在半卧式坐着骑自行车的过程中,联合接触力
Claire B Crossley1, Laura E Diamond1, David J Saxby1
1Griffith Centre of Biomedical and Rehabilitation Engineering (GCORE), Griffith University, Australia; School of Health Sciences and Social Work, Griffith University, Australia.
这项研究开发了一种计算方法来分析轮椅半卧式骑自行车的生物力学. 下肢关节接触力在较低的节奏时更高,为脊髓损伤 (SCI) 患者提供更安全的康复策略.
科学领域:
- 生物力学 生物力学
- 康复工程 康复工程 康复工程
- 神经肌肉模型设计
背景情况:
- 从轮椅上半躺着骑自行车是脊髓损伤 (SCI) 的常见康复炼.
- 缺乏这种运动方式的生物力学数据,阻碍了个性化康复计划的开发.
- 功能性电刺激通常与此练习配对,增加了对生物力学理解的需求.
研究的目的:
- 开发一条计算管道,用于评估半躺式骑行过程中的下肢动力学,动力学和关节接触力 (JCF).
- 为优化SCI和其他神经系统疾病的轮椅骑自行车康复提供基础数据.
主要方法:
- 开发了一个计算管道,结合了人体测量仪的刚体模型和电肌图信息的神经肌肉骨模型.
- 11名没有受损的参与者以两种节奏 (40和60rpm) 和三种功率输出 (15W,30W,45W) 进行了半卧式骑行.
- 计算了下肢动力学,动力学和部,膝盖和脚的JCF.
主要成果:
- 在经过测试的节奏和权力之间,共同的游览是一致的.
- 联合时刻和JCF在40到60rpm之间有显著差异.
- 峰值JCF在40rpm时明显大于所有测试功率输出的60rpm.
- 平均旋转功率和峰值JCF之间的相关性很差.
结论:
- 开发的计算管道为分析轮椅半卧式骑自行车生物力学提供了一种方法.
- 较低的节奏显著增加了峰值关节接触力,这表明SCI患者的潜在风险.
- 这些发现为优化SCI康复中的轮椅骑自行车干预提供了关键数据.
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