On the T-score scale, 0 represents normal, healthy bone density of a 30-year-old person (the age of peak bone density). T-scores above 0 and slightly below 0 are within the normal range. Your score ...

Bone Mineral Density ... This Z-score calculator uses an array of means and standard deviations indexed by age, and all input ages are rounded off to the nearest whole number. Therefore, even though ...

Physicians typically measure two areas—the spine and hip—and then compare your actual bone density to the density your bones should be to resist breaking (which is the bone density of a 30-year-old).