THE 'SWAY BACK' POSTURE: IDENTIFICATION, CORRECTION AND ITS EFFECT ON INJURIES AND SPORTS PERFORMANCE
Posture and Postural Types are a source of constant debate, with some authors saying there is no relationship between abnormal posture and pain and dysfunction. Others, however (Kendall, 1992; Sahrmann 2002), have addressed & identified postural dysfunctions and how these change loading onweightbearing joints and affect the biomechanics and kinematics of the adolescent and active individual. Optimal posture was defined in 1947 by the Posture Committee of the American Academy of Orthopaedic Surgeons as a “state of balance that protects the supporting structures against injury or protective deformity”. Ideal posture from the sagittal view is such that a line drawn showing the centre of gravity from the foot to the head should run from anterior to the lateral malleoli, through the knee and hip joint, through the vertebral bodies of the lumbar and cervical spine, bisect the centre of the humerus and exit the head after bisecting the ear.