下肢的优势并不能解释在走路和跑步时观察到的特定对象的脚运动不对称性
Stephanie L Molitor1, Karl E Zelik2, Kirsty A McDonald3
1Vanderbilt University, Department of Biomedical Engineering, Nashville, TN 37212, USA; The University of Texas at Austin, Walker Department of Mechanical Engineering, Austin, TX 78712, USA.
Journal of biomechanics
|November 26, 2023
概括
下肢优势在行走或跑步时不会影响脚动力学,如甲足关节 (MPJ) 或中侧纵弧 (MLA). 个体差异存在,但群体数据显示主导和非主导四肢之间没有显著差异.
科学领域:
- 生物力学 生物力学
- 人类的机动运动
- 运动学 运动学
背景情况:
- 人类运动研究揭示了下肢动力学不对称性,特别是在远端关节.
- 这些不对称性对肢体优势的功能影响仍然不清楚.
研究的目的:
- 为了研究下肢优势在运动过程中对脚动力学的影响.
- 分析大关节 (MPJ) 和中侧纵弧 (MLA) 的运动范围.
- 为了评估与四肢主导性相关的风机制激活的持续时间.
主要方法:
- 健康的年轻人 (N=12) 参加了这项研究.
- 记录了足部动力学,包括MPJ和MLA的运动范围和风接触时间.
- 在跑步机上行走和以各种速度跑步时收集数据.
主要成果:
- 在主导和非主导四肢之间的MPJ或MLA运动范围中,没有发现显著的群体水平差异.
- 风机械的激活时间也没有显示出肢体之间的显著差异.
- 个别参与者表现出肢体间的轻微变异 (约. 2-6°) 在MPJ和MLA的运动范围.
结论:
- 下肢的主导地位似乎不是影响小组级移动过程中足部动力学的主要因素.
- 观察到的个体动力学变化可能具有临床意义或影响研究数据的解释.
- 需要进一步的研究,以了解个体运动不对称的病因.
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