使用可穿戴加速度计的上肢双边协同协调的时间定位
1Department of Bioengineering, George Mason University, Fairfax, VA, United States of America.
PeerJ
|September 9, 2024
概括
年长的成年人表现出更强的四肢间协调,而年轻的成年人表现出更强的四肢内部协调,这表明上肢任务的运动控制策略与年龄相关的转变.
科学领域:
- 生物力学 生物力学
- 神经康复疗法 神经康复疗法
- 人类运动科学科学 人类运动科学
背景情况:
- 人类上肢具有固有的运动丰富性,用于敏捷的任务执行.
- 卒中幸存者往往会经历上肢运动和感觉障碍的显著变化.
- 治疗干预越来越认识到双手协调和运动控制的重要性.
研究的目的:
- 探索加速计,以量化双边上肢协调.
- 为了调查与年龄相关的肢体间和肢体内协调的差异,在完成任务时.
- 评估可穿戴传感器在客观运动控制评估中的实用性.
主要方法:
- 两个年龄组 (年轻者:23.4 ± 2.9岁;年长者:55.9 ± 10.6岁) 进行了三个协调的到达任务.
- 可穿戴的加速和倾斜传感器被放置在上臂,前臂和手上.
- 在MATLAB的数据分析中,使用不相似性指数和时间分析量化了四肢间和四肢内协调.
主要成果:
- 任务复杂性增加了两组运动的不相似性.
- 年轻的成年人 (第一组) 显示出更强的四肢内协调,特别是在上臂前臂部分.
- 年长的成年人 (2组) 表现出更长的肢体间协调时间,特别是在完成任务的过程中.
结论:
- 可穿戴加速计为上肢协调提供客观得分.
- 老年人表现出与年龄相关的协调变化,包括降低横向性和增加四肢间协调.
- 年轻的成年人更强的肢体内协调可能有助于增强运动稳定性.
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