Different from other parts, abdominal muscle training is most suitable for unarmed training, but many abdominal muscle training instruments are flashy. In my opinion, a yoga mat is enough to exercise abdominal muscles. Because abdominal muscle training has too many moves, I will only briefly introduce two of my favorite training moves. You can do other actions as you like, as long as you feel effective. Sit-ups: This action is the traditional sit-ups in the first half. You can feel the force point of the upper abdominal muscles, not the whole waist and abdomen, indicating that there is basically no problem with this action. Also be careful not to buckle your chin and hands. Supine at both ends: that is, lie on your back, lift your upper body and legs at the same time, and then put them down after touching your hands and legs. Also called double tummy tuck, it can exercise the whole rectus abdominis. The straight leg "starting from both ends" will recruit iliopsoas muscle to a great extent. The experience I want to share with you is that the knees and hips are slightly bent, and the body is controlled to make the whole rectus abdominis exert force.