Factor Structure and Correlates of Functional Fitness of Older Adults in Taiwan

Background: The purposes of the study were to test the factor structure of the models of functional fitness for older adults, in which the latent factor flexibility represents scores in chair sit-and-reach and back scratch, and the latent factor Physical Power represents scores in chair stand, arm c...

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Main Authors: Li-An Ho, Huey-June Wu, Tracey D. Matthews, Jasson Chiang, Ying-Ju Lin
Format: Article
Language:English
Published: Taiwan Society of Geriatric Emergency and Critical Medicine (TSGECM) 2013-09-01
Series:International Journal of Gerontology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1873959812001500
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author Li-An Ho
Huey-June Wu
Tracey D. Matthews
Jasson Chiang
Ying-Ju Lin
author_facet Li-An Ho
Huey-June Wu
Tracey D. Matthews
Jasson Chiang
Ying-Ju Lin
author_sort Li-An Ho
collection DOAJ
description Background: The purposes of the study were to test the factor structure of the models of functional fitness for older adults, in which the latent factor flexibility represents scores in chair sit-and-reach and back scratch, and the latent factor Physical Power represents scores in chair stand, arm curl, 8-foot up-and-go, and 2-minute step. Correlates of the latent factors including age, sex, and physical activity level were also investigated. Methods: Functional fitness tests were administered to 94 older adults (age: 73.61 ± 5.77 years). Demographic data were collected and physical activity level was measured by using the Physical Activity Scale for Elderly (PASE). The structural equation modeling technique was used to investigate the factor structure of flexibility model and physical power model as well as the contribution of the correlates. Results: The goodness-of-fit indices were excellent for the flexibility model (χ²-square = 4.725, df = 5, p = 0.451, comparative fit index [CFI] = 1.00, Root mean square error of approximation [RMSEA] = 0.001, standardized root mean square of residuals [SRMR] = 0.0646) and physical power model (χ²-square = 17.962, df = 14, p = 0.209, CFI = 0.981, RMSEA = 0.055, SRMR = 0.0651). Age and sex were significant predictors to flexibility and physical power (p < 0.05). Physical activity level was a significant predictor of flexibility (p < 0.05). Conclusion: Flexibility and physical power decline with advanced age. Males have higher physical power, and females have better flexibility. A higher level of physical activity, as measured by PASE, relates to better flexibility but not physical power.
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spelling doaj.art-ae58c059b7ff45169faf4f24fd8042492022-12-22T03:22:44ZengTaiwan Society of Geriatric Emergency and Critical Medicine (TSGECM)International Journal of Gerontology1873-95982013-09-017315816110.1016/j.ijge.2012.11.009Factor Structure and Correlates of Functional Fitness of Older Adults in TaiwanLi-An Ho0Huey-June Wu1Tracey D. Matthews2Jasson Chiang3Ying-Ju Lin4Department of Physical Education, Chinese Culture University, Taipei, Taiwan, ROCGraduate Institute of Sports Coaching Science, Chinese Culture University, Taipei, Taiwan, ROCDepartment of Exercise Science and Sport Study, Springfield College, Springfield, MA, USAGraduate Institute of Sports Coaching Science, Chinese Culture University, Taipei, Taiwan, ROCGraduate Institute of Sports Coaching Science, Chinese Culture University, Taipei, Taiwan, ROCBackground: The purposes of the study were to test the factor structure of the models of functional fitness for older adults, in which the latent factor flexibility represents scores in chair sit-and-reach and back scratch, and the latent factor Physical Power represents scores in chair stand, arm curl, 8-foot up-and-go, and 2-minute step. Correlates of the latent factors including age, sex, and physical activity level were also investigated. Methods: Functional fitness tests were administered to 94 older adults (age: 73.61 ± 5.77 years). Demographic data were collected and physical activity level was measured by using the Physical Activity Scale for Elderly (PASE). The structural equation modeling technique was used to investigate the factor structure of flexibility model and physical power model as well as the contribution of the correlates. Results: The goodness-of-fit indices were excellent for the flexibility model (χ²-square = 4.725, df = 5, p = 0.451, comparative fit index [CFI] = 1.00, Root mean square error of approximation [RMSEA] = 0.001, standardized root mean square of residuals [SRMR] = 0.0646) and physical power model (χ²-square = 17.962, df = 14, p = 0.209, CFI = 0.981, RMSEA = 0.055, SRMR = 0.0651). Age and sex were significant predictors to flexibility and physical power (p < 0.05). Physical activity level was a significant predictor of flexibility (p < 0.05). Conclusion: Flexibility and physical power decline with advanced age. Males have higher physical power, and females have better flexibility. A higher level of physical activity, as measured by PASE, relates to better flexibility but not physical power.http://www.sciencedirect.com/science/article/pii/S1873959812001500flexibilitylatent factorphysical powerstructural equation modeling
spellingShingle Li-An Ho
Huey-June Wu
Tracey D. Matthews
Jasson Chiang
Ying-Ju Lin
Factor Structure and Correlates of Functional Fitness of Older Adults in Taiwan
International Journal of Gerontology
flexibility
latent factor
physical power
structural equation modeling
title Factor Structure and Correlates of Functional Fitness of Older Adults in Taiwan
title_full Factor Structure and Correlates of Functional Fitness of Older Adults in Taiwan
title_fullStr Factor Structure and Correlates of Functional Fitness of Older Adults in Taiwan
title_full_unstemmed Factor Structure and Correlates of Functional Fitness of Older Adults in Taiwan
title_short Factor Structure and Correlates of Functional Fitness of Older Adults in Taiwan
title_sort factor structure and correlates of functional fitness of older adults in taiwan
topic flexibility
latent factor
physical power
structural equation modeling
url http://www.sciencedirect.com/science/article/pii/S1873959812001500
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