1: Stand on high places such as steps or pedals with heels outward. Hold the wall or handle to support your body. Start inhaling.

2. Exhale, while the thighs slowly tilt the heels. Stop exercising when you feel the most tense calf and start to exhale slowly.

3: Inhale and exhale again, and put down your heels until your thighs are sore. Exhale completely at this time. Try to repeat 10 times.