Fig. 4From: Shoulder biomechanics of para-table tennis: a case study of a standing class para-athlete with severe leg impairmentShoulder abduction/adduction angles during table tennis backhand topspin drives between the Class 7 para-player (standing) and able-bodied controls (n = 9). A positive and increasing angle indicates shoulder adduction, while a negative and decreasing angle indicates shoulder abduction. Note: The person shown in this figure is co-author JWY who acted as a model to illustrate the movementBack to article page