[Decline sit-ups] mainly exercises the upper abdomen

[Decline sit-ups] mainly exercises the upper abdomen.

Sit on an inclined board with an incline of 45 degrees or greater, make sure your feet are under the roller pad, gently place your hands behind your head, and slowly lie back without letting your shoulders touch your lower body. There is no slight contact with the inclined board. Then, the abdominal muscles contract and exert force to lift the upper body as much as possible. When reaching the highest point, the abdominal muscles contract with force and control. Stop for a moment, and then use the tension of the abdominal muscles to control and restore.

One set of 10 times, a total of 4 sets, resting for 60 seconds between each set.