The simple operation method is as follows: 1. Lie on your back and lie flat, with your feet tightly together, and lift 10 cm, keep this action for about 10 second, then put your feet down and repeat this action 50 times, preferably 100 times. Second, lie flat with your feet together, bend your knees, put your hands behind your head, raise your head slightly, look at your knees, and do sit-ups 50- 100 times. 3. Sit in the chair face forward, with the upper body straight, twist the two ends of the chair tightly with both hands, put your feet together, then lift it, hold it for 10-20 seconds, then put it down and repeat 100 times. There are still a lot of abdominal exercise equipment on the market. The fitness instructor suggested buying a sit-up machine that can be placed on the floor, which can effectively strengthen the abdomen. The model with counter and timer is better. Sit-ups allow men who are doing sports to easily do sit-ups in supine position, and twist their lateral bodies and exercise their lateral abdominal muscles with the help of instruments, which are easily overlooked by ordinary people in training. Sit-ups often move up and down because of exercise. Pay attention to whether the screws rotating the equipment are firm and stable, so as to avoid personal injury when the machine tilts. There are also bow-shaped abdominal exercisers on the market that press the abdomen with both hands. Because the user often needs a certain wrist strength to pull the instrument to strengthen the abdomen, otherwise the effect will be discounted, so it is suitable for people with certain strength. In fact, both men and women want to be more and more beautiful and show their best. Handsome guys should be "measured" rather than "generous", "sexy" rather than "sensual" and spend the summer easily.

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