1. Sit-ups, this is simple, but pay attention to the details. Take off and fall slowly, and the spine must be in a straight line. While ensuring the correct movements, do 10 groups every day in the early stage, 25 times in each group, and increase it as appropriate after one month.
2. The second action, slightly more difficult, can lengthen the abdominal muscles and look better. Find a horizontal bar, hold your hands tightly, slowly raise your knees, keep your thighs parallel to the ground, and count for 3 seconds in your mind, but don't fall to the ground and stick to the limit. The main point of this action is not to use force on the arm when lifting the knee.
Ask to do it twice a day. Once in the morning and once in the evening.
Look at your fat thickness. Stick to it for 3 months and it will be effective. Finally, I wish you success.