Tone your arms and legs with this variation of classic Jumping Jacks.
- Stand with your feet shoulder-width apart and extend your arms straight out to either side with palms facing down. This is the starting position.
- Jump and cross your right arm over your left and your right foot over your left. Jump back to the starting position, then cross with the opposite arm and foot.
- Continue alternating sides and repeating this movement for 30 seconds. Don't allow too much time for recovery between jumps so you keep your heart rate up!