Abstract
Electromyography biofeedback (EMG-BF) has been used to train muscle activation or relaxation but the application of EMG-BF to improve dynamic motion (e.g., walking or pedaling) is open to investigation. This chapter deals with an introduction to our previous work and the latest research we are working on. In our previous study, we investigated whether auditory EMG-BF is effective in improving muscle co-contraction. Unfortunately, we found that individual EMG-BF does not immediately improve muscle co-contraction during pedaling. To improve muscle co-contraction by EMG-BF, it may be necessary to convert muscle activation into muscle co-contraction. In our latest study, we investigated whether visual EMG-BF is effective in stabilizing walking. We found that EMG-BF during normal walking partially stabilizes the center of mass acceleration. Finally, based on our research findings, I will discuss the construction of an EMG-BF system that can contribute to the improvement of dynamic movements.