title: Comparison of techniques for self-monitoring eating and exercise behaviors on weight loss in a correspondence-based intervention.
abstract: This study examined whether different methods of self-monitoring eating and exercise behaviors affect the process of self-monitoring and change in body weight in overweight adults. Forty-two subjects participated in a 16-week correspondence-based weight-loss intervention using a pretest-posttest randomized design. Dietary intake was prescribed at 1,200 to 1,500 kcal/day and <30% dietary fat. Physical activity was progressed to 200 minutes/week. Participants were randomly assigned to self-monitoring eating and physical activity behaviors using a traditional detailed method or transitioning to an abbreviated method. Transitioning to an abbreviated method returned significantly more diaries than using a traditional detailed method (P=0.04). Participants completing the study showed no significant difference in weight loss between the traditional detailed method (-7.5+/-5.3 kg) and the abbreviated method (-7.6+/-5.5 kg), with similar results for intention-to-treat analysis (detailed method -3.9+/-5.3 kg vs abbreviated method -4.3+/-5.8 kg). Weight loss was significantly associated with number of self-monitoring diaries completed (r=0.53, P<0.05). Findings suggest the self-monitoring process, rather than the detail of self-monitoring, is important for facilitating weight loss and change in eating and physical activity behaviors. Transitioning to a simplified approach to self-monitoring does not negatively affect short-term weight loss in overweight adults. These results may have implications for improving self-monitoring in overweight adults during periods of weight loss.
authors: Department of Sports Medicine and Nutrition, Physical Activity and Weight Management Research Center, University of Pittsburgh, PA 15260, USA. dih1@pitt.edu
authors: Diane L
authors: DL
authors: Helsel
authors: John M
authors: JM
authors: Jakicic
authors: Amy D
authors: AD
authors: Otto
mesh_terms: D000328:Adult; D001521:Behavior Therapy / Q000379:methods*; D015930:Diet Records; D004038:Diet, Reducing; D004435:Eating / Q000502:physiology / Q000523:psychology*; D015444:Exercise / Q000502:physiology / Q000523:psychology*; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D009765:Obesity / Q000178:diet therapy / Q000523:psychology* / Q000628:therapy; D012650:Self Disclosure; D013997:Time Factors; D016896:Treatment Outcome; D015431:Weight Loss