Who does not dream of a flat stomach? But not only because of the optics you should pay attention to strong abdominal muscles. A trained belly also helps prevent back pain.
-> Sit-ups
Lie on the floor and bend your knees, keeping your feet on the floor. Bring your hands to your ear with your fingertips, your gaze goes to the ceiling. Lift the shoulder girdle off the floor, but not towards the knees, towards the ceiling.
-> Plank
Forearm and feet rest on the floor, elbows are under the shoulders, legs are together. The rest of the body is lifted off the floor in a straight line.
-> Flutter Kicks
You sit and support yourself backwards on your forearms. Your legs are extended and lifted slightly off the floor. Then alternately lift the legs even further up.