Smith plyo presses - lay on a flat bench (or decline or incline) under the smith bar like you would for chest presses. Throw the bar up as hard as you can and catch it when it comes down, continue for all reps.What is a plyo press?
Boxing training is seriously tough isn't it. 3 min of punching sets me on my butt.
I do shoulder presses this way as well at the end of my shoulder workout.
I love boxing drills, especially after an upper body workout! Ouch...