地域在住中高齢者の運動教室参加における筋力と歩行能力発達との因果関係

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The purpose of this study was to confirm the causal effect model of strength on walking ability development as a result of exercise participation among elderly people in a community, utilizing the latent curve model (LCM) in structural equation modeling (SEM). Twenty-six male and 57 female subjects, 83 in total, aged 67.8±5.7, 63.9±7.1 and 65.1±6.9 in a pooled sample participated in the exercise program which lasted for two years. Grip strength and sit-ups used in the Japan Fitness Test were measured for muscular strength, 10-m hurdle walk and 6-min walk for walking ability, and the fitness test score for physical ability. The data analysis procedures were as follows : a) analysis of test-retest reliability and construct validity of measurement items, b) analysis of causal structure model of aging, muscular strength and walking ability, c) analysis of variance for repeated measurement of walking performance by sex, age and year, d) analysis of LCM for walking performance development. The highest goodness-of-fit indices of SEM were obtained in the LCM of 10-m hurdle walk performance development (GFI=0.989, AGFI=0.920, CFI=0.998, RMSEA=0.038). The path coefficient of sit-ups at pre-test effect on the intercept of 10-m hurdle walk performance development was significant (p<0.05). The path coefficients of age to intercept and slope of 10-m hurdle walk development were also significant (p<0.05). It was concluded that walking ability development through participation in exercise age and strength level was more effective for maintaining walking ability in older age.
日本体力医学会の論文
2003-08-01

地域在住中高齢者の運動教室参加における筋力と歩行能力発達との因果関係

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