how can your leg bounce so quickly when u do the leg bouncy thing

Question

how can your leg bounce so quickly when u do the leg bouncy thing

In: Biology

Answer 1

Muscle reaction in your legs is faster than you think.

Try to remember how much you move your legs while you run, how quick they are, now compare that with the movement you can do with your arms. And I don’t mean flailing them, I mean moving them up and down the same way.

You see that your legs are capable to be faster than your arms.