[Animated fitness tutorial ~ Air pedaling] mainly exercises abdominal muscles.
Lie on your back on a training mat, with your hands by your head and your arms open.
Slowly pedal the bicycle with both legs, and at the same time touch the left knee with the right elbow, and then touch the right knee with the left elbow after returning.
Train 4 groups every other day, each group 20-25 times.
