步行在意想不到的不平坦地形对跨截肢的人的关节负荷的影响
Kristen M Stewart1,2, Glenn K Klute3, Richard R Neptune1
1Walker Department of Mechanical Engineering, The University of Texas at Austin, 204 East Dean Keeton Street, Austin, TX 78712-1591.
Journal of biomechanical engineering
|March 12, 2024
概括
截肢截肢 (TTA) 的人在不平坦的地形上行走时会经历改变的关节负荷. 这些变化可能会增加受伤风险,凸显了对自适应性假肢技术的需求.
科学领域:
- 生物力学 生物力学
- 假肢和整形手术
- 肌肉骨健康 肌肉骨健康
背景情况:
- 截肢截肢 (TTA) 患者经常表现出不对称的下肢负荷,增加了对关节疼痛和损伤的敏感性.
- 意想不到的不平坦地形对TTA患者的步行负荷模式的影响仍然不太清楚.
研究的目的:
- 通过建模和模拟,研究单边TTA患者在不平坦地形上行走时关节接触力和脉冲的变化.
- 为了在不均的表面上比较TTA和有能力的个体之间的负载模式.
主要方法:
- 利用生物机械建模和模拟来分析在不平坦地形上单步和恢复阶段的关节负荷.
- 对TTA患者的模拟结果与模拟的健身队列进行了比较.
主要成果:
- 与水平行走相比,TTA患者在不均的步骤中表现出多个关节 (不包括假肢脚) 的关节负荷变化.
- 患有TTA的个体的完整肢体在恢复阶段的早期表现出增加的负荷.
- 有能力的个体在不平坦的地形上经历了明显的脚关节负荷增加.
- 在初始姿势中,膝关节负荷的增加在TTA患者中比在两阶段的有能力人士中更为明显.
结论:
- 患有TTA的个体在航行不平坦地形时表现出明显的关节负荷变化.
- 这些改变的负载模式表明肌肉骨应激和受伤风险增加的可能性.
- 对自适应脚脚假肢的进一步研究是有必要的,以减轻这些生物力学变化并降低受伤风险.
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