I am 76 yrs (female) and have been exercising regularly (classes, etc) since I was 27 (tennis, high impact aerobics, low impact aerobics, swimming, yoga). Now, I love walking (approximately 4,000 - 6,000 steps every other day). I also am careful with my food intake. Now, I primary doctor says (dexa) I have osteoporosis in both neck femurs and lumbar spine areas. He says don't bend more than 30degrees, don't pick up anything that weighs over 17 lbs. and don't twist. My dexa showed spine at -3.3. I am afraid I will break if I move. Any help much appreciated.