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 ...

Few things are as versatile as apple cider vinegar or a little black dress. But there’s one thing — which you’ve probably seen at your gym — that comes close: a box. Sometimes called a plyo box, this ...

There are two types of people in this world: those who love box jumps and those who despise them. If you're in the latter group and box jumps are too harsh your knees — or you're just afraid of ...