Assessment of muscular fatigue during cyclic contractions based on joint angles

摘要

We measured surface myoelectric signals of the extensor carpi radialis muscle and wrist joint angle during cyclic contractions. Then, we evaluated the time-varying behavior of muscular fatigue indices at each segment of an epoch determined by statistical features of myoelectric signals or wrist joint angles. The results suggested the segmentation with the wrist joint angles could express the progression of muscular fatigue during cyclic contractions better than the segmentation with the statistical features.