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Body Composition Metrics
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Dual-Energy X-ray Absorptiometry (DEXA)
DEXA provides a highly accurate assessment of body composition, including fat mass, lean mass, and bone mineral density. Its significance is in its use as a research standard and in medical settings.
Hydrostatic Weighing
Hydrostatic weighing measures body density by assessing a person's mass in water compared to their mass in air to calculate body fat percentage. Its significance comes from its accuracy and use as a criterion method.
Body Mass Index (BMI)
BMI measures the relationship between weight and height to estimate body fatness. It is significant as it is a simple, quick, and noninvasive way to screen for weight categories that may lead to health problems.
Skinfold Thickness Measurements
This method measures the thickness of skinfolds at various body locations to estimate body fat percentage. It is significant as it provides a cost-effective means of assessing body composition, particularly body fat.
Bioelectrical Impedance Analysis (BIA)
BIA estimates body composition, including body fat and lean body mass, by measuring resistance to a small electrical current as it travels through the body. Significance lies in its convenience and speed for individual and repeated use.
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