What could cause a popping sensation in your legs and backside after walking on a treadmill?

Answer:

That popping feeling is called Fasciculation. When you work your muscles they contract and the blood vessels dilate. When you are done exercising and your body is returning to a normal state the twitching can occur. It should go away shortly after you finish your workout. This is normal after a good walk or jog..and usually sitting to rest. The feeling results in a "popcorn" feeling at the skins surface.
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Contributor: Krystal
First answer by ID1195407877. Last edit by Krystal Davidson. Contributor trust: 2 [recommend contributor recommended]. Question popularity: 170 [recommend question].