That video is part of a different series, however, since it is focussed on posture and that is the theme of this post, we felt it would a good addition.

Hi Catherine. You should consult with a Physiotherapist, specifically one who treats vertigo issues. Thanks.

Progress gradually. The challenge is locking and unlocking the table without going into flexion.

Hi Charlie, Sorry for the delay in responding. Hanging from a secure bar at the top of a door frame is not harmful except possibly to your shoulders. If this is part of a routine that you like to do the “traction” of your spine which is created when you hang is actually a healthy way to unweight your spine. However, in doing so you should keep your shoulders “actively engaged in the process”. Actively engaging your shoulders would be equivalent to the feeling you have when you just start a pull-up. There is little to no perceived motion except within the shoulder joint itself. I hope this is helpful to you.
Keep strong and stay safe.
Margaret

Hi Taraneh. It is in your best interest to consult with a Physician or Physical Therapist who can address your questions. You situation is too specific for us to address in a comments section. Thank you and stay safe.