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侧长度对膝盖引力减动动量的作用步行过程中减动动量的机制

Yoshitaka Iwamoto^1,2, Wataru Kawakami^1,3, Ryosuke Takeuchi¹

¹Department of Neuromechanics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.

Prosthetics and orthotics international

|April 1, 2024

概括

在患有膝关节关节炎的患者中,侧内 (LWIs) 降低了膝关节附加时刻 (KAM). 较长的LWI进一步减少了第二个KAM峰值和冲动,通过改变步行过程中的脚力学.

科学领域:

生物力学生物力学
整形外科整形外科整形外科
运动医学运动医学

背景情况:

侧内 (LWIs) 用于通过减少膝关节负荷来治疗膝关节骨关节炎 (OA).
确切的生物机械机制,其中LWI长度影响膝盖引矩 (KAM) 需要进一步的研究.

研究的目的:

为了研究不同侧内 (LWI) 长度在行走过程中对膝盖引力时刻 (KAM) 的生物力学影响.
阐明LWI长度,足部生物力学和KAM减小之间的关系.

主要方法:

十二名健康的年轻人带有和没有两种不同长度的LWI走路.
使用三维运动分析计算KAM峰值和脉冲.
分析了膝盖地面反应力杆臂 (KLA),压力中心 (COP),脚变动时刻和脚变动角度.

主要成果:

两种LWI长度都减少了第一个KAM峰值,横向取代了COP,并缩短了KLA.
较长的LWI还减少了第二个KAM峰值和KAM冲动.
较长的LWI诱导了较大的横向COP位移,并在整个立场阶段保持了较短的KLA,从而显著减少了KAM冲动.

结论:

侧内长度通过改变脚部生物力学影响KAM减少.
较长的LWIs通过在立场阶段保持横向COP位移和较短的KLA来减少整体KAM冲动的更大能力.
这些发现提供了一个更深入的了解的生物力学机制背后的LWI有效性在管理膝关节OA.

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