STURDY: Heavy-duty steel plyo boxes with a tapered design and large, stable base for confident jumps. NO-SLIP: Each plyo box is equipped with stable rubber stoppers and a non-slip top for optimal ...

“Plyometric movements are fast ... To modify, step through the move instead of jumping. Start with a low box, like a step. (As you progress, increase the height.) Squat down, then jump up ...

The Research Says: Heavy resistance training with nearly maximal loads has been shown to improve running economy and time ...