CORE TRAINING - I posted a week or so ago some partner training from a quadruped set up but with these we are extending the body into a high plank involving responsive anti-rotation. . First set up is cool because you focus on the torso and core from a 360 degree set up but with the partner leg drop there is a responsive element of having to adapt to the stimulus that they give you. . Second is a lot more dynamic but I love this for the same reason of challenging the core but also for the should