Effects of Strength Training and Flexibility Training on Obstacle-Crossing Performance of Elderly Women
10.16156/j.1004-7220.2025.02.011
- VernacularTitle:力量训练与柔韧性训练对老年女性跨越障碍运动表现的影响
- Author:
Rui XING
1
;
Feng QU
;
Yingnan MA
;
Ziyang LÜ
;
Xing GAO
Author Information
1. 北京体育大学 运动人体科学学院,北京 100084
- Publication Type:Journal Article
- Keywords:
strength training;
flexibility training;
obstacle crossing;
dynamical stability
- From:
Journal of Medical Biomechanics
2025;40(2):329-336
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effects of strength training and flexibility training on the strategy of crossing obstacles for the elderly women and the risk of tripping over obstacles.Methods Twenty five elderly women were randomly divided into strength training group(n=13)and flexibility training group(n=12),and received corresponding intervention training for 12 weeks.The kinematics data of obstacle crossing were collected using an infrared three-dimensional(3D)motion capture system before and after training.Results Both strength training and flexibility training could significantly improve the gait speed(P=0.033),stride length(P=0.020)and toe distance(P=0.014)during 25 cm obstacle crossing.The interactive effect of training and time was significant for the crossing height(15 cm:P=0.025;25 cm:P=0.019).The interactive effect of training and time was significant for the margin of stability(MOS)in the internal-external direction during 25 cm obstacle crossing(P<0.05).The minimum MOS in the first single support period(P=0.046)and the MOS at the time when the toe crossed directly above the obstacle(P=0.043)in strength training group were significantly increased.Conclusions Both strength training and flexibility training can improve the spatiotemporal characteristics of the elderly women during obstacle crossing.Compared with flexibility,muscle strength is the most important reason that restricts the crossing height of the elderly women.Strength training can effectively reduce the risk of tripping over obstacles by improving the crossing height and dynamic stability of elderly women.
