Reclined Butterfly
How to do it
Lie on your back with the knees bent, then bring the soles of the feet together and let the knees fall out to the sides. Put a cushion or a folded towel under each knee. Rest the arms away from the body with the palms facing up. If you want the chest more open, run a rolled towel lengthwise under the spine so the ribs lift. Stay for several minutes and let the shape open on its own.
Why it's good for runners
Running is a narrow corridor: forward and back, over and over, with the hips closing and the shoulders rounding a little more with every mile of fatigue. This shape is the opposite of all of it at once — both hips opening outward, the inner thighs lengthening, the chest and the front of the shoulders spreading, and none of it worked at.
It is also one of the best positions in the method for breathing. The ribs are unweighted and the chest is open, so the breath has room to move without being steered, which is why it sits where it does in the session that is about the nervous system rather than the tissue.
Common mistakes
Don't do this unsupported and call it stronger. Knees hanging in space with nothing under them makes the groin tighten to protect itself, and a guarded muscle does not lengthen — the cushions are what make the pose work. Don't press the knees toward the floor with the hands. Don't set the feet so close that it becomes intense; this is a shape you should be able to forget you are in. And if the low back complains, slide the feet further away and add a little more under the knees.