基于"恰到好处"策略的不均行走的最佳推进:以中断的推进方式行走是机械上昂贵的
Seyed-Saleh Hosseini-Yazdi1, John E A Bertram2
1Department of Biomedical Engineering, Schulich School of engineering, University of Calgary, AB, Canada; Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, AB, Canada.
Journal of biomechanical engineering
|September 6, 2025
概括
最佳的推开机制使步行和步的效率提高. 干扰会增加能源成本,特别是减少步骤长度或视觉障碍,影响年轻人和老年人不同.
科学领域:
- 生物力学
- 人类的运动
- 机器人技术
背景情况:
- 了解行走机制对于设计辅助器件和假肢至关重要.
- 之前的模型简化了推送动态,限制了对能源成本的洞察力.
- 推进中断和补偿策略对能源的影响仍未完全量化.
研究的目的:
- 为了获得最佳的分析推卸策略行走和步进的机动.
- 量化与中断的推出和各种补偿机制相关的能源成本.
- 调查步行速度,步骤高度,步骤长度以及视觉限制对推开效率的影响.
主要方法:
- 开发了一种动力简单的行走模型 (点质量与刚性无质量腿).
- 根据步行速度和步骤的高度分析得出最佳推进.
- 模拟的步行场景中断了推出,并使用经验数据来量化能量成本.
主要成果:
- 更高的步行速度使得更大的步进幅度仅仅使用推开.
- 与最佳推出相比,延迟推出显著增加了能源成本 (高达7.5倍).
- 减少步骤长度和视觉障碍进一步增加了步骤过渡后的补偿成本,特别是在老年人中.
结论:
- 最佳的推开取决于速度,对于高效的运动至关重要,尤其是在升级过程中.
- 破坏推出需要补偿策略, 造成实质性的能量惩罚.
- 步骤长度和视觉输入对运动效率起着关键作用,可能会定义步态参数的极限.
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