Progression I:
Adjust the sling trainer to mid-lower leg length (standing), lie on your back with your face up, fix your heels in the slings vertically below the attachment point, pull your heels towards your buttocks and return to the starting position. Press the heels down during the entire movement.
Progression II:
Analogue to progression I, but the pelvis is lifted off the floor (body tension, only the shoulders rest on the floor), alternately pull one leg up.
Progression III:
Analogue to progression II, but both legs are pulled up at the same time. When pulling the heels up, lift the pelvis and form a right angle with the knees.
Progression IV:
Analogue to progression III, still supine, but in the starting position the heels are not vertically under the attachment point but are closer to the body (sling trainer hangs at an angle and points towards the body), in addition the arms are stretched out in front (pointing upwards). The further away the head is from the attachment point, the more challenging the exercise becomes.
