Originally Posted by
queerpunk
Yeah, I've also heard that. So, why not just vertical jumps?
I don't know why box jumping is necessary, instead of just jumping or just vertical jumps, unless it's for the measurement ability of box jumping. But given the leg-up fact, really seems like straight-up vert jumps would be better.
Maybe the box is to ensure you get to a certain height, whereas a plane vertical jump could get lower without you realising it?
My coach has us do 'frog jumps' at the end of most training sessions. Except instead of just crouching down and jumping up with straightened legs, you have to explode up and pull your knees up as well.
After 9 x500m or whatever, 2 sets of ten of those can be pretty hard to complete.
The theory is that it teaches your muscles to deliver explosive power, once they are already fatigued.