“…Functional electrical stimulation (FES) stimulates motor nerves in patients with upper motor neuron lesions 3 ) , leading to an increase of the dorsiflexor strength on the paretic side 4 ) , a decrease of gastrocnemius (GCM) muscle tone and stiffness 5 ) , and improvement of gait ability 6 ) . On the other hand, transcutaneous electrical nerve stimulation (TENS) stimulates sensory nerves, causing pain relief 7 ) , and it increases the presynaptic inhibition, reducing the muscle tone, stiffness, and spasticity 8 , 9 ) .…”