Evaluating an Elbow Exoskeleton for Reducing Work-related Musculoskeletal Disorders Risk: An Interdisciplinary Study

This study aimed to evaluate the effectiveness of an elbow exoskeleton in mitigating the risk of Work-related Musculoskeletal Disorders (WMSDs). WMSDs continue to pose significant health and economic challenges in occupational settings, particularly in tasks involving repetitive or forceful motions. Thirty percent of all days away from work cases in the US are attributed to WMSDs. The elbow cxoskeleton, developed by the University of Texas at Arlington Research Institute, offers a potential solution by providing assistive motion, aiming to reduce muscle strain and enhance task efficiency. To assess the elbow exoskeleton's efficacy, three occupational tasks were simulated: (a) a weightlifting task, (b) an assembly task with basic tools (no vibration), and (c) an assembly task with power tools (vibration). Seven participants from the university student population were recruited to perform the tasks with and without the exoskeleton. Metrics, including muscle activation (using Electromyography) and user perception, were captured and analyzed. The results found that the exoskeleton reduced muscle activation, perceived workload, and fatigue, suggesting its potential to assist arm and hand movements across various work scenarios. The findings of this study will contribute to the growing field of wearable robotics aimed at enhancing occupational safety.