Stand naturally, feet shoulder width apart, hands akimbo, fingers crossed, palms closed. Then slowly raise your posture to shoulder height, pay attention to straighten your back, use the strength of your arms, open your shoulders backwards, keep your posture for a while when you reach the limit, then slowly recover your posture and practice repeatedly until you feel tired. This exercise can make your back muscles strong, and regular practice can keep your back beautiful.

Thin back exercise 2

Lie flat on the bed, bend your arms and hold your head tightly, while your feet are together and straight. Slowly raise your head with the strength of your waist and abdomen until your shoulders leave the ground, keep your posture for a few seconds, and then slowly resume lying flat.

Thin back exercise iii

Prepare two 500L-L mineral water bottles, stand with your legs slightly wider than your shoulders and keep your body straight. Raise your arm to shoulder height, then bend your arm 90 degrees. Stretch your shoulders to both sides with the strength of your arms, and you can recover if you feel your back tighten.

Thin back movement iv

Legs naturally open shoulder width, waist straight, hands on your sides, body leaning back hard, hands on your hips, arms squeezing back hard. When you reach the limit, keep your posture for a few seconds, and then slowly recover.

Thin back exercise five

Sit on the bed and stretch back with your hands crossed. When you reach the limit, count 15 in your mind, then slowly return to your original posture and practice this movement repeatedly until you feel tired and your waist is tired.