Biomechanical analysis of repetitive lifting with passive exosuit assistance: preliminary results

Abstract

Repetitive lifting tasks, common in labor-intensive industries, are a significant contributor to work-related musculoskeletal disorders (WMSDs) and chronic lower back pain (LBP). The continuous physical strain associated with these tasks leads to the accumulation of fatigue, which can reduce performance and increase the risk of injury over time. This study evaluates the impact of passive back exosuit assistance on muscle activation and fatigue during repetitive lifting tasks. Surface electromyography (sEMG) and biomechanical assessments were conducted to analyze kinematics and key muscle groups under two conditions: with and without exosuit support. Preliminary findings indicate that passive exosuit assistance reduces muscle activation levels in the back and lower limbs, effectively mitigating fatigue during repetitive lifting. These results highlight its potential to enhance workplace safety and alleviate the physical demands of repetitive lifting tasks, providing valuable insights into ergonomic innovations aimed at minimizing fatigue-related risks in demanding environments.