Skipping is a great cardio workout, but there’s more to it than that. It works all of the body—from your core to keep you upright and your calves every time you bounce, to your forearms and shoulder when you’re turning the rope. Research has found that it burns anywhere between 11 and 15 calories a minute, meaning it’s roughly equivalent to running but you have less chance of injury, as you’re jumping on the spot, rather than running over uneven ground where you are more likely to trip. Want to up your calorie burn? Buy a weighted rope.