The Influence of Age on Body Dynamic Stability During Turning in Different Directions
10.16156/j.1004-7220.2024.06.024
- VernacularTitle:年龄对人体在不同方向转弯时身体动态稳定性的影响
- Author:
Yulong BO
1
;
Chengzhang CHE
;
Yunzhi WU
;
Yuhan PAN
;
Cui ZHANG
Author Information
1. 山东体育学院 研究生教育学院,济南 250102
- Publication Type:Journal Article
- Keywords:
figure-of-8 walk;
margin of stability;
continuous turning walking;
aging;
older adults
- From:
Journal of Medical Biomechanics
2024;39(6):1182-1188
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the differences in dynamic stability characteristics between older and young adults during continuous turning and walking in different directions.Methods Fifteen healthy older adults and 15 healthy young adults were recruited to complete continuous clockwise and counterclockwise figure-of-8 walk.A three-dimensional motion capture system was used to collect kinematic data based on 43 bone markers.The gait and velocity of the center of mass parameters were determined using V3D software.The margins of stability in both the anterior and medial direction at characteristic moments were calculated.Results Compared with clockwise turning,the step width of the inner leg increased and the anterior margin of stability of the inner leg at the toe-off instant decreased during counterclockwise turning in young adults.Meanwhile,there were no significant differences in the above parameters for older adults.Conclusions Both the age and turning direction affected the forward dynamic stability of the inner leg at the toe-off instant.Healthy older adults adopted more cautious strategies to maintain anterior and medial stability during continuous walking.It is recommended that older adults should increase turning training in daily life to improve their medial-lateral control capability and confidence in turning.
