Abstract
Background: Dual energy X-ray absorptiometry (DXA) equipment is designed to provide information for animal and human research and clinical diagnosis. Its physical concepts are based on a molecular 3-compartment model of body composition. Objectives: To understand the physiological relation between DXA and functional body components at tissue system level (e.g. adipose tissue and muscle mass) two cross-validation studies were undertaken. Methods: The first study compared DXA fan beam scans with direct dissection and computed tomography (CT) scanning data at whole body level in a sample of 12 porcine carcasses. The second study related regional DXA variables with absolute tissue masses obtained by CT scanning in 11 humans. Results: Both studies show that DXA and functional body components are significantly interrelated (with r-values between 0.60 and 1.00, P
| Original language | English |
|---|---|
| Number of pages | 9 |
| Journal | European Journal of Clinical Nutrition |
| Volume | 69 |
| DOIs | |
| Publication status | Published - 1 Dec 2015 |
Keywords
- body composition
- nutrition
- exercise
- health
- dual energy X ray absorptiometry
- human
- tissues
- computer assisted tomography
- diagnosis
- validation study
- dissection
- compartment model
- subcutaneous fat
- muscle mass
- weight
- carcass
- adipose tissue