The fingertips point backwards. Then turn the upper body slowly towards the left. Then repeat the exercise with the other arm. Benefits: chest muscles Exercise DescriptionGB GB fig. 1a fig. 1b Exercise 1a – d Raise the upper body Starting position: Adjust the length of your upper leg so that your upper legs lie just below the pelvic bone and the upper part of your body can still be freely moved. Place your feet on the bottom tubes. Grip the handles and secure your legs by means of the leg pads.