Journal
JOURNAL OF APPLIED PHYSIOLOGY
Volume 89, Issue 1, Pages 345-352Publisher
AMER PHYSIOLOGICAL SOC
DOI: 10.1152/jappl.2000.89.1.345
Keywords
body composition; dual-energy X-ray absorptiometry; fan beam; computed tomography
Categories
Funding
- NIA NIH HHS [N01-AG-6-2103, N01-AG-6-2106, N01-AG-6-2101] Funding Source: Medline
Ask authors/readers for more resources
The accuracy of total body fat mass and leg fat mass measurements by fan-beam dual-energy X-ray absorptiometry (DEXA) was assessed in 60 healthy elderly subjects (aged 70-79 yr). Total fat and leg fat mass at four leg regions (total leg, thigh, midthigh, and calf) were measured with the QDR 4500A (Hologic, Waltham, MA). The four-compartment model and multislice computed tomography scans were selected as criterion methods for total fat and leg fat mass, respectively. Total fat mass from DEXA was positively associated with fat mass from the four-compartment model with a standard error of the estimate ranging from 1.4 to 1.6 kg. DEXA fan-beam tended to overestimate fat mass for total leg and total thigh fat mass, whereas only marginal differences in fat mass measurements at the midthigh and calf were demonstrated (less than or equal to 0.08 kg, P < 0.0005). Although there were significant differences between DEXA fan beam and the criterion methods, these differences were of small magnitude, suggesting that DEXA is an accurate method for measurement of fat mass for the elderly.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available