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Effects of weight cycling on the resting energy expenditure and body composition of obese women.
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Int J Eat Disord 1996 Jan;19(1):5-12 Effects of weight cycling on the resting energy expenditure and body composition of obese women. Wadden TA, Foster GD, Stunkard AJ, Conill AM. University of Pennsylvania School of Medicine, Department of Psychiatry, Philadelphia 19104, USA. OBJECTIVE: Numerous reports have suggested that cycles of weight loss and regain (i.e., weight cycling) are associated with adverse health consequences, a concern that may lead some obese individuals to forgo weight control efforts. The present study examined whether weight cycling was associated with a reduction in resting energy expenditure (REE) and with increases in both total and upper body fat. METHOD: REE, body composition, and body fat distribution were measured before and after weight loss, and following full weight regain, in 12 women who before treatment had a mean (+/- SEM) age of 38.8 +/- 3.4 years and weight of 98.0 +/- 3.2 kg. RESULTS: At the end of treatment, patients lost 18.9 +/- 2.6 kg which was comprised of significant decreases in body fat and fat-free mass of 15.2 +/- 2.2 and 3.7 +/- 0.8 kg, respectively (both ps .001). REE also fell during this time from 1,631 +/- 82 to 1,501 +/- 51 kcal/d (p 03). All of these measures, however, returned to their baseline values when patients regained their lost weight. Body fat distribution was unchanged throughout the study. DISCUSSION: These results do not support claims that weight cycling adversely affects REE, body composition, or body fat distribution. -----BEGIN PGP SIGNATURE----- Version: N/A iQA/AwUBQK9zbzL3IlvsWvnjEQLzpgCeJcaTZzOZ4kAfpBqc2jluZi 3niDsAn0vE MrWR02HwrD8d2bwDbxRtHTTo =FwVO -----END PGP SIGNATURE----- |
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Effects of weight cycling on the resting energy expenditure and body composition of obese women.
Excellent...
It never did make sense to me that dieting should *permanently* lower BMR. I do believe that temporary caloric restriction lowers BMR (due to leptin depletion plus the issue of their simply being less food to burn than the body can make available from body fat which would cause body to lower BMR) but the assumption is that losing weight debilitates the metabolism permanently. Nice to see someone put ******** rumors to rest. "NR" wrote in message ... -----BEGIN PGP SIGNED MESSAGE----- Int J Eat Disord 1996 Jan;19(1):5-12 Effects of weight cycling on the resting energy expenditure and body composition of obese women. Wadden TA, Foster GD, Stunkard AJ, Conill AM. University of Pennsylvania School of Medicine, Department of Psychiatry, Philadelphia 19104, USA. OBJECTIVE: Numerous reports have suggested that cycles of weight loss and regain (i.e., weight cycling) are associated with adverse health consequences, a concern that may lead some obese individuals to forgo weight control efforts. The present study examined whether weight cycling was associated with a reduction in resting energy expenditure (REE) and with increases in both total and upper body fat. METHOD: REE, body composition, and body fat distribution were measured before and after weight loss, and following full weight regain, in 12 women who before treatment had a mean (+/- SEM) age of 38.8 +/- 3.4 years and weight of 98.0 +/- 3.2 kg. RESULTS: At the end of treatment, patients lost 18.9 +/- 2.6 kg which was comprised of significant decreases in body fat and fat-free mass of 15.2 +/- 2.2 and 3.7 +/- 0.8 kg, respectively (both ps .001). REE also fell during this time from 1,631 +/- 82 to 1,501 +/- 51 kcal/d (p 03). All of these measures, however, returned to their baseline values when patients regained their lost weight. Body fat distribution was unchanged throughout the study. DISCUSSION: These results do not support claims that weight cycling adversely affects REE, body composition, or body fat distribution. -----BEGIN PGP SIGNATURE----- Version: N/A iQA/AwUBQK9zbzL3IlvsWvnjEQLzpgCeJcaTZzOZ4kAfpBqc2jluZi 3niDsAn0vE MrWR02HwrD8d2bwDbxRtHTTo =FwVO -----END PGP SIGNATURE----- |
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