Abstract: A garment for electrically stimulating muscles is provided to be used for, e.g., rehabilitation or exercise whereby an electrode can be conveniently provided at such a position as allowing the electrode to stimulate the nerve-muscular junction of a muscle to be moved in toning up the muscle through electrical stimulation on the muscle by taking advantage of the muscular contraction caused by electrically stimulating the muscle.

Abstract: An improved muscle strengthening apparatus is disclosed which causes “eccentric contraction” of an antagonist muscle of a limb through electrical stimulation so as to apply so-called “closed-kinetic-chain exercises” for the muscles involved to thereby increase the strength thereof. Flexing or extending motion of a knee joint is sensed by a sensor to indicate contraction of the agonist muscle. Upon contraction of the agonist muscle, electrodes placed over the antagonist muscle are energized to cause the eccentric contraction thereof. The invention provides a portable home gymnasium in that it is relatively small, light-weight, cost effective and easy to transport and also relatively simple in construction.