年长的成年人使用较少的肌肉来克服在坐着的运动机动任务期间的干扰
Seyed Yahya Shirazi1, Helen J Huang2,3
1Swartz Center for Computational Neuroscience, Institute for Neural Computation, University of California San Diego, La Jolla, California, United States.
Journal of neurophysiology
|May 8, 2024
概括
较年长的成年人表现出较少的运动错误比年轻的成年人在乱步行时,利用不同的肌肉招募策略. 这突出了与年龄相关的运动适应,有利于平衡和康复.
科学领域:
- * 运动控制和适应研究.
- * 老年学和生物力学.
背景情况:
- * 运动干扰揭示了个体对运动错误的反应方式.
- *了解运动适应和肌肉合收缩的年龄相关差异对于评估功能和指导康复至关重要.
研究的目的:
- * 为了研究与年龄相关的运动适应和肌肉合收缩的差异,在扰乱的横卧步骤.
- * 为了比较年轻人和老年人对影响手臂和腿部运动的短暂阻力扰动的反应.
主要方法:
- * 17名年轻人和11名老年人执行了10分钟的乱步行任务,短暂增加了抵抗力.
- *参与者遵循视觉线索,并使用所有四肢驱动步行器.
- *分析了运动错误和肌肉收缩,以应对干扰.
主要成果:
- *与年轻人相比,老年人表现出总是较小的运动错误.
- * 任何一个年龄组都没有显示显著的错误减少与经验或错误冲洗后扰乱去除.
- *年长的成年人表现出更大的肌肉合收缩,并使用较少的肌肉,主要是前肌和肌,以驱动步进器.
结论:
- *年轻人和老年人在乱步行时采用不同的肌肉招募策略,尽管运动错误反应相似.
- *老年人更大的缩和特定的肌肉招募 (前,独) 可能反映了保持平衡的适应性策略.
- *这些与年龄相关的运动策略提供了对人类生命周期内的运动变化的洞察力,并为康复和绩效评估提供了信息.
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