Thin arm movement 1: single arm stretching
Put the pillow on the floor, press your arms on the pillow, and straighten your legs backwards to make your body straight. Stretch your right arm to the right, sweep across the floor, and then lift it. After the pause, put down your arm and return to your original position, and try to keep your body in a straight line during the whole process. Lift your arm forward, keep it parallel to the floor, then lift it up and return to its original position. Keep moving for 30 seconds and move with the other arm. Then take a deep breath for 30 seconds and relax.
Thin arm movement 2: load-bearing swing arm
Stand up straight with a certain weight of books in both hands. Put the book on your chest and tighten your elbows so that they are close to your sides. Lower your arms to your thighs, then lift them to shoulder height and bend your arms inward. Resume standing posture, repeat the action for 30 seconds, then reverse the action order for 30 seconds, and then take a deep breath for 30 seconds to relax.
Thin arm action 3: palm crossing
Stand up straight, then squat down, put your palms in front of your feet and press down on the floor. The distance between your palms is shoulder width. Then cross your hands forward, just like walking, until you form a push-up posture. Pause, then step back and return to your standing position. Repeat this action for 30 seconds, then take a deep breath for 30 seconds to relax.
Thin arm action 4: back support and leg lift
Put your palms behind your back to support your body, sit on the floor with your fingers back to your face, bend your knees, and put your feet flat on the ground. Then lift your hips, lift your left foot and hook your toes. Elbows bend slightly and hips sink. After a short pause, push your back upward and keep your legs in the same position. Repeat the action for 30 seconds, then change legs to do the action, and finally take a deep breath for 30 seconds to relax.