Passive Dead Hang

Hang from a pullup bar, smith machine, or whatever horizontal bar you have access to with a tight grip and the shoulder blades relaxed. You can tuck your knees if you need the room so your feet don’t hit the floor. An active hang would have engaged upper back muscles, but for this you want the body as long as possible. You can keep your head behind your arms like in the video, but feel free to move your head forward as well if you’d like.