Thank you. IIRC, the power (speed/strength) requirements for a quality shot put are similar to the power requirements of a good punch. But it's been a long time since I looked into it. If you prefer, you can instead use as examples the guys who professionally break concrete in karate competitions. Or just imagine an amazing athlete who obsessively trains just to punch a stationary object really hard. The point would work either way; I'm not picky.