Why do muscles atrophy when they are not used?
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Muscle atrophy is when muscles waste away. The main reason for muscle wasting is a lack of physical activity. This can happen when a disease or injury makes it difficult or impossible for you to move an arm or leg. A symptom of atrophied muscles is an arm that appears smaller, but not shorter, than the other arm
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Explanation:
If a muscle does not get any use, the body will eventually break it down to conserve energy. Muscle atrophy that develops due to inactivity can occur if a person remains immobile while they recover from an illness or injury. Getting regular exercise and trying physical therapy may reverse this form of muscle atrophy.
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