斜和横脚角合可以影响假肢插座横平面时刻
Glenn K Klute1,2, Connor W Mulcahy1,2
1US Department of Veterans Affairs, Center for Limb Loss and MoBility, Seattle, WA, United States.
Frontiers in rehabilitation sciences
|April 19, 2024
概括
一种新的假肢脚设计,具有6:1的斜脚:横脚合比,有效地减少了截肢者行走时的横平面峰值时刻. 这种优化的合并没有对步态或用户满意度产生负面影响.
科学领域:
- 生物力学 生物力学
- 假肢是一种假肢.
- 整形外科 整形外科 整形外科
背景情况:
- 完好无损的脚和脚在行走过程中表现出沙吉塔和横向平面之间的合运动.
- 目前的假肢足缺少这种自然的斜横平面合.
- 这种限制可能会影响假肢功能和用户体验.
研究的目的:
- 为了调查一个特定的斜腰:横脚角合比是否可以在假肢姿势期间最大限度地降低横平面时刻.
- 评估不同合比对假肢生物力学的影响.
主要方法:
- 一种带有电机的新型扭动活跃假肢 (TAP) 用于模拟各种斜:横向合比率 (1:0, 6:1, 4:1, 3:1, 2:1).
- 十一名患有单边横截肢的个体以自己选择的速度直线和圆形行走.
- 主要结果:峰值横平面时刻;次要结果:步态生物力学和满意度.
主要成果:
- 在特定行走条件下, 6:1 合比显著减少了高峰横平面时刻,而在 3:1 和 2:1 时比率相比.
- 没有观察到合比对二次步态生物力学指标产生显著影响.
- 在测试的合比率中,参与者的满意度没有显著差异.
结论:
- 一个6:1的松脚:横脚合比,似乎可以最大限度地减少 Transtibial 假肢中有害的横平面时刻.
- 这种优化的合可能不会对推进,身体支或舒适性产生不利影响.
- 未来的研究将专注于开发具有固定最佳合比率的被动假肢.
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