Parkinson disease is a motor system disorder that causes trembling, stiffness, and trouble moving.
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Parkinson disease is a movement disorder that can cause muscles to tighten and become rigid. It can make it hard to walk and engage in daily activities.
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Ataxia means without coordination. People with ataxia lose muscle control in their arms and legs, which may lead to a lack of balance, coordination, and trouble walking. Ataxia may affect the fingers, hands, arms, legs, body, speech, and even eye movements.
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Dystonia is a body movement disorder. It causes your muscles to contract, move involuntarily, or get stuck in an abnormal position.
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