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dystonia
dystonia Dystonia is an abnormal posture or body position caused by simultaneous contraction of muscles that normally work against each other in the same body region.
Dystonia is an abnormal posture or body position caused by simultaneous contraction of muscles that normally work against each other in the same body region. It most often involves the large muscles of the trunk and the areas around the shoulders and hips, and it may occur in repeated or ongoing episodes.