Muscle activity control using an EMG feedback based pneumatic artificial muscle power-assist device

Results of earlier studies have demonstrated that the myoelectric potential of biceps changes irregularly during forearm lifting, irrespective of operating conditions. A power-assist device that provides an assist input with certain characteristic has been developed. A certain assistive effect by that power-assistive device was confirmed, this but this device was unable to reduce muscle activity that was leading to fatigue of biceps during lifting motions. Therefore, this study used an electromyographic (EMG) feedback system for bicep muscle activity control during object-lifting motions.