12 Sports and Recreational Activities and the Calories They Burn



Photo courtesy Dave Green

­If you're game enough to step into the ring, you'll be rewarded with a 324-calorie deficit for every half hour of slugging it out boxing. In addition, your cardiorespiratory fitness and muscular endurance will go through the roof. Make sure you're match fit, though, or it may be all over before you build up a sweat!