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Updated: Jul 6, 2025

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Experimental Methods to Study Human Postural Control
Published on: September 11, 2019
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侧脚肌肉结构的闭环反射反应来自各种值 在侧脚脊椎乱期间
Jeffrey D Simpson1, Ludmila Cosio Lima1, Youngil Lee1
1Sports Medicine and Neuromechanics Laboratory, Department of Movement Sciences and Health, University of West Florida, Pensacola, FL, USA.
Journal of sport rehabilitation
|January 10, 2024
概括
选择正确的值来测量脚肌肉反应是关键. 在模拟脚扭伤期间,更敏感的值检测到长骨 (FL) 和短骨 (FB) 的反射时间更短.
科学领域:
- 生物力学 生物力学
- 神经科学是一个神经科学.
- 运动医学 运动医学
背景情况:
- 在侧脚扭伤 (LAS) 干扰期间,感觉运动集成对脚稳定至关重要.
- 长骨 (FL) 和短骨 (FB) 肌肉的延迟是关键指标,但缺乏临床指南来选择值.
- 了解反射反应值对于评估LAS损伤机制和预防至关重要.
研究的目的:
- 为了确定不同的统计值 (2,5和10标准偏差) 对FL和FB肌肉的测量延迟的影响.
- 评估这些值如何影响模拟LAS期间闭环反射反应的评估.
- 为在临床和研究环境中选择适当的延迟值提供基于证据的建议.
主要方法:
- 一项描述性实验室研究,涉及20名健康成年人从一个落地降落到一个倾斜的力量平台上.
- 表面电肌图 (sEMG) 在意想不到的反转扰动期间记录了FL和FB肌肉活动.
- 延迟计算使用2,5,和10 SD值超过基线肌肉活动,通过单向ANOVA进行统计比较.
主要成果:
- 与FL和FB肌肉的5SD和10SD值相比,在2SD值下观察到显著更短的延迟时间 (P < .01).
- 5SD值也产生显著较短的延迟比10SD值两个肌肉 (P <.004).
- 这些发现表明,更敏感的值 (较低的SD值) 会导致检测到的反射反应时间更短.
结论:
- 统计值的选择显著影响了 LAS 模拟过程中脚肌肉的测量延迟.
- 更敏感的门 (例如,2 SD) 与更严格的门 (例如,10 SD) 相比,揭示了更短的闭环反射反应.
- 对于值选择的建议应考虑用于扰动的特定装置和由此产生的脚反转速度.
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