在单边下肢假肢使用者中,部强度与行走和平衡性能之间的关系因截肢程度而异
Andrew Sawers1, Stefania Fatone2,3
1Department of Kinesiology, University of Illinois Chicago, Chicago, Illinois, USA.
PM & R : the journal of injury, function, and rehabilitation
|August 9, 2024
概括
部强度对于假肢使用者来说至关重要. 横腿使用者依赖剩余四肢部扩展器和绑架器,而转腿使用者利用完整四肢部绑架器来改善步行和平衡.
科学领域:
- 生物力学和康复工程 生物力学和康复工程
- 整形外科和体育医学
背景情况:
- 安全高效的运动是下肢假肢使用者的首要目标.
- 部强度在假肢使用者的平衡和移动性方面的作用仍然不太清楚.
- 需要进行研究,以将关节强度,平衡和移动性与穿腿和穿腿假肢使用者的联系联系起来.
研究的目的:
- 为了研究残余和完整的肢体之间的关联同度性部强度和步行速度,耐力和平衡在假肢用户.
- 根据截肢水平来区分部力量对运动的贡献.
主要方法:
- 一项横截面研究涉及14名跨骨和14名骨假肢使用者.
- 用动力计测量同度性部肌肉力量 (峰值扭矩,平均扭矩,扭矩冲动,扭矩稳定性).
- 使用标准化测试 (10米步行,2分钟步行,四方步行测试,收窄梁步行测试) 评估了步行速度,耐力和平衡.
主要成果:
- 对于穿腿假肢使用者来说,残余四肢部延伸器最大扭矩和吸收器扭矩稳定性显著预测了步行速度,耐力和平衡 (差异51-69%).
- 对于移植关节假肢的使用者,完整的四肢部绑架器扭矩冲动与行走速度,耐力和平衡有关 (33-48%的差异).
结论:
- 单侧假肢使用者的行走和平衡表现可能会受到不同的部肌肉和力量方面的影响,这取决于截肢水平.
- 针对性,截肢水平特定的部强度干预措施可能是必要的,以提高行动能力.
- 穿越关节假肢的使用者可能会采用"完整的腿部策略",因为在行走时利用残余四肢部力量的生物力学限制.
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