Biceps, Fitness
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Why Do Sprinters Have Muscular Arms?

Would like to know why all Olympic sprinters have muscular arms. They probably have muscular arms to help them sprint, but the reason is unclear. These are the two paradoxes you cannot fathom!

Heavy arms increases the force the legs have to supply to move the body. So it seems big arms will slow down a sprinter.

The legs are stressed far more than the arms when sprinting, so it is common sense that legs would grow from training. However, the arms only swing against the air, so how are they stressed enough to grow? Read more