Progression I:
Set the sling trainer to a medium length, stand in an upright position facing the sling trainer, stretch your arms out to the side (shoulder height), lean back and slowly move your outstretched arms forwards, return to the starting position by pulling your upper body forwards (move your arms to the side), shifting your weight from the back leg to the front leg. After half the repetitions/time, change the standing leg (possibly organisation = 2 exercises, train both sides).
Progression II:
Analogue progression I, but only with slightly offset feet.
Progression III:
Analogue progression I, but with parallel feet (slightly wider than shoulder width).
Progression IV:
Analogue progression III, but with closed feet.
Attention:
Keep body tension, do not let hips sag (for all progressions).
Harden:
The more horizontal the starting position, the more challenging the exercise.
Variant:
Alternate arms in a T and Y position (horizontally and sideways upwards).
