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Effects of weight cycling caused by intermittent dieting on metabolic rate and body composition in obese women.
Int J Obes. 1991 May; 15(5):367-74.IJ

Abstract

The effects of repeated periods of weight loss and regain on metabolic rate and body composition were investigated in 11 obese women (mean weight 81.98 kg, height 1.61 m, body mass index 31.44 kg/m2) studied for 18 weeks through three consecutive cycles of 2 weeks dieting followed by 4 weeks ad libitum eating. Weight loss was achieved by a very low energy diet (1861 kJ/day). Basal metabolic rate (BMR) was measured by whole-body indirect calorimetry and body composition by a variety of standard in vivo methods. During the three diet periods mean weight losses were 4.44, 3.29 and 2.98 kg although the mean overall weight loss from week 0 to 18 was only 5.93 kg. The proportion of weight lost as fat was estimated as between 67 and 105 per cent of the weight lost depending on the body composition methodology employed. Absolute BMR decreased in response to dieting by 545, 285 and 286 kJ/day. When corrected for body weight and FFM only the decreases in the first diet period were significant (P less than 0.05 and P less than 0.001 respectively). BMR had returned to normal following each 4-week ad libitum period and by the end of the study absolute BMR and BMR/kg FFM had not changed significantly, despite a significant loss of weight. Consequently BMR/kg was increased (P less than 0.01), indicative of the loss of adipose tissue. We have found no evidence in this group of obese women that weight cycling leads to a progressive decrease in BMR or increase in the proportion of body fat.

Authors+Show Affiliations

MRC Dunn Clinical Nutrition Centre, Cambridge, UK.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

1885261

Citation

Jebb, S A., et al. "Effects of Weight Cycling Caused By Intermittent Dieting On Metabolic Rate and Body Composition in Obese Women." International Journal of Obesity, vol. 15, no. 5, 1991, pp. 367-74.
Jebb SA, Goldberg GR, Coward WA, et al. Effects of weight cycling caused by intermittent dieting on metabolic rate and body composition in obese women. Int J Obes. 1991;15(5):367-74.
Jebb, S. A., Goldberg, G. R., Coward, W. A., Murgatroyd, P. R., & Prentice, A. M. (1991). Effects of weight cycling caused by intermittent dieting on metabolic rate and body composition in obese women. International Journal of Obesity, 15(5), 367-74.
Jebb SA, et al. Effects of Weight Cycling Caused By Intermittent Dieting On Metabolic Rate and Body Composition in Obese Women. Int J Obes. 1991;15(5):367-74. PubMed PMID: 1885261.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of weight cycling caused by intermittent dieting on metabolic rate and body composition in obese women. AU - Jebb,S A, AU - Goldberg,G R, AU - Coward,W A, AU - Murgatroyd,P R, AU - Prentice,A M, PY - 1991/5/1/pubmed PY - 1991/5/1/medline PY - 1991/5/1/entrez SP - 367 EP - 74 JF - International journal of obesity JO - Int J Obes VL - 15 IS - 5 N2 - The effects of repeated periods of weight loss and regain on metabolic rate and body composition were investigated in 11 obese women (mean weight 81.98 kg, height 1.61 m, body mass index 31.44 kg/m2) studied for 18 weeks through three consecutive cycles of 2 weeks dieting followed by 4 weeks ad libitum eating. Weight loss was achieved by a very low energy diet (1861 kJ/day). Basal metabolic rate (BMR) was measured by whole-body indirect calorimetry and body composition by a variety of standard in vivo methods. During the three diet periods mean weight losses were 4.44, 3.29 and 2.98 kg although the mean overall weight loss from week 0 to 18 was only 5.93 kg. The proportion of weight lost as fat was estimated as between 67 and 105 per cent of the weight lost depending on the body composition methodology employed. Absolute BMR decreased in response to dieting by 545, 285 and 286 kJ/day. When corrected for body weight and FFM only the decreases in the first diet period were significant (P less than 0.05 and P less than 0.001 respectively). BMR had returned to normal following each 4-week ad libitum period and by the end of the study absolute BMR and BMR/kg FFM had not changed significantly, despite a significant loss of weight. Consequently BMR/kg was increased (P less than 0.01), indicative of the loss of adipose tissue. We have found no evidence in this group of obese women that weight cycling leads to a progressive decrease in BMR or increase in the proportion of body fat. UR - https://www.unboundmedicine.com/medline/citation/1885261/Effects_of_weight_cycling_caused_by_intermittent_dieting_on_metabolic_rate_and_body_composition_in_obese_women_ DB - PRIME DP - Unbound Medicine ER -