Fix the EISENHORN in parking position on a height where you can still put your feet underneath the inserted bar.
Lie on the floor with your legs bent and about foot-width apart. Hook the front of the feet under the bar with the soles of the feet flat on the floor. Gently touch the right and left side of your head with the fingertips. Your elbows point out to the sides, left and right. Keep your head in a natural position, looking diagonally upwards.
Lift the chest off the floor and towards the knee joint. The upper body is compressed slightly (hence, “crunch”). Exhale during the movement. Then inhale and lower your torso back down again. Do not lower all the way, but keep your head, arms and shoulders in the air.
Perform the exercise without momentum. Start out with a low number of repetitions and focus on good technique.
Stretched arms at the side of your body.