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一个基于步行阶段和悬挂背包的预测性行走能量模型.

Tao Zhen1, Qiuxia Chen2

  • 1National Defense Science and Technology Innovation Institute, PLA Academy of Military Sciences, Beijing, 100071, China.

Heliyon
|October 24, 2024
PubMed
概括

一个新的悬挂背包设计通过减少肌肉疲劳来提高行走的能量效率. 该系统使用步行阶段分析估计代谢成本,有利于军事和日常载荷活动.

科学领域:

  • 生物力学 生物力学
  • 人类运动分析分析
  • 人体工程学就是人体工程学.

背景情况:

  • 携带重载荷会导致肌肉疲劳,影响耐力和健康.
  • 悬挂式背包提供了改善行走能效的潜力.

研究的目的:

  • 为了设计一个轻量级的悬挂背包.
  • 开发一种基于步行阶段的代谢成本估计模型.
  • 分析悬挂背包与普通背包的生物力学影响.

主要方法:

  • 使用了四个惯性测量单元 (IMU) 和六个灵活的压力传感器.
  • 用肌肉时刻平衡理论进行肌肉张力分析,将定义的步态分为四个阶段.
  • 计算了能源成本约束因子 (ECCF) 指数,包括步行阶段和背包数据.
  • 进行了实验,七名受试者在不同的速度下携带16.5公斤的背包,比较悬挂 (SB) 和普通 (OB) 背包的情况.

主要成果:

  • 悬挂的背包减少了脚部和肩部的压力.
  • 在5.0公里/小时时速下,SB的地面反应力 (GRF) 降低了11.59%,肩部反应力 (SRF) 降低了13.22%,与OB相比.
  • ECCF指数提供了准确的代谢成本估计.
关键词:
背包背包背包背包背包背包背包背包步行阶段 步行阶段走路能量的能量.

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结论:

  • 设计的悬浮背包有效地减少了载荷运输期间的生物机械应力.
  • 基于步行阶段的代谢成本模型提供了准确的预测.
  • 悬挂式背包可以提高行走效率,并可能减轻疲劳.