Posture is often affected in Parkinson's disease. Postural abnormalities belong to the motor
axial involvement. Generally, postural dysfunction induces clinical impairment at the latest
stages of the disease, except in late-onset idiopathic Parkinson's disease and in atypical
parkinsonian syndromes. Posture may be affected in its orientation component (stooped
posture, camptocormia, Pisa syndrome) or in its balance component (loss of postural
reflexes). Overall, postural impairment is poorly improved by levodopa, which implies that it …