If you’re not one to shy away from a challenge — and a little fun — in your workouts, get ready to jump around! Box jumps are perfect for seasoned exercisers looking for a challenge. If you’re a ...

Box jumps are particularly effective for this. How do you perform them? What are the risks? And how do beginners get started?

This boy born without arms refused to quit on the box jump. "Do it now. Jump up on that box now," the trainer yells. "Go!" Tim Bannon, 14, born without arms, gives it a try. He comes up short trying ...