Bone Trouble

Got my new dexascan results. Insurance only pays for one scan per 2 years, which seems counterproductive given my osteoporosis. I was as confident as could be this time - I've got a 1000 miles of running under my belt, calcium/magnesium supplements above the RDA, and 2000 IU of Vitamin D for the past year or so. All the ingredients for further additions to my bone density.... so what happened?? My lower spine actually LOST density, and my right hip was unchanged. Couldn't test the left (operated) hip what with the metal. I will say that the pelvic X-ray around the same time shows the left side now at least as dense as the right side, so that's a big improvement. But why no improvement in my right side or spine? Did ALL available bone building go into my left leg ONLY? 4 years now, post surgery. On the positive side, I've ramped up my running as we are into triathlon season. Did 8 miles today to go with 13 miles earlier in the week. Felt great, as did all the recent road and mountain biking. Oh, the other bone trouble - a broken toe banging it into my steel incline bench a month ago. Made running the Wildflower more adventurous. I'll save that for the next post...