Mediators of physical activity change in a behavioral modification program for type 2 diabetes patients

International Journal of Behavioral Nutrition and Physical Activity

Research

Neville Owen¹  Johannes Ruige²  Jean-Marc Kaufman²  Karlijn De Greef³  Ilse De Bourdeaudhuij³  Benedicte Deforche⁴  Delfien Van Dyck⁵  Catrine E Tudor-Locke⁶ 

[1] Baker IDI Heart and Diabetes Institute, Melbourne; The University of Queensland, Brisbane, Australia;Department of Endocrinology, Ghent University Hospital, De Pintelaan 185, 9000, Ghent, Belgium;Department of Movement and Sport Sciences, Ghent University, Watersportlaan 2, 9000, Ghent, Belgium;Department of Movement and Sport Sciences, Ghent University, Watersportlaan 2, 9000, Ghent, Belgium;Department of Human Biometry and Biomechanics, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium;Department of Movement and Sport Sciences, Ghent University, Watersportlaan 2, 9000, Ghent, Belgium;Research Foundation Flanders (FWO), Belgium;Walking Behavior Laboratory, Pennington Biomedical Research Center, 6400 Perkins Road, 70808, Baton Rouge, LA, USA;

关键词: Physical Activity;    Physical Activity Behavior;    Physical Activity Intervention;    International Physical Activity Questionnaire;    Autonomous Motivation;   

DOI  :  10.1186/1479-5868-8-105

 received in 2010-08-27, accepted in 2011-09-29,  发布年份 2011

来源: Springer

【 摘 要 】

BackgroundMany studies have reported significant behavioral impact of physical activity interventions. However, few have examined changes in potential mediators of change preceding behavioral changes, resulting in a lack of information concerning how the intervention worked. Our purpose was to examine mediation effects of changes in psychosocial variables on changes in physical activity in type 2 diabetes patients.MethodsNinety-two patients (62 ± 9 years, 30, 0 ± 2.5 kg/m2, 69% males) participated in a randomized controlled trial. The 24-week intervention was based on social-cognitive constructs and consisted of a face-to-face session, telephone follow-ups, and the use of a pedometer. Social-cognitive variables and physical activity (device-based and self-reported) were collected at baseline, after the 24-week intervention and at one year post-baseline. PA was measured by pedometer, accelerometer and questionnaire.ResultsPost-intervention physical activity changes were mediated by coping with relapse, changes in social norm, and social modeling from family members (p ≤ 0.05). One-year physical activity changes were mediated by coping with relapse, changes in social support from family and self-efficacy towards physical activity barriers (p ≤ 0.05)ConclusionsFor patients with type 2 diabetes, initiatives to increase their physical activity could usefully focus on strategies for resuming regular patterns of activity, on engaging family social support and on building confidence about dealing with actual and perceived barriers to activity.Trial RegistrationNCT00903500, ClinicalTrials.gov.

【 授权许可】

Unknown   
© Van Dyck et al; licensee BioMed Central Ltd. 2011. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.