On an exhalation, stand up and lower your arms to your sides as you lift one knee toward your chest. Keep your back straight, your foot flexed, and your head in line with your spine. On an inhalation, lower your leg, raise your arms, and sit back into Powerful Pose. Alternating between Powerful Pose and One-Leg Balance strengthens your abs, arms, and legs, and helps develop coordination and physical balance in challenging and changing situations. Repeat positions 2 and 3, alternating legs as many times as you like. Finish in Powerful Pose.