No.... that's actually incredibly false, When people swing with their arms it has less to do with their arms but rather the strength of their lower body particularly the legs. You'll see all of the worlds best boxers have strong legs/great foot work. Point is the arms are a minor part of the power that goes into a swing . Other muscles are involved which means a regular person couldn't swing like Mike Tyson. Yonji doesn't have anywhere near the amount of muscle Queen has as an Ancient Zoan. So that's that....