5Cools A, Witvrouw E, Declercq G, Vanderstraeten G, Cambi- er D. Evaluation of isokinetic force production and associated mus- cleactivity in the scaptdar rotators during a protraction - retraction movementin overhead athletes with impingement symptoms[ J ]. Br J Sports Med, 2004,38:64-68.
6Wu G, van der Helm FC, Veeger HE, et al. ISB recommen- dation on definitions of joint coordinate systems of various joints for the reporting of human joint motion - - Part II: shoulder, elbow, wrist and hand[ J]. J Biomech, 2005,38 (5) :981 - 992.
7Cools AM, et al. Rehabilitation of scapular muscle balance [J]. Am J Sports Med,2007,35(10) :1744 -1751.
