Relationship between lower limb muscle strength and walk speed in community dwelling older adults: the chain mediating role of flexibility and dynamic balance
10.3969/j.issn.1006-9771.2023.06.004
- VernacularTitle:社区高龄老年人下肢肌力与步速的关系：柔韧和动态平衡的链式中介作用
- Author:
Xiaohuan TAN
1
;
Guiping JIANG
1
;
Xinyi HUANG
2
;
Dandan WANG
3
;
Lei ZHANG
1
;
Qingguo BU
1
;
Xueping WU
1
Author Information
1. School of Physical Education, Shanghai University of Sport, Shanghai 200438, China
2. School of Psychology, Shanghai University of Sport, Shanghai 200438, China
3. Department of Physical Education, University of Shanghai for Science and Technology, Shanghai 200093, China
- Publication Type:Journal Article
- Keywords:
muscle strength;
walking speed;
flexibility;
dynamic balance;
older adults
- From:
Chinese Journal of Rehabilitation Theory and Practice
2023;29(6):646-653
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo investigate the relationship between lower limb muscle strength and walking speed in older adults, and to analyze the mediating role of flexibility and dynamic balance. MethodsFrom November to December, 2021, a total of 155 older adults at the Shanghai Senior Sports and Health Home were included. Their basic health information was collected, and the lower limb muscle strength, flexibility, dynamic balance and walking speed were tested. A mediated effects analysis was conducted. ResultsThere was a pairwise correlation among lower limb muscle strength, flexibility, dynamic balance and walking speed in older adults (r > 0.210, P < 0.01). In the mediated effects model, after controlling for age and gender, lower limb muscle strength did not directly predict walking speed in older adults (β = 0.029, P = 0.699), however, lower limb muscle strength could influence walking speed through the partial mediation of dynamic balance (effect = 0.0130, 95% CI 0.0073~0.0197) and the chain mediation of lower flexibility and dynamic balance (effect = 0.0019, 95% CI 0.0003~0.0043). ConclusionLower limb muscle strength can indirectly affect walking speed in older adults through the mediators of flexibility and dynamic balance, or the dynamic balance alone.
