Temporospatial gait analysis of squat walking using a passive lower extremity exoskeleton

Abstract

This study examined the impact of a chair-type wearable exoskeleton (CEX) on ambulation in a squatting posture. Twenty participants underwent forward, backward, and sideways walking trials with and without the CEX. Results indicated a significant (more than 70 %) reduction in anterior and posterior walking speed on CEX, while lateral walking speed remained unaffected (less than 25 %). Despite the diminished pace in forward and backward walking, CEX demonstrated potential as a dynamic assistive device in occupations involving frequent squatting. More importantly, lateral walking with CEX did not exhibit a significant decrease in speed compared to walking without the device, positioning it as a pragmatic solution for individuals operating in lowered workplaces without compromising overall productivity. These findings highlight the potential of the CEX as an effective intervention to enhance mobility while squatting in confined areas, such as during tile installation. The study provides recommendations for safe and effective utilization of CEX in the workplace.