The best option in my opinion and my doctor agreed is strength training. I had osteopenia headed toward osteoporosis. My doctor agreed to the strength training as long as it keeps things stable. I have been training with a physical therapist for over 2 years. Ok so far.
This is real weight…not the little 2,5, 10 pound weights that most women think of. Walking is ok, stair climbing is good, but for really maintaining your bones, it has to be strength training. I would suggest talking with your doctor and a physical therapist.
FYI: strength training is not for sissies😁