Some of the reading I am doing indicates that some of the same things that cause osteoporosis can also cause inflammation, which in turn increases bone loss. Some of the symptoms that people with PMR have can be caused by nutritional deficiencies and often these are also implicated in bone loss. Some kinds of calcium are better than others for people taking glucocorticoids (prednisone).
Every one of the medicines prescribed for osteoporosis is in the long run (and sometimes sooner) poisonous to healthy regeneration of bone. Taking the right kind of calcium and a balance of a number of other nutrients is more effective in increasing bone mass, and in this instance the bone will be normal. We need more than calcium and vitamin D3, however. I used to try to be tactful towards people who are taking the OP medications as after all this is their choice. Today I say, please get off them as soon as you can and try the "natural" treatment. It takes more time and effort but your entire body will benefit, perhaps even the PMR may fade more quickly? Let's hope so!
I've just received my "weighted walking vest" all the way from Texas complete with 10 lb worth of steel ingots, and an extra 5 lb for years to come. I'm starting with 5 lb and it is way more comfortable than a 5 lb ankle weight in a backpack! The ingots weigh just ounces so the skeleton can be challenged every few days with an additional load.
Other strategies - a better bone-friendly supplement, Tai Chi and walking, even more attention to diet. A lot of work, but I am convinced it is the right way to tackle this problem and I will never take a big pharma OP drug.
PMR , Osteoporosis , 
Ignoring advice of doctor regarding osteoporosis meds
PMR and Osteoporosis
Osteoporosis/alendronic acid 
