1, frequency
Exercise your abdominal muscles every other day. Although many people do hundreds of sit-ups at a time, it is still recommended to choose 2 14 exercises that are most effective for them, and only do three groups, 30 to 50 times in each group, and each group should be completely exhausted.
2. Weight
The greater the weight used by abdominal muscle training, the greater the possibility of irregular movements and the thicker the waist. The idea that gaining weight can burn more fat is wrong. Therefore, it is suggested that tension and control should be used instead of weight bearing, and external weight should be tightened with ideas to stimulate abdominal muscles.
3. The status is correct
When practicing abdominal muscles, keep the whole group of abdominal muscles constantly tense, and don't let the abdominal muscles relax at the beginning or end of the action. Always be completely exhausted, and each group should be completely exhausted. Don't count the times, and keep doing it until your abdominal muscles can no longer contract. You don't have to be completely heterosexual. When practicing abdominal muscles, don't arch your back, but hold your chest slightly. So as to concentrate the tension on the abdomen. The straighter the upper body stretches, the more power is exerted on the buttocks, which not only reduces the pressure on the abdominal muscles, but also increases the risk of lower back strain.