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Bone mineral content measured with photon absorptiometry - a methodological study carried out on normal individuals
Scandinavian Journal of Urology and Nephrology. Supplementum
|January 1, 1981
Summary
Bone mineral content (BMC) measurement requires adjustments for body weight and fat parameters for accurate results. Correcting for these factors ensures reliable bone density assessments in adults and children.
Area of Science:
- Bone Densitometry
- Medical Physics
- Human Physiology
Background:
- Accurate measurement of bone mineral content (BMC) is crucial for assessing bone health.
- Photon absorptiometry is a common technique for BMC assessment.
- Reference data is needed for accurate interpretation of BMC measurements.
Purpose of the Study:
- To establish a reference group for bone mineral content (BMC) measurements.
- To investigate correlations between BMC and various body and fat parameters.
- To determine the need for corrections in BMC measurements.
Main Methods:
- Photon absorptiometry using 241Am radiation source.
- Measurements performed on the midshafts of forearms in 136 adults and 14 children.
- Comparison of baseline levels using water-filled cuff versus soft tissue absorption.
Main Results:
- Positive correlations found between BMC and body parameters (weight, height, etc.).
- Negative correlations found between BMC and fat parameters (BMI, skinfold thickness, etc.).
- BMC measurements in the dominant arm were initially higher but normalized after fat correction.
Conclusions:
- Measured BMC requires correction for both body and fat parameters for accuracy.
- Dietary intake of milk products may positively influence BMC.
- Physical activity, pregnancies, lactation, and smoking showed no significant correlation with BMC.