A method for stimulating contraction of a target muscle, the method including: locating a first neuromuscular junction of a target muscle by visualization or palpation, delivering a first stimulus to the first neuromuscular junction, locating a second neuromuscular junction of the target muscle by visualization or palpation, and delivering a second stimulus to the second neuromuscular junction. The first and second stimuli are effective to stimulate contraction of the target muscle. Further, contraction of the target muscle is effective to result in a measurable increase of at least one of: output force of the target muscle or range of motion of a body part associated with extension or contraction of the target muscle.