I'm a 3 time cancer survivor with the most recent case being the worst - Stage 4 Esophageal Cancer. 11 hr. surgery, 2 mo. long deep coma following surgery, my death certificate was prepared. Was in multiple re-habs after hospital release and none provided much in the way of exercise if any. Was on a feeding tube. Osteoporosis set in in both legs due to infrequent movement provided while in all rehabs. Never had a problem before with my legs. Have always had strong bone tests. I am not going to even try the Prolia, Reclast or any other osteo. drugs as the reported side effects are awful & will bring back serious side effects that came with that last cancer surgery which I've worked SO very hard to improve as best I can. Can't go back to those days!! Will see a physical therapist soon. Right lung was damaged in the last surgery so have significant breathing problems with slightest exertion. PT will be a challenge.