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年龄和姿势限制对握手的影响
Eduardo G Campoi1,2, Henrique G Campoi1,2, Renato Moraes3,4
1Biomechanics and Motor Control Lab, School of Physical Education and Sport of Ribeirao Preto, University of Sao Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14040-907, Brazil.
Experimental brain research
|May 31, 2023
概括
年长的成年人使用补偿策略来抓住,特别是在站立时. 在复杂的任务中,年龄对精细运动控制 (抓住) 的影响大于粗运动控制 (伸手).
科学领域:
- 老年学是一门学科.
- 生物力学 生物力学
- 发动机控制器的控制器
背景情况:
- 老年人经常在复杂的运动任务中使用补偿策略,例如伸手和抓住.
- 姿势限制可以放大这些补偿机制在老年人.
研究的目的:
- 研究年轻和年长的成年人在不同的姿势约束 (坐,站,走路) 下的伸手抓取动作.
- 在不同的年龄组和姿势条件下,在达到抓取的行动中评估姿势稳定性.
主要方法:
- 30名参与者 (15名年轻人,15名老年人) 在坐着,站着和走路的条件下执行了达到抓取任务.
- 分析的重点是运动动力学 (达到速度,握口口) 和姿势稳定性 (稳定性边缘).
主要成果:
- 步行时达到的速度较慢,没有与年龄相关的差异. 较年长的成年人表现出更大的抓取孔口和更早的峰值孔口在坐着和站着抓取时.
- 在老年人中,站立但不行走时,姿势稳定性 (稳定性边际) 降低了. 这两个年龄组在行走时表现出类似的稳定性.
- 对于所有参与者来说,在行走和非行走 (坐着,站着) 条件之间,掌握有显著的差异.
结论:
- 年龄主要影响到到达-抓取动作的远端组件 (抓取),而不是近端组件 (达到).
- 在复杂的运动任务中,健康的老年人比近距离的身体更难控制远距离的身体部分.
- 姿势背景显著影响老年人的运动控制策略,特别是影响站立时的稳定性.
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