The concentration of minerals in bone that determines bone strength and fracture resistance.
The amount of mineral (primarily calcium and phosphorus) per unit volume of bone tissue, measured in grams per square centimeter. It is a key indicator of bone strength and fracture risk.
Bone mineral density (BMD) is measured by imaging techniques such as DEXA scans and expressed as a T-score, which compares an individual's bone density to that of a healthy 30-year-old. Higher BMD generally correlates with stronger bones and lower fracture risk, though BMD is not the only determinant of bone quality. Factors affecting BMD include age, sex, hormonal status, nutrition (especially calcium, phosphorus, and vitamin D), physical activity, and medications. BMD naturally increases until approximately age 30, then gradually declines, with accelerated loss occurring in women after menopause. Regular monitoring of BMD helps identify individuals at risk for osteoporosis and track the effectiveness of interventions.
Serves as a measurable indicator of bone strength and structural integrity, helping assess fracture risk and guide clinical management decisions.
Maintain adequate calcium (1000-1200 mg/day) and vitamin D (600-800 IU/day for adults) intake, perform weight-bearing exercises regularly, and have DEXA scans as recommended based on age and risk factors. Discuss screening frequency with your healthcare provider.
Bone mineral density is the primary clinical measure of bone strength and fracture risk.
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