Sidelying SUBSCAPULARIS technique 23of💯 The subscap is one of the four rotator cuff muscles. Due to his anatomy is frequently missed during regular bodywork treatments. This muscle internally rotates the humerous. clients of ours who spend so much time in in flexion such as sitting at their work desk sitting in traffic etc. Will commonly present with shortness, poor guide quality and triggerpoints in this area. Dysfunction in this muscle can greatly affect shoulder mobility especially overhead