Chen Rujie, Wu Qingwen, Wang Dongyan, Li Zhou, Liu Howe, Liu Guangtian, Cui Ying, Song Linlin
Rehabilitation Department, North China University of Science and Technology , Tangshan, Hebei, China.
School of Public Health, Southern Medical University , Guangzhou, Guangdong, China.
Physiother Theory Pract. 2020 Sep;36(9):1000-1008. doi: 10.1080/09593985.2018.1548673. Epub 2019 Feb 11.
To discuss the effects of elastic band exercise on the frailty states in pre-frail elderly people.
This study was a randomized controlled trial. Trial registration number is ChiCTR-IOC-17012579. Seventy pre-frail elderly people were randomly divided into elastic band group ( = 35) and control group ( = 35). Elastic band exercise was applied to elastic band group, 45-60 min per time for 8 weeks by 3 days a week; no exercise was applied to the control group. The frailty states, grip strength (female/male), walking speed, and physical activity were measured by the Fried frailty phenotype at pre-intervention, 4, and 8 weeks after intervention to assess the effects of exercise.
The elastic band group showed significant improvements in the frailty states, grip strength (female) and walking speed both after 4-week and 8-week intervention (< 0.001), and significant improvements in grip strength (male) and physical activity after 8-week intervention (< 0.05). Within-group analysis (pre-intervention vs. after 4-week, after 4-week vs after 8-week, pre-intervention vs after 8-week) showed significant improvements (< 0.001) in grip strength (female/male) and walking speed in the elastic band group over time, while no significant differences in the control group (0.05).
Elastic band exercise can improve frailty states in pre-frail elderly people, make them broke away from pre-frailty and restore them to non-frailty through improving the grip strength, walking speed and physical activity, and the effects after 8 weeks are better than those after 4 weeks.
探讨弹力带运动对衰弱前期老年人衰弱状态的影响。
本研究为随机对照试验。试验注册号为ChiCTR-IOC-17012579。70例衰弱前期老年人被随机分为弹力带组（n = 35）和对照组（n = 35）。弹力带组进行弹力带运动，每次45 - 60分钟，每周3天，共8周；对照组不进行运动。在干预前、干预后4周和8周，采用Fried衰弱表型测量衰弱状态、握力（女性/男性）、步行速度和身体活动，以评估运动效果。
弹力带组在干预4周和8周后，衰弱状态、握力（女性）和步行速度均有显著改善（P < 0.001），干预8周后握力（男性）和身体活动有显著改善（P < 0.05）。组内分析（干预前与干预后4周、干预后4周与干预后8周、干预前与干预后8周）显示，弹力带组握力（女性/男性）和步行速度随时间有显著改善（P < 0.001），而对照组无显著差异（P > 0.05）。
弹力带运动可改善衰弱前期老年人的衰弱状态，通过提高握力、步行速度和身体活动，使其摆脱衰弱前期状态，恢复至非衰弱状态，且8周后的效果优于4周后的效果。
