Introduction. Adolescent idiopathic scoliosis (AIS), described as a complex three-dimensional spinal deformity, is thought to affect neurophysiological processes that result in loss of proprioceptive input. The main purpose this case study investigate the effect Proprioceptive Neuromuscular Facilitation (PNF) on spine joint reposition (JR) sense 20-year-old with AIS. Methods/ Case Description. ...