title: Mediation of Weight Loss and Weight Loss Maintenance through Dietary Disinhibition and Restraint.
abstract: Understanding the degree to which eating behaviors, such as disinhibition and restraint, are associated with weight loss and weight loss maintenance could contribute to further refinement of effective weight management intervention strategies. The purpose of this analysis was to examine if these factors mediate weight loss or weight loss maintenance using data from a randomized controlled trial testing a commercial weight loss program that delivered behavioral counseling and structured meal plans including prepackaged foods. Mediation analyses were used to examine whether changes in disinhibition and restraint mediated the relationship between intervention and weight change during initial weight loss (0-6 months), continued weight loss (6-12 months), or weight loss maintenance (12-24 months) phases. Only decreases in disinhibition between baseline and 6 months mediated the intervention effect on initial weight loss. Our results suggest the mediation effects of these eating behaviors are modest and other factors contribute to a larger, more complex long-term weight loss prognosis.
authors.affiliation: HealthPartners Institute for Education and Research,8170 33rd Ave S, Mailstop 21111R, PO Box 1524, Bloomington, MN 55440-1524.
authors.forename: Meghan M
authors.initials: MM
authors.lastname: JaKa
authors.affiliation: HealthPartners Institute for Education and Research,8170 33rd Ave S, Mailstop 21111R, PO Box 1524, Bloomington, MN 55440-1524.
authors.forename: Nancy E
authors.initials: NE
authors.lastname: Sherwood
authors.affiliation: Department of Family and Preventive Medicine, University of California-San Diego, 3855 Health Sciences Drive, La Jolla, CA 92093-0901.
authors.forename: Shirley W
authors.initials: SW
authors.lastname: Flatt
authors.affiliation: Division of Epidemiology and Community Health, University of Minnesota, 1300 S 2nd St, Minneapolis, MN55415.
authors.forename: Carly R
authors.initials: CR
authors.lastname: Pacanowski
authors.affiliation: Department of Family and Preventive Medicine, University of California-San Diego, 3855 Health Sciences Drive, La Jolla, CA 92093-0901.
authors.forename: Bilgé
authors.initials: B
authors.lastname: Pakiz
authors.affiliation: Mel and Enid Zuckerman College of Public Health, Department of Nutritional Sciences, University of Arizona, Tucson, AZ, 1250 E. Martin Street, Tucson, AZ 85721.
authors.forename: Cynthia A
authors.initials: CA
authors.lastname: Thomson
authors.affiliation: Department of Family and Preventive Medicine, University of California-San Diego, 3855 Health Sciences Drive, La Jolla, CA 92093-0901.
authors.forename: Cheryl L
authors.initials: CL
authors.lastname: Rock
keywords: Commercial Weight Loss Programs; Disinhibition; Eating Behavior; Mediation; Restraint; Weight Loss Maintenance