Lift your left/right leg. Stretch your arms out the side horizontally, keeping them at chest height. Swing your arms together in front of your body and back out the side.
During the motion ensure you are pinching your shoulder blades together. After a certain number of repetitions or seconds, switch legs. In order to improve balance and make the exercise easier, focus your eyes on a fixed point.
Variation 1: Squat as deeply as possible and stay in this position.
Variation 2: During each swing, perform a single-leg squat.
