A computational study of shoulder muscle forces during pushing tasks

摘要: Previous research into the biomechanics of pushing tasks focused on shoulder moment to measure operator stress, without employing a biomechanical model complex. The goal this was explore process developing analysis and design tools that input easily measured parameters quantify stress tasks, suggest maximum acceptable loads for optimal handle heights styles. Shoulder loading modules were used produce look-up table which allows ergonomists estimate percentage muscle force generated by subscapularis muscle, is considered be marker variable increased risk subacromial impingement syndrome. Two methods developed determine forces: an empirically derived equation. second tool replaced recommendation: push with cart near waist height arms extended.