- Start standing with your feet hip-width apart and your knees slightly bent.
- Jump sideways to the right, landing on your right foot and bringing your left foot behind you, not letting it touch the floor.
- Reverse direction and jump the left, landing on your left foot and bringing your right foot behind you.
- Continue to alternate jumping to the right and left for 30 to 45 seconds.
Low-impact option: Rather than jumping from side to side, you can step quickly from side to side (so one of your feet is always touching the ground).