A Pilot Study Evaluation of a Passive Shoulder Exoskeleton for a Drilling-fastening Task

Exoskeletons have been considered as a method to mitigate Work-related Musculoskeletal Disorders (WMSDs) in industry. However, it is still unclear how they affect work performance and processes that have accuracy and precision requirements (e.g., drilling, riveting, welding). In this study, the effect of a passive shoulder exoskeleton on a drilling-fastening task performance (the flushness and tilt angle of the fastener) and user perceptions (discomfort, fatigue, and workload) was examined. Participants ( n = 13) performed a drilling-fastening task with the exoskeleton present and absent. Results support that the exoskeleton did not influence the quality of the drilling task, perceived fatigue, or perceived workload. There were mixed results on perceived discomfort, with participants feeling less discomfort, similar discomfort, and greater discomfort based on the body location. This study provides added context for industry decision-making on using passive shoulder-support exoskeletons as a method to mitigate WMSDs.