人类在硬地与沙地上行走运动的生物力学比较
Biomechanical Comparison of Human Walking Locomotion on Solid Ground and Sand
AI总结：
本文通过采集20名成年人在硬地与沙地行走的三维运动和生物力学数据，比较两种地形下的步态、关节力矩及刚度特征，揭示了人类在易屈服地形上采用不同运动控制策略，并为活动识别和辅助设备研究提供数据来源。
摘要：
目前关于人体运动的研究主要集中于硬地行走条件。本文提出了人类在硬地和沙地上行走运动的生物力学比较。我们收集了一个新颖的数据集，包含20名身体健全成年人在硬地和沙地上运动的三维运动和生物力学数据。我们介绍了数据采集方法，并报告了传感器数据以及关节生物力学的运动学和动力学特征。本文对人体步态和关节刚度特征进行了综合分析。运动学和动力学分析表明，与硬地行走的模式相比，人类在沙地上行走运动表现出不同的地面反作用力和关节力矩特征。这些步态差异反映出人类针对沙地等易屈服地形条件采用了运动控制策略。该数据集还为研究人员研究人类活动识别以及在不同地形上行走的辅助设备提供了运动数据来源。
英文摘要：
Current studies on human locomotion focus mainly on solid ground walking conditions. In this paper, we present a biomechanic comparison of human walking locomotion on solid ground and sand. A novel dataset containing 3-dimensional motion and biomechanical data from 20 able-bodied adults for locomotion on solid ground and sand is collected. We present the data collection methods and report the sensor data along with the kinematic and kinetic profiles of joint biomechanics. A comprehensive analysis of human gait and joint stiffness profiles is presented. The kinematic and kinetic analysis reveals that human walking locomotion on sand shows different ground reaction forces and joint torque profiles, compared with those patterns from walking on solid ground. These gait differences reflect that humans adopt motion control strategies for yielding terrain conditions such as sand. The dataset also provides a source of locomotion data for researchers to study human activity recognition and assistive devices for walking on different terrains.
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