One session of Matrix Rhythm Therapy is scheduled accordingly to treat the area involved in pain. Your therapist will schedule a session for you after a. With Matrix Therapies ® you can clear the negative influences of people and events in the past, so that you can have greater success, happiness and reach more. (Pictured for the shoulder only) Patient or therapist -assisted active range of motion. This is usually prescribed for gentle stretching or strengthening for a very.