Sitting cross-legged on the ground, holding a thick book in each hand, elbows bent upward at right angles and opened to both sides, and upper arms parallel to shoulders. Inhale, tighten the abdomen, straighten your arm when exhaling, stick it on your ear, hold it for 5- 10 seconds, and then return to the initial action. Repeat 10-20 times.
Similarly, sit on the ground, hold a thick book in each hand, raise your arms, bend your elbows at right angles, open them to both sides, move your elbows to your chest until your arms are parallel and your palms are opposite, and pause for 5- 10 seconds. Repeat this opening and closing for 10-20 times.
Extended data:
User exercise precautions:
1, don't exercise too much. People who used to take part in physical exercise often can increase the amount of exercise appropriately. Generally, the pulse should not exceed 1 10 beats/min and 120 beats/min. Old comrades who didn't participate often or at all before should choose suitable sports.
2. Be sure to do warm-up activities before exercise, and warm up for about 10~ 15 minutes. Doing so can prevent ankle sprain, waist sprain and nerve damage.
3. Do some tidying activities after exercise. Because people's capillaries dilate after exercise, if they sit still on the ground and their blood can't return to the heart at the far end of the body, they will feel depressed. Old comrades with hypertension and heart disease should take a walk after exercise, buffering 10 minutes or so.
4. Master the exercise time. Old friends exercise for about 40 minutes at a time, not less than 30 minutes on the left and not more than 1 hour on the right.
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