title: Physical Activity, Decision-Making Abilities, and Eating Disturbances in Pre- and Postbariatric Surgery Patients.
abstract: Physical activity (PA) is considered to have a beneficial influence on executive functioning, including decision-making. Enhanced decision-making after bariatric surgery may strengthen patients' ability to delay gratification, helping to establish appropriate eating behavior. The objectives of this study were to (1) compare a preoperative group with a postoperative group with regard to daily PA, decision-making, and eating disturbances; and (2) investigate the relationship between these variables.
  
  
  
  The study included 71 bariatric surgery candidates (78 % women, BMI [kg/m2] M = 46.9, SD = 6.0) and 73 postoperative patients (78 % women, BMI M = 32.0, SD = 4.1; 89 % Roux-en-Y gastric bypass, 11 % sleeve gastrectomy; months postoperative M = 8.2, SD = 3.5; total weight loss [%] M = 33.2, SD = 8.9) who completed SenseWear Pro2activity monitoring. Decision-making was assessed using a computerized version of the Iowa Gambling Task and eating disorder psychopathology using the Eating Disorder Examination-Questionnaire.
  
  
  
  The number of patients who were classified as physically inactive was similarly high in the pre- and postoperative groups. No group differences emerged with regard to decision-making, but the postoperative group exhibited less eating disturbances than the preoperative group. No significant associations were found between PA, decision-making, and eating behavior.
  
  
  
  Patients after bariatric surgery were not more physically active than bariatric surgery candidates, which should be considered in care programs. Additionally, future research is needed to explore the possible link between PA, patients' decision-making abilities, and eating disturbances concerning dose-response questions.
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
authors.forename: Merle
authors.initials: M
authors.lastname: Bartsch
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
authors.forename: Svenja
authors.initials: S
authors.lastname: Langenberg
authors.affiliation: Department of Surgery, Herzogin Elisabeth Hospital, Braunschweig, Germany.
authors.forename: Kerstin
authors.initials: K
authors.lastname: Gruner-Labitzke
authors.affiliation: Peter L. Reichertz Institut for Medical Informatics, University of Braunschweig-Institute of Technology and Hannover Medical School, Hannover, Germany.
authors.forename: Mareike
authors.initials: M
authors.lastname: Schulze
authors.affiliation: Department of Surgery, Herzogin Elisabeth Hospital, Braunschweig, Germany.
authors.forename: Hinrich
authors.initials: H
authors.lastname: Köhler
authors.affiliation: Neuropsychiatric Research Institute and Department of Psychiatry and Behavioral Science, University of North Dakota School of Medicine and Health Sciences, Fargo, ND, USA.
authors.forename: Ross D
authors.initials: RD
authors.lastname: Crosby
authors.affiliation: Peter L. Reichertz Institut for Medical Informatics, University of Braunschweig-Institute of Technology and Hannover Medical School, Hannover, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Marschollek
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
authors.forename: Martina
authors.initials: M
authors.lastname: de Zwaan
authors.affiliation: Department of Psychosomatic Medicine and Psychotherapy, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany. Mueller.Astrid@mh-hannover.de.
authors.forename: Astrid
authors.initials: A
authors.lastname: Müller
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D050110:Bariatric Surgery; D003657:Decision Making; D056344:Executive Function; D015444:Exercise; D001068:Feeding and Eating Disorders; D005260:Female; D005715:Gambling; D006801:Humans; D008875:Middle Aged; D009767:Obesity, Morbid / Q000523:psychology* / Q000601:surgery; D011184:Postoperative Period; D057234:Preoperative Period; D011795:Surveys and Questionnaires; D015431:Weight Loss / Q000502:physiology; D055815:Young Adult
keywords: Accelerometry; Bariatric surgery; Decision-making; Eating disorder symptoms; Iowa Gambling Task; Physical activity