Musculoskeletal diseases refers to diseases that occur in the nervous, muscular, and bodily tissues in a repeated labor movement or in a posture applied to the musculoskeletal system with unreasonable force. Musculoskeletal disorders are on the rise, and exoskeleton assistive devices are actively being studied as one of the measures to prevent musculoskeletal diseases. However, the research on the development of the performance of the exoskeleton ancillary device has been concentrated, it is not so widely used in industry due to inconvenience. Therefore, it is necessary to design an optimal exoskeleton design considering not only the performance of the exoskeleton assistant device but also the compatibility and the mobility with the human body.
In this study, the exotendon of the non-powered exoskeleton ancillary device was attached to the human body during lifting operation in the sagittal plane. Inverse dynamics analysis was performed using human motion analysis data, and the effects on the human muscles were analyzed by moment, muscle activation, and muscle force according to the number and attachment points of exotendon. If the database is built by performing the same operation in the coronal plane and the various operations after the addition, it is expected that the human body-optimized non-motor exoskeleton assisting device can be designed.