1, put your head in your hands, hang your head down, and bend your knees with your left leg. Lift your right leg straight, as close as possible to your head, keep your left leg bent, keep your feet off the ground, and push the rectus abdominis.

2. Lie flat on the yoga carpet with your hands open, your legs together, your knees bent, and your heels and knees together. Knees close to chest, repeat 10 times.

3. Lie on the yoga carpet on your back, with your left leg and knees bent, your right leg straight, and your hands behind your head. Push the elbow forward, leave the upper body off the ground as much as possible, and do 10 abdominal contractions.