Stand tall with your feet hip-width apart and parallel. Focus your gaze at a point in front of you. Transfer your weight onto your right foot, pressing it firmly into the ground. Inhale as you lift your left knee and sweep your arms out to the sides and into a T position with your palms down. Keep your hips level and right foot pressed into the ground to fully engage the muscles of your standing leg. Lift your left knee as high as possible. Relax your left foot, even as you keep the knee lifted. To release, exhale and lower your arms to your sides and your left foot back to the ground. Repeat on the opposite side.