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对阿基里斯肌振动的姿势反应取决于脚的定位
E Teixeira Alves1, C D Rinaldin1, P K Hembecker1
1Graduate Program in Health Technology, Pontifícia Universidade Católica do Paraná (PPGTS/PUCPR), Paraná, Brazil.
Perceptual and motor skills
|September 1, 2023
概括
阿基里斯肌 (TV) 的机械振动通过改变压力中心 (CoP) 运动来影响姿势控制. 时间和光谱的CoP特征都在振动期间和之后适应,脚的位置会影响运动,但不会影响光谱特性.
科学领域:
- 生物力学 生物力学
- 神经科学是一个神经科学.
- 人类运动控制人体运动控制
背景情况:
- 阿基里斯肌 (TV) 的机械振动是研究自身感受在姿势控制中的作用的常见方法.
- 关于电视对姿势控制的影响的先前研究主要集中在压力中心 (CoP) 的时间参数上,并使用了不同的脚位.
研究的目的:
- 调查阿基里斯电视对 CoP 运动的时间和光谱特征的影响.
- 为了检查不同的脚位如何影响身体对电视的姿势反应.
主要方法:
- 18名健康的成年人赤脚站在双重平台上,眼睛被遮住.
- 阿基里斯电视 (80赫兹,0.2-0.5毫米振幅) 被双边应用了20秒.
- 分析了COP信号在自然和标准 (15°英尺角开放) 位置,在振动 (VIB) 和恢复期 (REC) 期间,检查了时间和光谱参数.
主要成果:
- 在VIB阶段,TV显著增加了CoP速度 (中侧和前后) 和前后位移,在REC阶段逐渐下降.
- 与REC相比,VIB期间的中位和峰值COP频率在中侧方向上升.
- 标准化的脚位增加了CoP速度和中侧位移,但没有改变光谱特征.
结论:
- 姿势控制,反映在CoP运动中,在阿基里斯电视期间和之后表现出适应,在时间和光谱领域都可以观察到.
- 脚的位置会影响电视播放期间和之后的 CoP 运动的时间动态,但不会影响其光谱特性.
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