Since we are all individuals our muscles are different in size, length and even location to some extent. Simply, adjust pad placement until you have properly located the two ends of the targeted muscle group. Not likely if used as intended and instructions are followed. In some cases, the use of electrodes can produce temporary redness. This will not only void your warranty, but may expose you to unnecessary risk as well.
Battery power is used to help ensure safety.
Gymform Plus FAQ s 4. Section of Guidebook . In order for the muscle to receive the signal it must be transmitted between positive and negative poles to create a complete circuit. This is why Gymform Plus has colored wires in groups of two, so that each pair corresponds to one positive pole and one negative pole. It the electrodes are not placed in the correct position, the signal cannot complete the circuit and the muscle will not receive the signal.