title: Effect of a non-dieting lifestyle randomised control trial on psychological well-being and weight management in morbidly obese pre-menopausal women.
abstract: 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.
  
  
  METHODS
  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.
  
  
  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.
authors.affiliation: Department of Sport and Physical Activity, Bournemouth University, Poole, United Kingdom; Institute of Sport, Exercise and Active Living, Victoria University, Melbourne, Australia. Electronic address: Eborkoles@bournemouth.ac.uk.
authors.forename: Erika
authors.initials: E
authors.lastname: Borkoles
authors.affiliation: Department of Sport, Health & Exercise Science, University of Hull, Hull, United Kingdom.
authors.forename: Sean
authors.initials: S
authors.lastname: Carroll
authors.affiliation: Department of Psychology, Manchester Metropolitan University, Manchester, United Kingdom.
authors.forename: Peter
authors.initials: P
authors.lastname: Clough
authors.affiliation: Psychology Department, University of Bournemouth, Poole, Dorset BH12 5BB, United Kingdom; Institute of Sport, Exercise and Active Living, Victoria University, Melbourne, Australia. Electronic address: rpolman@bournemouth.ac.uk.
authors.forename: Remco C J
authors.initials: RC
authors.lastname: Polman
mesh_terms: D000328:Adult; D001835:Body Weight; D005260:Female; D006801:Humans; D008019:Life Style; D008603:Mental Health; D008875:Middle Aged; D009767:Obesity, Morbid / Q000523:psychology* / Q000628:therapy*; D017697:Premenopause; D011582:Psychological Theory
keywords: Morbidly obese women obesity; RCT; Self-determination theory