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Do You Lose Arm Muscle After Wearing a Cast?

by  S. GREY
author image S. Grey
S. Grey has a Master of Science in counseling psychology from the University of Central Arkansas. He is also pursuing a PhD and has a love for psychology, comic books and social justice. He has been published in a text on social psychology and regularly presents research at regional psychology conferences.
Do You Lose Arm Muscle After Wearing a Cast?
Your doctor is a huge factor in strengthening your arm once your cast is off. Photo Credit: jacus/iStock/Getty Images

You either use it or lose it, esp when your arm is in a cast. If you break or sprain your arm and need a cast, chances are your muscles will get a bit weaker. Fret not though -- through activity, you can get your arm back in shape. So, let your arm heal in the cast then work on getting it back in use.

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When your arm is in a cast, you can lose muscle from what is known as disuse atrophy. According to the Medline Plus report "Muscle Atrophy," your arm muscles decline due to not using them as much when it's in a cast. The longer your arm is in a cast, the weaker your muscles become . To regain muscle strength in your arm, do exercises such as a dumbbell curl, in which you raise a dumbbell and rotate your forearm so your palm faces your body. This exercise hits your forearm and biceps, helping your arm regain muscle in multiple spots. Only do these exercises with the help of a physical therapist or under the advice of your physician. You can also keep the strength in your casted arm by training your opposite side. According to Walter Frontera in "The Encyclopaedia of Sports Injuries," if you train your opposite, uncasted arm, you can still help your other arm retain strength. So, with a broken or sprained arm, train your opposite side so that it takes less time to recover when your arm comes out its cast.

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