@cahabagirl How much weight can support bone density? Have you asked your personal trainer that question? My personal trainer also has a master’s degree in exercise physiology and there is another trainer at my gym that has an advanced degree. Both of these trainers are very helpful in letting me know which lifts are most effective.

I’ve been lifting weights for over thirty years. My mother had osteoporosis and so I have the genetic predisposition. I think if you carefully target the axial skeleton (vertebral bones in your spine) that this will help to support your bone density. When I started doing this my bone density did increase over time. At least according to a DEXA bone density scan.

Again, you can ask your personal trainer which lifts are appropriate for you.
https://my.clevelandclinic.org/health/body/22344-axial-skeleton#:~:text=What%20are%20the%20five%20parts,and%20thoracic%20cage%20(ribcage).