Lock the carriage in the lowermost position. Insert handlebar.
Lie with your back flat on the floor and your legs bent roughly foot-width apart and hook the front of the feet under the bar with the soles of the feet flat on the floor. Cross your arms over your chest and rest your hands on your shoulders. Look at the ceiling.
Use your abdominal muscles to lift up your entire torso. The movement is performed from the hip joint. Exhale in the process.
Perform the exercise without momentum. Start out with a low number of repetitions and focus on good technique. Variation: Stretched arms at the side of your body.