Matching Pairs PT_POSTURAL DYSFUNCTION (D)Online version Match the columns by Katarzyna Anna Nowak 1 2 3 4 5 6 7 Flat back syndrome is often caused by muscle imbalances resulting from poor standing or sitting posture. Cradling your phone between your ear and shoulder can lead to neck stiffness and pain. Slouching can place strain on muscles and soft tissues. Lumbar lordosis or swayback can be caused by excessive abdominal weight. Hunching over your phone can lead to a rounded back or kyphosis. Leaning on one leg for too long can result in muscular strain and lower back pain. Poking your chin can result from a poorly adjusted workstation.