在患有单侧关节截肢的个体中,在亚最大运行期间遵守简单的弹质量机制
Ying Wai Tang1,2, Akihiko Murai2, Hiroaki Hobara3
1Department of Human and Engineered Environmental Studies, University of Tokyo, Kashiwa, Chiba, Japan.
Journal of applied biomechanics
|January 22, 2026
概括
跑步假肢紧密跟随弹式倒置摆形 (SLIP) 模型机制,与截肢者未受影响的肢体不同. 这种粘附在各种跑步速度中保持,优化受影响四肢的步态.
科学领域:
- 生物力学 生物力学
- 假肢工程 假肢工程
- 人类运动科学科学 人类运动科学
背景情况:
- 弹式倒挂 (SLIP) 模型描述了优化的运行机制.
- 患有单边腿骨转移截肢的个体经常使用特定于跑步的假肢.
- 了解截肢者的步行机制对于假肢设计和康复至关重要.
研究的目的:
- 为了比较实验垂直地面反应力 (vGRF) 与截肢者的SLIP模型预测.
- 评估在跑步期间受影响与未受影响四肢的SLIP机制的步态坚持.
- 为了研究跑步速度对该群体SLIP模型坚持的影响.
主要方法:
- 九名患有单边腿骨转移截肢的参与者在仪器跑步机上以不同的速度 (30-80%的最大速度) 跑步.
- 在实验中测量了垂直地面反应力 (vGRF).
- 实验中的vGRF数据与SLIP模型预测的vGRF数据进行了比较,使用R2适合性统计数据.
主要成果:
- 与未受影响的肢体相比,受影响的肢体的vGRF对SLIP模型的坚持明显更高.
- 对于任何四肢的不同运行速度来说,在SLIP模型坚持方面没有观察到显著差异.
- 运行特定的假肢展示了SLIP一致的机制,而不受影响的肢体使用非SLIP策略.
结论:
- 特定于跑步的假肢有效地复制SLIP机制,建议对受影响的肢体进行优化的步态.
- 不受影响的肢体采用了偏离SLIP机制的补偿策略.
- 基于SLIP的建模适用于移骨截肢患者的受影响四肢,有助于假肢的开发和了解跨速度的步态保存.
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