Fig. 7From: EMG Biofeedback for online predictive control of grasping force in a myoelectric prosthesisSummary results (mean ± standard deviation) for the force tracking task in two feedback conditions over all subjects: root mean square tracking error in (a) able-bodied and (c) amputees, and the number of force drops in (b) able-bodied and (d) amputees. The horizontal bar denotes statistically significant difference (***, p < 0.001)Back to article page