The
Best Body Weight
Exercise You Can Do

It's one of the most effective and most feared moves in all of fitness—the burpee. A punishing full-body exercise that everyone from pro athletes and CrossFit addicts to elite military forces swear by. And here's why: the high-intensity move combines strength training, endurance building and fat burning in one relatively simple move. Best of all, it requires nothing but your will and determination. Invented in 1939 by physiologist Royal H. Burpee as a way of testing one's fitness levels, he used the exercise as his thesis for a doctorate from Columbia University. The military adopted it a few years later as part of its fitness test for men enlisting during World War II.

Over the past seven decades, the burpee has evolved into an intense multi-move exercise that delivers three times the benefits of standard moves like jumping jacks or pushups. "It's one of the most taxing body weight exercises you can do; it requires so many muscle groups—your glutes, quads, core, shoulders, and on," says Mark Zarubi, a Nevada-based trainer who is the Guinness World Record holder for most burpees executed in a day (18,896, in case you're wondering). Thankfully, you don't need to do that many to see some real benefits. And while the burpee now comes in all kinds of variations, you can't go wrong with the gold standard. Here's how to master it.