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Osteopenia, known as "low bone mass" or "low bone density", is a condition in which bone mineral density is low. [1] Because their bones are weaker, people with osteopenia may have a higher risk of fractures, and some people may go on to develop osteoporosis. [2] In 2010, 43 million older adults in the US had osteopenia. [3]
Not only is bone density decreased, but the microarchitecture of bone is also disrupted. The weaker spicules of trabecular bone break ("microcracks"), and are replaced by weaker bone. Common osteoporotic fracture sites, the wrist, the hip, and the spine, have a relatively high trabecular bone to cortical bone ratio.
However, an imbalance between the resorption and formation of bone occurs as people age, contributing to the development of senile osteoporosis. The aging of cortical and trabecular bones in particular cause the decrease in bone density in the elderly population. [1]
Bone density testing is recommended for older women whose risk of breaking a bone is the same or greater than that of a 65‑year‑old white woman with no risk factors other than age.
A bone density test is like an X-ray of your body, and it takes about 15 minutes, according to the U.S. Department of Health and Human Services. The test can tell your health care provider how ...
About 12% of US adults older than 50 have osteoporosis, and 43% have low bone mass, a precursor to osteoporosis, according to the National Center for Health Statistics. But exercising greatly ...