With your arms at chest height, swing your arms backwards as far as possible while still maintaining control. Bring your shoulder blades together and then swing your arms back to the front of your body. Stand with your feet shoulder-width apart and a slight bend in your knees. The more you extend your arms, the more intense the exercise is. Stabilize your spine and torso and do not make any unnatural or jerking motions.
Variation 1: This exercise can also be conducted with a stride (one leg in front, one behind).
