TY - JOUR
T1 - Usefulness of anthropometrics and dual-energy x-ray absorptiometry for estimating abdominal obesity measured by magnetic resonance imaging in older men and women
AU - Stewart, Kerry J.
AU - DeRegis, James R.
AU - Turner, Katherine L.
AU - Bacher, Anita C.
AU - Sung, Jidong
AU - Hees, Paul S.
AU - Shapiro, Edward P.
AU - Tayback, Matthew
AU - Ouyang, Pamela
PY - 2003/3
Y1 - 2003/3
N2 - PURPOSE: Increasing evidence suggests that abdominal obesity may be a better predictor of disease risk than total fatness. This study sought to determine how obesity and fat distribution measured by readily available anthropometric and dual-energy x-ray absorptiometry (DXA) methods is related to abdominal obesity assessed by magnetic resonance imaging (MRI). METHODS: Men (n = 43) and women (n = 47), ages 55 to 75 years, were assessed for body mass index, waist-to-hip ratio, waist circumference, and skin folds by anthropometric methods; for percentage of body fat by DXA; and for abdominal total, subcutaneous, and visceral fat by MRI. RESULTS: In stepwise regression models, the waist-to-hip ratio explained 50% of the variance in abdominal visceral fat among men (P < .01), and body mass index explained an additional 6% of the variance (P < .01). Among women, waist circumference was the only independent correlate of abdominal visceral fat, accounting for 52% of the variance (P < .01). Among men, the percentage of body fat was the only independent correlate of abdominal subcutaneous fat, explaining 65% of the variance (P < .01). Among women, the percentage of body fat explained 77% of the variance in abdominal subcutaneous fat and body mass index explained an additional 3% (P < .01). CONCLUSIONS: Obesity and body composition obtained by readily available anthropometric methods and DXA provide informative estimates of abdominal obesity assessed by MRI imaging.
AB - PURPOSE: Increasing evidence suggests that abdominal obesity may be a better predictor of disease risk than total fatness. This study sought to determine how obesity and fat distribution measured by readily available anthropometric and dual-energy x-ray absorptiometry (DXA) methods is related to abdominal obesity assessed by magnetic resonance imaging (MRI). METHODS: Men (n = 43) and women (n = 47), ages 55 to 75 years, were assessed for body mass index, waist-to-hip ratio, waist circumference, and skin folds by anthropometric methods; for percentage of body fat by DXA; and for abdominal total, subcutaneous, and visceral fat by MRI. RESULTS: In stepwise regression models, the waist-to-hip ratio explained 50% of the variance in abdominal visceral fat among men (P < .01), and body mass index explained an additional 6% of the variance (P < .01). Among women, waist circumference was the only independent correlate of abdominal visceral fat, accounting for 52% of the variance (P < .01). Among men, the percentage of body fat was the only independent correlate of abdominal subcutaneous fat, explaining 65% of the variance (P < .01). Among women, the percentage of body fat explained 77% of the variance in abdominal subcutaneous fat and body mass index explained an additional 3% (P < .01). CONCLUSIONS: Obesity and body composition obtained by readily available anthropometric methods and DXA provide informative estimates of abdominal obesity assessed by MRI imaging.
KW - Abdominal fat
KW - Aging
KW - Body composition
KW - Central obesity
KW - Dual-energy x-ray absorptiometry
KW - Magnetic resonance imaging
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U2 - 10.1097/00008483-200303000-00008
DO - 10.1097/00008483-200303000-00008
M3 - Article
C2 - 12668933
AN - SCOPUS:0037345013
SN - 0883-9212
VL - 23
SP - 109
EP - 114
JO - Journal of Cardiopulmonary Rehabilitation
JF - Journal of Cardiopulmonary Rehabilitation
IS - 2
ER -