抄録
This study aim to develop a method to estimate stress distribution within forearm muscles using electromyography computed tomography (EMG-CT) method. Three subjects performed gripping tasks using three hand grips, while EMG signals around the forearm were measured. An EMG conduction model was constructed using an outline of the subject's forearm geometry. Distribution of muscle activity within the forearm was calculated using EMG-CT method. To obtain the stress, we calculated the trend of the relationship by linear regression. As a result, stress level within the forearm muscles was presented in a tomographic image. The highest stress increased from 0.08±0.01 to 0.18±0.02 MPa when gripping force increased from 77 to 242 N. This study provides a novel method of measuring stress in forearm muscles.
