Osteomalacia/Rickets and Resistance Training

I’ve got a friend (Asian female, late 20s) who is curious about Resistance Training, had Rickets as a child and underwent corrective surgery in her teen years as her legs had bowed. I’ve searched the interwebs here for a while for any information about adults with Osteomalacia and if it’s safe for them to undertake Resistance Training with not a single study found!

Im curious if anyone knows anything about this or has had experience training a client or friend with this condition?

Has the osteomalacia been treated? (in other words, are they still vitamin D deficient?)