The New York Times had an article recently on bone density.

http://well.blogs.nytimes.com/2014/03/07/why-high-impact-exercise-is-good-for-your-bones/?ref=magazine about exercise and bone density.

Some advice from the article worth noting was,  “So, Dr. Tobias says, young people and healthy adults should probably pound the ground, at least sometimes. Sprint. Jump off a box 15 inches or higher at your gym and jump back up. Hop in place.A study by other researchers published in January found that women between 25 and 50 who hopped at least 10 times twice a day, with 30 seconds between each hop, significantly increased their hipbone density after four months. Another group of subjects, who hopped 20 times daily, showed even greater gains.

 A link in the above NYTimes  article was to: http://www.ncbi.nlm.nih.gov/pubmed/24460005

They concluded’ “After 16 weeks of high-impact jump training, hip BMD can be improved in premenopausal women by jumping 10 or 20 times, twice daily, with 30 seconds of rest between each jump, compared with controls.”

  A couple of books I recommend on the subject are:

Building Bone Vitality: A Revolutionary Diet Plan to Prevent Bone Loss and Reverse Osteoporosis–Without Dairy Foods, Calcium, Estrogen, or Drugs by Amy Lanou and Michael Castleman  

http://www.amazon.com/Building-Bone-Vitality-Revolutionary-Osteoporosis-Without/dp/0071600191/ref=pd_sim_b_1?ie=UTF8&refRID=1FYX3FTDTVJ9DRE6QGW7

 

Better Bones, Better Body : Beyond Estrogen and Calcium by Susan Brown

http://www.amazon.com/Better-Bones-Body-Estrogen-Calcium/dp/0658002899/ref=pd_sim_b_3?ie=UTF8&refRID=1FYX3FTDTVJ9DRE6QGW7