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Am J Physiol Endocrinol Metab (December 4, 2001). doi:10.1152/ajpendo.00265.2001
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Articles in PresS, published online ahead of print December 4, 2001
Am J Physiol Endocrinol Metab, 10.1152/ajpendo.00265.2001
Submitted on June 20, 2001
Accepted on November 29, 2001

Pattern and Cost of Weight Gain in Previously Obese Women -R3

Susanne B Votruba1, Stephane Blanc1, and Dale A Schoeller1*

1 Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, USA

* To whom correspondence should be addressed. E-mail: dschoell{at}nutrisci.wisc.edu.

Weight gain is common among post-obese individuals, providing an opportunity to address the cost of weight regain on energy expenditure. We investigated the energy cost of weight regain over 1 year in 28 women (means±SE, age = 39.5±1.3 years; BMI = 24.2±0.5 kg/m2) with recent weight loss (>12 kg). Body composition, total energy expenditure (TEE) using doubly-labeled water, resting metabolic rate (RMR), and thermic effect of a meal (TEM) were assessed at 0 and 12 months. Metabolizeable energy intake (MEI) was calculated from TEE and change in body composition. Fourteen women had a weight gain of 13.2±2.1 kg. Twelve month cumulative excess MEI, calculated as the intake in excess of TEE at month 0, was 749±149 MJ. Of this, 462±83 MJ (62%) was stored as accrued tissue, and 287±72 (38%) was increased TEE. Expressed per kg of body weight gain, the energy cost of weight gain was calculated to be 54.8±4.6 MJ/kg. Interestingly, weight regain time courses fell into three distinct patterns possibly requiring varying countermeasures.




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