The main injured parts included prolapse of lumbar intervertebral,muscles of waist and back myofascitis,epiphysitis of lumbar spine,malposition of lumbar spine and lumbar muscle strain.

发病5的损伤部是椎间盘突出、椎峡部裂、棘突偏歪、椎错劳损;损伤多发生在重要赛事准备期。