장기간 저강도 복합운동이 여성 노인의 기능체력, 보행속도 및 신체조성에 미치는 영향

Abstract

This research aimed to verify the effects of a long term low-intensity combined exercise program as an exercise intervention on functional fitness, gait speed, and body composition in elderly women. A total of 24 subjects were assigned to low-intensity exercise group(n=12) and control group(n=12) randomly. A 60 minute Otago exercise was applied to them as the intervention 3 times a week for 32 weeks by RPE 9-12. Functional fitness was measured by Senior Fitness Test. Gait speed was measured by 10m distance divided by the second. Items for body composition consisted of height, weight, BMI, WHR, skinfold thickness(triceps, subscapular), %fat, %LBM, Fat, LBM, Fat/height, and LBM/height. Mean and standard deviations were calculated by using SPSS Version 22.0. A two-way repeated measures ANOVA was conducted to verify interactions between pre-post measurement and groups. Statistical significance was set at p.05. This research showed that there were significant interactions between time and groups in 30- second chair stand(p.01), 30-second arm curl(p.05), back scratch(p.01) and 8-foot up-and-go(p.05), gait speed(p.001) for low-intensity combined exercise group. Significant increases appeared between groups in 30-second chair stand(p.05), and 30-second arm curl(p.001) for low- intensity combined exercise group. Significant increase appeared between time in 30-second chair stand(p.05), and back scratch(p.05), gait speed(p.05) for low-intensity combined exercise group. It showed significant changes between pre-mid measurements in triceps(p.01) for low-intensity combined exercise group. With low -intensity RPE 9-12 for a long term, this combined exercise program can be used as an effective and safe exercise intervention to reduce triceps skinfold thickness and improve lower body strength, upper body strength, dynamic balance, agility, gait speed and prevent falls for elderly women living in a community.