This is great... can't believe non of my teacher-trainers have ever laid out the meaning behind this exercise and where to emphasize the movement - "pull down springs from the ceiling" - now it clicked! Thanks Benjamin :)
Thank you both so much! Marie — to be fair, the exercise is often taught quite differently nowadays (rocking the plank back and forth over the anchored foot as opposed to kicking up) and then takes on a different meaning. In Return To Life, this movement follows and intensifies pattern set up by Swimming, focusing it into the lower body while bearing bodyweight into the upper body. So happy you enjoyed this tutorial and it clicked!