Who should have a Bone Mineral Density Test ?
How to measure a low bone mineral density?
The 'ideal' bone density is usually in people in their twenties. Furthermore, the average bone density in young adults lies at the 0-point. Not everybody is the same and has the equal bone structure; therefore the bone density can range between +1 and -1. When your bone density moves in the more negative field on the scale (e.g. after 1 year) you may have lost calcium from you bones. The transition to Osteoporosis is called "osteopenia" and ranges between -1 and -2.5. The bone density is relatively thin and periodical checkups should be performed to avoid an even greater slip to the negative side of the scale. If the bone density shows the factor -2.5 and up to -4 a person has osteoporosis no matter where the bone density was measured. A reliable bone density test should have a couple of hips and lumbar spine readings. It is useless to take readings only from the L1-L4 area since those readings underestimate the quantity of osteoporoses present.
Normal Bone density