics 69, no. 1 (2019): 213–23. http://dx.doi.org/10.2478/hukin-2019-0014.

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Abstract Our aim was to analyze physiological, kinematical and performance changes induced by swimming training in regional age‐group athletes. Subjects (15.7 ± 2.2 years old) performed a 4 x 50‐m front‐crawl test at maximal velocity (10 s rest interval) in weeks 2, 4, 9 and 12 of a 15‐week macrocycle. Descriptive statistics were used and the percentage of change and smallest worthwhile change (moderate, 0.6‐1.2, and large, > 1.2) were measured. Lactate concentration in the third, seventh and twelfth minute of recovery decreased significantly between weeks 2‐9 (14.1, 15.7 and 17.6%) and inc

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Allisse, Maxime, Pierre Sercia, Alain-Steve Comtois, and Mario Leone. "Morphological, Physiological and Skating Performance Profiles of Male Age-Group Elite Ice Hockey Players." Journal of Human Kinetics 58, no. 1 (2017): 87–97. http://dx.doi.org/10.1515/hukin-2017-0085.

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AbstractThe purpose of this study was to describe the evolution of morphological, physiological and skating performance profiles of elite age-group ice hockey players based on repeated measures spread over one season. In addition, the results of fitness tests and training programs performed in off-ice conditions and their relationship with skating performance were analyzed. Eighteen high level age-group ice hockey players (13.1 ± 0.6 years) were assessed off and on-ice at the beginning and at the end of the hockey season. A third evaluation was also conducted at the beginning of the following

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Knechtle, Beat. "Performance Trends in Age Group Breaststroke Swimmers in the FINA World Championships 1986-2014." Chinese Journal of Physiology 59, no. 5 (2016): 247–59. http://dx.doi.org/10.4077/cjp.2016.bae406.

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Stanimir, DIMITROV, T. PALLAS ALONSO Rafael, and BONEV Georgi. "REPRODUCTIVE PERFORMANCE OF GILTS SYNCHRONIZED WITH ALTRENOGEST." Contemporary Agriculture (2015) 64, no. 3-4 (2015): 230–34. https://doi.org/10.5281/zenodo.5813331.

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The introduction of gilts into herds is a key element of management in commercial pig farms and this requires an efficient method for estrus synchronization of young animals. In this case the objective of this study was to evaluate the efficacy of Altrenogest treatment on reproductive performance of synchronized gilts in comparison with nonsynchronized animals depending of the age and the live weight of the animals. Two hundred sixty and two gilts were randomly assigned to two different groups: control group (55) and treated group (207) receiving 20 mg. of Altrenogest for 18 consecutive days.

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Sell, Yvonne, and Theresa J. B. Kline. "Age, Cooperative vs Lecture Training, and Group Composition: Some Preliminary Findings of Effects on Performance." Psychological Reports 77, no. 1 (1995): 267–74. http://dx.doi.org/10.2466/pr0.1995.77.1.267.

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18 younger (under 25 years) and 18 older (over 39 years) undergraduate women were trained in problem-solving by either a cooperative or traditional lecture technique and in age-consistent, i.e., younger or older participants only, or mixed age, i.e., younger and older participants, groups. Analysis indicated that older subjects did not score as well on the problem-solving task (48.9 vs 43.9) where lower scores indicate better performance, particularly in mixed-age groups (58.2 vs 44.3); older subjects completed the task more quickly (349 sec. vs 466 sec), age-consistent groups completed the ta

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Kleissner, Verena, and Georg Jahn. "Dimensions of Work-Related Age Stereotypes and In-Group Favoritism." Research on Aging 42, no. 3-4 (2019): 126–36. http://dx.doi.org/10.1177/0164027519896189.

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Age stereotypes in the context of work take effect in management decisions and leadership behavior. We aimed to comprehensively measure main dimensions of work-related age stereotypes, namely, performance, adaptability, reliability, and warmth, and explored how they vary across age groups, thereby testing predictions of social identity theory and associations with social contact. Three hundred and eighty German nurses aged between 19 and 63 years participated in this study. Older nurses were seen as more competent, less physically strong, and less adaptable, whereas younger nurses were seen as

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Romero-Ramos, Oscar, Emilio Fernández-Rodríguez, Rafael Merino-Marbán, Daniel Mayorga-Vega, and Robert Podstawski. "Age and Gender Differences in Performance at Cross Triathlon World Championships." Polish Journal of Sport and Tourism 25, no. 3 (2018): 17–22. http://dx.doi.org/10.2478/pjst-2018-0015.

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Abstract Introduction. Cross triathlon is a sport consisting of three segments: swimming, off-road cycling, and running. Our study analyses the differences in performance between genders and changes in performance in selected age categories at the ITU Cross World Championships held between 2011 and 2016. Material and methods. During this period, a total of 1,933 triathletes were analysed (1,472 men and 461 women). Two-way analyses of variance (ANOVA) were used to examine the impact of sex differences and age-related changes on performance (time, percentage of time, and performance ratio) in sw

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Abbott, Shaun, Goshi Yamauchi, Mark Halaki, Marcela Torres Castiglioni, James Salter, and Stephen Cobley. "Longitudinal Relationships Between Maturation, Technical Efficiency, and Performance in Age-Group Swimmers: Improving Swimmer Evaluation." International Journal of Sports Physiology and Performance 16, no. 8 (2021): 1082–88. http://dx.doi.org/10.1123/ijspp.2020-0377.

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Purpose: The study aimed to (1) accurately examine longitudinal relationships between maturity status and both technical skill indices and performance in Australian male (N = 64) age-group Front-crawl swimmers (10–15 y) and (2) determine whether individual differences in maturation influenced relationships between technical skill level and swimming performance. Methods: A repeated-measures design was used to assess maturity status and performance on 200-m Front-crawl trial across 2 competition seasons (2018–2020). Assessments were made on 3 to 5 occasions (median = 3) separated by approximatel

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Žuffová, Zuzana, and Ludmila Zapletalová. "Efficiency Of Different Teaching Models In Teaching Of Frisbee Ultimate." Acta Facultatis Educationis Physicae Universitatis Comenianae 55, no. 1 (2015): 64–73. http://dx.doi.org/10.1515/afepuc-2015-0008.

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Abstract The aim of the study was to verify the efficiency of two frisbee ultimate teaching models at 8-year grammar schools relative to age. In the experimental group was used a game based model (Teaching Games for Understanding) and in the control group the traditional model based on teaching techniques. 6 groups of female students took part in experiment: experimental group 1 (n=10, age=11.6), experimental group 2 (n=12, age=13.8), experimental group 3 (n=14, age =15.8), control group 1 (n=11, age =11.7), control group 2 (n=10, age =13.8) and control group 3 (n=9, age =15.8). Efficiency of

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Hsu, Shang H., Chien C. Huang, Yang H. Tsuang, and Jui S. Sun. "Age-Related Differences in Remote Pointing Performance." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 41, no. 1 (1997): 148–51. http://dx.doi.org/10.1177/107118139704100134.

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The present study investigated age-related differences in remote pointing performance. Three age groups (i.e., the Young adult. Middle-aged, and Elderly) performed cursor positioning tasks by using a remote pointing device. The time taken to reposition the cursor was collected. The result showed that age groups had differences in movement time. Further analysis on the submovement duration times showed that movement time for the Young-adult group was mostly travel time, while the Elderly subjects spent most of their movement time on fine adjustment. This study supports the proposition that diff

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