1. Yamagata: Stand upright, put your feet together, put your center of gravity on the soles of your feet, keep your arms drooping naturally, pay attention to your body posture, keep your abdomen tight, relax your shoulders, straighten your neck, and take several deep breaths.

2.Bharadvajasana: Sit on the ground, keep your feet straight, bend your left leg on the outside of your right leg, put your right hand on your left knee, and put your left hand on the ground. Turn your head to the left, take a deep breath, keep breathing for several times, and then switch to the other side.

3.Ekapada Rajapotasana: Kneel on the ground, straighten your right foot forward, straighten your left leg backward, put your right foot above your left thigh, lean forward, put your hands on the ground, take a deep breath, keep breathing for several times, and then switch to the other side.

4.Trikonasana: Stand upright, feet open, left foot to the left, right foot to the right, arms straight on both sides, bending to the left, left hand on the ground or calf, right hand straight, head up, take a deep breath, keep breathing for several times, and then change to the other side.

These yoga moves can help stretch the chest and spine, increase flexibility and strength, and help improve the problem of hunchback with chest. It is recommended to practice yoga two or three times a week for 20-30 minutes each time, and insist on continuous practice for better results.