1 Can sit-ups lose weight? Many people bend their knees when doing sit-ups, raise their whole upper body and put their hands across their necks. This is only the force of thigh muscles, not the force of abdominal muscles. This will not only reduce the fat in the abdomen, but also lead to muscle strain in the waist and compress the cervical nerve. Therefore, it is very important to master the correct methods of sit-ups. Do sit-ups with breathing, exhale forcefully at the beginning, inhale when retreating, keep normal chest breathing, and don't hold your breath, so that the abdominal muscles will tighten and achieve the effect of losing weight. First of all, the athlete lies on his back on the bed, his legs are bent normally, his hands are half clenched by his ears and his arms are spread out. When he gets up, let his waist exert strength, but be careful not to leave the ground, and then slowly descend. During the practice, his legs must not be straight, otherwise the practice will be invalid. In addition, you can consciously carry out abdominal breathing at ordinary times. When inhaling, feel the abdominal cavity lift inward and upward, fully inhale and exhale deeply, which is helpful to tighten the transverse abdominal muscles. Therefore, whether sitting or standing, abdominal breathing can become a habit.

2 How many times weight loss sit-ups are effective has little to do with quantity. Sit-ups, as a kind of physical exercise, have no obvious slimming effect and are not effective. The main reason is that sit-ups do not have the characteristics of aerobic exercise. In addition, if the excessive pursuit of sit-ups in weight loss, and then increase the frequency of exercise, it is easy to lead to waist and abdomen pain, or lumbar injury and other related diseases.

As a physical exercise method, weight loss supine is influenced by many factors, so you are required to pay attention to breathing, don't hold your head with your hands, get up at a height of 45 degrees, have a moderate speed, choose the number of times according to the exercise effect, and pay attention to aerobic exercise in order to achieve good results in a short time.

3 Correct sit-ups 1, lie on your back on the bed, keep your feet straight, hold your ears with your hands half clenched, and open your arms as far as possible.

2, borrow the strength of the abdomen, slowly straighten the upper body, pay attention to the waist not to leave the ground.

3. Slowly descend to restore the body to its original position and repeat the above actions.