“…Systems that target the final user commonly apply interfaces in the equipment, such as displays, potentiometers, and buttons, or alternatively may use position sensors and myoelectric signals (EMG) to initiate the movements whose parameters are already preconfigured, as mentioned before [ 8 , 14 , 16 , 18 , 19 , 20 ]. Recent advances have also shown the use of brain–machine interfaces (BCI) as user intention in FES systems [ 7 , 21 , 22 , 23 , 24 , 25 ]. However, the two neuroprostheses available on the market that are currently known use wireless communication (Bioness—radio frequency and ReGrasp—Bluetooth), buttons on the control unit (both), and head movements from one earpiece (ReGrasp).…”