Wheel Pose
Wheel Pose (Urdhva Dhanurasana) is the big, full backbend — pressing up from your back into an arch supported by hands and feet. The principle that keeps it safe and makes it feel good: distribute the curve EVENLY along your whole spine, so your lower, middle, and upper back all share the bend.
FilmableFilm this on your phone and TrueForm measures your body mechanics and tells you what to fix. You get angles, not a made-up score.