相关实验视频

Updated: Jul 4, 2025

Lower-Limb Biomechanical Characteristics Associated with Unplanned Gait Termination Under Different Walking Speeds

Lower-Limb Biomechanical Characteristics Associated with Unplanned Gait Termination Under Different Walking Speeds

Published on: August 25, 2020

用悬挂背包行走的生物机械后果

Xin Lin, Shucong Yin, Hao Du

IEEE transactions on bio-medical engineering

|January 29, 2024

概括

悬挂式背包通过改变人与载荷的相互作用来减少载荷运输期间的机械劳动和代谢成本. 这导致了显著的节能,提高了步行效率.

科学领域:

生物力学生物力学
人类运动科学人类运动科学
人体工程学就是人体工程学.

背景情况:

载荷运输显著增加了代谢成本和机械工作.
传统的背包在能源消耗方面提供了有限的生物机械优势.
了解载荷悬挂机制是优化载荷系统的关键.

研究的目的:

研究悬挂背包的能量效益背后的生物机械机制.
用悬浮负载量化机械工作和代谢成本的减少.
分析负载悬挂如何影响行走期间的人与负载的相互作用.

主要方法:

八名成年人以5公里/小时的速度行走,在一个定制的悬挂背包中装有15公斤的负载.
负载悬挂的刚度在四种组合中有所不同.
在行走试验中测量了机械工作和代谢成本.

主要成果:

悬挂的背包使积极工作减少了23.35%,负面工作减少了24.77%.
在所有暂停条件下,新陈代谢成本下降了12.51%.
减少机械工作主要观察到在单支阶段.

结论:

悬挂式背包在身体和负载运动之间产生相位转移,减少机械工作.
这导致质量轨迹的中心变得更平,并减少了垂直的干部运动.
这些发现对于设计更高效的载荷设备至关重要.

更多相关视频

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

Using Gold-standard Gait Analysis Methods to Assess Experience Effects on Lower-limb Mechanics During Moderate High-heeled Jogging and Running

Using Gold-standard Gait Analysis Methods to Assess Experience Effects on Lower-limb Mechanics During Moderate High-heeled Jogging and Running

Published on: September 14, 2017

相关概念视频

Impact Loading

Impact loading occurs when a moving object collides with a stationary structure, such as a rod with a uniform cross-sectional area fixed at one end. Under these conditions, the rod absorbs the kinetic energy from the striking object, leading to deformation and subsequent stress development. As the rod returns to its original position and reaches maximum stress, the absorbed energy, initially manifested as kinetic energy, transforms entirely into strain energy.
In cases of elastic deformation,...