I don’t care about that stuff. I can do ‘fitness’ at home.
But I’ve thought of joining the local gym, because they have ‘Hydro Massage’ tables and chairs. If you have back issues, try it. It’s amazing.
The first time I experienced this in a chiropractor’s office, I laughed my head off. It’s better than a roller coaster:
https://www.youtube.com/watch?v=xg9C0eIiao0
Planet Fitness is a no intimidation zone by policy. It’s great and it does have hydro massage.