How to do traditional belly roll is best with pictures.

Target exercise site: upper part of rectus abdominis (upper abdomen)

Action essentials:

1. Lie on your back on the floor mat, with your knees flexed at about 9 degrees, relax your back muscles and spine, keep your legs together and straight, and put your feet flat on the ground.

2. Lift your body, keep your lower back on the ground, stretch your hands to reach your calves, then return to the original position and repeat.

Precautions:

1. Pay attention to the difference between roll-ups and sit-ups: when lifting the body, the hips of sit-ups should not leave the ground, while roll-ups require the lower back not to leave the ground, so the range of roll-ups is smaller than sit-ups, which is safe and reliable, and the stimulation to the abdomen is more sustained, because the abdomen is basically not stressed when lifting the body more than 3 degrees.