Feet apart, about twice shoulder width, toes tilted forward. When squatting, the center of gravity moves to the curved leg and feels the stretching of the opposite leg. Pay attention to keep your back straight and your knees and toes pointing in the same direction. 3 ~ 5 groups every day, 25 ~ 30 times in each group, with a rest of 20 seconds between groups.

The lunge to move the center of gravity is a kind of fitness action, which exists in many sports, such as aerobics or Tai Ji Chuan.