To Use a TENS Unit to Build Muscle, you have to apply a small amount of rubbing alcohol to a cotton pad and thoroughly wipe the area to be treated. You need to dry the area well. After that, apply a thin layer of gel to the underside of each electrode and apply the electrodes to the skin directly above the muscle to be treated. Then, secure the electrodes to the skin with tape. Next, Hook the pin connectors to the electrodes and plug the other ends of the wires into the TENS unit.
Forth, turn the knobs on the front of the unit up slowly to the desired levels. You must leave the electrodes in place for up to thirty minutes. After that, turn the knobs to the off position. Unplug the wires from the unit and from the electrodes. You should Remove the electrodes from your skin and wash with soapy water.