Myoelectrically controlled functional electrical stimulation - MeCFES - uses electrodes to interface with the muscle/nerve. The most simple and non invasive method is to use surface electrodes. A simple and very useful application is to 'relay' partially paralyzed muscles in the forearm to control stimulation of same or similar muscles (synergy). In this way simple hand function can be restored, see electrode placements. In theory the same method could be used for other motor functions like walking etc. Implanting the electrodes could potentially also improve the results and augment the number of applications.