Windmills

How to do it

1. 01Lie on your back with your arms extended out to the sides and your legs straight. This will be your starting position.
2. 02Lift one leg and quickly cross it over your body, attempting to touch the ground near the opposite hand.
3. 03Return to the starting position, and repeat with the opposite leg. Continue to alternate for 10-20 repetitions.

Alternatives & substitutions

Same movement pattern, same primary muscles — swap by what you have.