“…Typical kinematic measurement techniques of attaching reflective markers over anatomical landmarks do not adequately track the scapula as it glides beneath the skin surface 9 . Various methods have been adopted throughout the literature to overcome these difficulties, including; imaging (X-ray or magnetic resonance) [10][11][12][13][14] , goniometers 15,16 , bone pins [17][18][19][20][21][22] , manual palpation 23,24 , and the acromion method 3,5,19,25 . Each method, however, has its limitations which include: exposure to radiation, projection errors in the case of two-dimensional image based analysis, require repeated subjective interpretation of the location of the scapula, are static in nature or are highly invasive (e.g.…”