Reciprocal Inhibition (RI) is when the therapist uses a client's muscle to stretch the opposing muscle. The therapist takes the muscle that they are wishing to stretch to its point of bind. The therapist then gets the client to use the opposing muscle by moving away from the therapist. When the client relaxes the therapist then moves the muscle to realign the muscle fibres therefore stretching the muscle.

As an example, Muscle Energy Technique (MET) Reciprocal Inhibition (RI) can be applied to the calf when the client is lying supine on the treatment couch. The masseur can place one hand on the tibia just below the knee to isolate the knee preventing it from moving. The other hand is placed around the heel so that the masseurs forearm can be used to dorsiflex the foot. This is one of the techniques used by sports massage therapists.