Binge eating and exercise behavior after surgery for severe obesity: A structural equation model
ABSTRACT The current study sought to find indications for the appropriateness of a model in which eating patterns and exercise beliefs influence binge eating and physical exercise, respectively, that, in turn, influence outcome after gastric banding for severe obesity.
Participants were 157 patients (144 females, 13 males) who completed questionnaires approximately 34 months (range = 8-68 months) after laparoscopic adjustable gastric banding (LAGB).
Our data showed a well-fitting model in which external and emotional eating were associated with outcome through binge eating. Several exercise beliefs were associated with physical exercise, but physical exercise was not associated with weight loss or physical health.
Binge eating was related more strongly to the outcome after gastric banding than physical exercise. Future research should examine whether a strong focus on the management of binge eating and external and emotional eating could improve the outcome of morbidly obese patients with unsuccessful weight outcome after obesity surgery.
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ABSTRACT: Psychological distress and elevated cortisol secretion promote abdominal fat, a feature of the Metabolic Syndrome. Effects of stress reduction interventions on abdominal fat are unknown. Forty-seven overweight/obese women (mean BMI = 31.2) were randomly assigned to a 4-month intervention or waitlist group to explore effects of a mindfulness program for stress eating. We assessed mindfulness, psychological distress, eating behavior, weight, cortisol awakening response (CAR), and abdominal fat (by dual-energy X-ray absorptiometry) pre- and posttreatment. Treatment participants improved in mindfulness, anxiety, and external-based eating compared to control participants. Groups did not differ on average CAR, weight, or abdominal fat over time. However, obese treatment participants showed significant reductions in CAR and maintained body weight, while obese control participants had stable CAR and gained weight. Improvements in mindfulness, chronic stress, and CAR were associated with reductions in abdominal fat. This proof of concept study suggests that mindfulness training shows promise for improving eating patterns and the CAR, which may reduce abdominal fat over time.Journal of obesity 10/2011; 2011(2090-0708):651936. DOI:10.1155/2011/651936
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ABSTRACT: MéthodesLe profil psychologique a été évalué chez 139 femmes obèses morbides, avant et une année après by-pass gastrique, par des tests psychologiques afin d’établir si des variables psychologiques (troubles du comportement alimentaire, dépression et anxiété) sont un facteur prédictif de la perte de poids après by-pass. RésultatsLa perte de poids moyenne observée à une année est de 37,9 ± 1,4 kg. Les scores de dépression (p < 0,01), les troubles du comportement alimentaire (p < 0,001) et l’affirmation de soi (p < 0,05) sont significativement améliorés une année après by-pass. Cependant, la perte de poids à un an n’a pas été influencée par le profil psychologique des patientes. ConclusionLe profil psychologique n’influence pas la perte de poids pendant la première année suivant la réalisation d’un by-pass gastrique. MethodThe psychological profiles of 139 morbidly obese women was evaluated before and one year after gastric by-pass. Psychological testing was used to determine whether preoperative psychological variables, such as eating disorders, depression and anxiety, are predictive of weight loss after gastric by-pass. ResultsThe average weight loss at one year was 37.9 ± 1.4 kg. Depression scores (p < 0.01), binge eating disorder (p < 0.001) and self-assertiveness (p < 0.05) were significantly improved one year after gastric by-pass. However, weight loss at one year was not influenced by psychological profile. ConclusionPsychological profile does not affect weight loss one year after gastric by-pass.Obésité 06/2007; 2(2):182-187. DOI:10.1007/s11690-007-0051-y
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ABSTRACT: A premise of this study was that different psychological processes would predict the initiation and maintenance of weight loss after surgery for morbid obesity. Our aim was to examine whether more favorable preoperative expectations of psychosocial outcomes predict weight loss in the first year after laparoscopic adjustable gastric banding (LAGB) and whether postoperative satisfaction with these outcomes predicts weight maintenance in the second year after the operation. Six months before and 1 year after surgery, the "Obesity Psychosocial State Questionnaire" was filled out by 91 patients (77 female, 14 male, mean age 45+/-9 years, mean preoperative body mass index 47+/-6 kg/m2). We evaluated the preoperative outcome expectations and the postoperative satisfaction for the seven domains of psychosocial and physical functioning of this questionnaire, as well as the correlations between these scores and both weight loss and weight maintenance. Patients showed high satisfaction with psychosocial outcomes after LAGB in all seven domains (p<0.001), even though the improvement was less than expected in five of the domains (p<or=0.01). While weight loss 1 year after the operation was related to satisfaction with psychosocial outcomes (p<or=0.05), preoperative expectations were not related to weight loss in the first year after surgery, and satisfaction with the outcomes was not related to weight maintenance in the second year after surgery. Our study suggests that surgically induced effects of weight loss and weight maintenance are achieved independently of the patient's preoperative expectations of and postoperative satisfaction with the psychosocial outcomes.Obesity Surgery 07/2008; 19(6):725-31. DOI:10.1007/s11695-008-9572-1 · 3.74 Impact Factor