Off the top of my mind swimming would use pretty much every muscle (legs, arms, chest even the muscles in the neck) and while not at a competitive level most people can do it competently.

I'm more impressed with the rings in terms of how the muscles in the body are utilized and that is more focused with just the upper body.


I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.

-Max Payne