 Scapular winging has been observed to disrupt scapulohumeral rhythm, contributing to decreased flexion and abduction of the upper extremity, as well as a loss in power and the source of considerable pain.A winged scapula is considered normal posture in young children, but not older children and adults.The severity and appearance of the winged scapula varies by individuals as well as the muscles and/or nerves that were affected.