下肢关节的工作对称性响应载荷和假肢类型的脚在跨肢截肢行走期间
Stephanie L Molitor1, Krista M Cyr2, Glenn K Klute3
1Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, USA.
Journal of biomechanics
|November 13, 2025
概括
动力假肢减少依赖于完整的肢体在负载运输在下肢截肢的人. 这项研究发现,动力假肢改善了关节工作对称性,特别是在额外的负载下,减少了过度使用伤害的风险.
科学领域:
- 生物力学 生物力学
- 假肢和整形手术
- 康复工程 康复工程
背景情况:
- 下肢截肢的个人经常使用被动假肢.
- 承载负载增加了对完整四肢的依赖,冒着过度使用伤害的风险.
- 动力假肢可能会减轻补偿,但它们在载荷运输期间的影响尚不清楚.
研究的目的:
- 调查负载存在和放置如何影响跨关节假肢使用者的关节工作对称性.
- 为了确定假肢脚类型 (被动与动力) 在载荷运输过程中是否会影响关节工作对称性.
主要方法:
- 收集了来自12名单边穿关节假肢使用者的动力学和运动数据.
- 用户在没有负载,前负载或后负载条件下使用被动或动力假肢行走.
- 计算了脚,膝盖和部的四肢间净关节工作对称性,以评估完整的四肢依赖性.
主要成果:
- 额头负载放置改善了与没有负载相比的脚和部工作对称性,这表明了补偿性权衡.
- 动力假肢增强了所有负载条件下的脚工作对称性.
- 载荷改变了补偿策略,动力假肢显示了好处.
结论:
- 负载承载显著影响了假肢使用者的关节工作对称性和完整四肢依赖性.
- 动力假肢足可以减少在载荷运输期间对完整四肢的依赖.
- 研究结果支持使用动力假肢,以减轻截肢者执行负载任务时过度使用的伤害.
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