When you have a bone density test, your result comes back as a “T-score.” Osteoporosis -3 means you need to take steps to boost your bone strength. http://universityhealthnews.com/daily/bones-joints/osteoporosis-3-what-your-t-score-means-for-your-bone-health/
Exercises for strong bones, by the National Osteoporosis Foundation. Why women should do weight training. No, it won't bulk you up or make you look manly. It sure helps reduce the risk of breaking your bones after 60!