Add Yahoo as a preferred source to see more of our stories on Google. Most gyms have plyometric boxes. They're also found in parks with public workout areas. Photo: Getty Images Building body strength ...

Three words: prisoner box jumps. You don’t need weights, just your body weight and a box or bench. If you have limited ...

Other than burpees, box jumps are probably ~the~ most well-known (and most intimidating!) plyometric exercise you can do. If they give you nightmares of scraped shins, I hear you—but I also guarantee ...