In this video, the client was experiencing low trapezius referral pain to the top of the right shoulder during scapular adduction.  Adding the vibration during the movement masked the referral, the client got more pain-free ROM and upon subsequent movement...

 This in-depth video explains correct shoulder alignment in the yoga pose, downward facing dog. This video also covers: shoulder anatomy and biomechanics, scapulohumeral rhythm, cues for yoga teachers to use in classes, trigger points as the true sources of most pain (not joint injury),...