| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH |
|
|
|
|||||||
|
|||||||||
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1 Energy Metabolism Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA
2 Body Composition Unit, St. Luke's-Roosevelt Hospital Center, New York, NY, USA
3 Obesity Consult Center, Department of Psychiatry, New England Medical Center Hospital, Boston, MA, USA
4 Energy Metabolism Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA; Obesity Consult Center, Department of Psychiatry, New England Medical Center Hospital, Boston, MA, USA
* To whom correspondence should be addressed. E-mail: megan.mccrory{at}tufts.edu.
Body composition methods were examined in 20 women (BMI 48.7±8.8 kg/m2) before and after weight loss (-44.8±14.6kg; Mean±SD) following gastric bypass (GBP) surgery. The reference method, a 3-compartment (3C) model using body density by air displacement plethysmography and total body water (TBW) by H218O dilution (3C-H218O), showed a decrease in percent body fat (%BF) from 51.4 % to 34.6%. Fat-free mass hydration was significantly higher in extreme obesity (0.756; P<0.001) but not after weight reduction (0.747; P=0.16) than the reference value (0.738). %BF by H218O dilution and air displacement plethysmography differed significantly from %BF by 3C-H218O in extreme obesity (P<0.05), and 3C models using 2H2O or BIA to determine TBW improved mean %BF estimates over most other methods at both time points. Bioelectrical impedance analysis (BIA) results varied with the equation used, but BIA better predicted %BF than did BMI at both time points. All methods except BIA using the Segal equation were comparable to the reference method for determining changes over time. A simple 3C model utilizing air displacement plethysmography and BIA is useful for clinical evaluation in this population.
This article has been cited by other articles:
|
|
 |
|
  C. Earthman, D. Traughber, J. Dobratz, and W. Howell Bioimpedance Spectroscopy for Clinical Assessment of Fluid Distribution and Body Cell Mass Nutr Clin Pract, August 1, 2007; 22(4): 389 - 405. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 K. J Ellis, M. Yao, R. J Shypailo, A. Urlando, W. W Wong, and W. C Heird Body-composition assessment in infancy: air-displacement plethysmography compared with a reference 4-compartment model Am. J. Clinical Nutrition, January 1, 2007; 85(1): 90 - 95. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. A. Maggard, L. R. Shugarman, M. Suttorp, M. Maglione, H. J. Sugerman, E. H. Livingston, N. T. Nguyen, Z. Li, W. A. Mojica, L. Hilton, et al. Meta-Analysis: Surgical Treatment of Obesity Ann Intern Med, April 5, 2005; 142(7): 547 - 559. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
G. Sun, C. R French, G. R Martin, B. Younghusband, R. C Green, Y.-g. Xie, M. Mathews, J. R Barron, D. G Fitzpatrick, W. Gulliver, et al. Comparison of multifrequency bioelectrical impedance analysis with dual-energy X-ray absorptiometry for assessment of percentage body fat in a large, healthy population Am. J. Clinical Nutrition, January 1, 2005; 81(1): 74 - 78. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. P. Thyfault, R. M. Kraus, R. C. Hickner, A. W. Howell, R. R. Wolfe, and G. L. Dohm Impaired plasma fatty acid oxidation in extremely obese women Am J Physiol Endocrinol Metab, December 1, 2004; 287(6): E1076 - E1081. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. M. Silva, W. Shen, Z. Wang, J. F. Aloia, M. E. Nelson, S. B. Heymsfield, L. B. Sardinha, and S. Heshka Three-compartment model: critical evaluation based on neutron activation analysis Am J Physiol Endocrinol Metab, November 1, 2004; 287(5): E962 - E969. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH |
| Visit Other APS Journals Online |
