1, sit-ups. Sit-ups are a very effective way to exercise abdominal muscles. I believe everyone is familiar with this action, but it should be noted that sit-ups are simple, but only after long-term accumulation and persistence can we see obvious results. Doing sit-ups generally requires our sense of coordination and speed. You may not be able to do it quickly at first, so exercise slowly, and it is best to do 50 pieces in the next minute, so that you can exercise the shark line.

2. Cross your ankles left and right. This action requires us to lie flat on the ground first, and then bend our legs at 45 degrees. Then our upper body bends upward. When doing this, we need to make sure that our backs are always off the ground, and then we start crossing our ankles. Touch the left ankle with the left hand first, and then touch the right ankle with the right hand, so that the waist obviously feels the feeling of exertion, indicating that we are already exercising the waist. Because the shark line is on both sides of our abdomen, this action can exercise the shark line well.

3, roll the abdomen. Abdominal tummy reduction is also a very effective way to exercise abdominal muscles. The preparation for this action is similar to crossing your ankles left and right. At first, your legs are arched and you are lying flat on the ground, and then you start to do abdomen movements. This action should also ensure that your back is always off the ground. When doing this action, you should reach out hard, let your hand touch your knee, hold it for 3 seconds, lean back and start again. A group of 30 movements, three groups a day.