Double Unders

This cardio classic builds speed, agility, and coordination. And it burns lots of calories, too!
Double Unders
  1. From a standing position, hold a jump rope in both hands, rope behind your heels.
  2. Push off your toes, jump into the air, and quickly rotate your wrists, so that the rope makes two full revolutions beneath your feet.
  3. Land softly and repeat.