By the same token, I can see a power clean improving force production for a saggital plane hip drive. So this may improve power generation with jumps, kettlebell swings, and it would probably improve things like turns in swimming and starts off a block for sprinters. But if you're, say, a boxer or a pitcher and you need upper body explosive power, then will power cleans sufficiently train upper body power? (yes, yes, I know a lot of their power comes from a hip drive, but there is also arm speed).