Journal
MATURITAS
Volume 83, Issue -, Pages 51-58Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.maturitas.2015.09.010
Keywords
Morbidly obese women obesity; Self-determination theory; RCT
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Objective: This study examined the effects of a non-dieting lifestyle intervention approach for morbidly obese women designed in the framework of the self-determination theory (SDT) and Health at Every Size on weight maintenance and psychological functioning. Participants and design: Predominantly white (97%), morbidly obese (BMI >= 35 kg m(-2) with at least one co-morbid condition or a BMI >= 40 kg m(-2)) pre-menopausal women (N=62), aged between 24 and 55 years were initially randomly assigned to 12 weeks of lifestyle intervention (IIG) or delayed start control group (DSCG). The program consisted of 3 months intensive lifestyle intervention followed by 9 month maintenance phase. The DSCG group commenced the program after 3 months. Results and conclusions: Initially, the IIG showed a significant decrease in body weight (baseline to end of the RCT phase) compared with a significant increase in the DSCG group. However, no significant changes in weight status were evident in either group at 12 months compared with baseline. The 3-month intensive intervention resulted in significantly improved psychological functioning in both groups, which were maintained at 12 months. The study provides additional support for a non-dieting, theory-based, lifestyle approach to weight management and psychological well-being among morbidly obese females. (C) 2015 The Authors. Published by Elsevier Ireland Ltd.
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