A randomized controlled trial comparing community lifestyle interventions to improve adherence to diet and physical activity recommendations: the VitalUM study

Worldwide, adherence to national guidelines for physical activity (PA), and fruit and vegetable consumption is recommended to promote health and reduce the risk for (chronic) disease. This study reports on the effectiveness of various social-cognitive interventions to improve adherence to guidelines and the revealed adherence predictors....

Examining motivational interviewing fidelity in an RCT

Oral presentation at the 4th International Conference on Motivational Interviewing (ICMI), June 16-18, 2014, Amsterdam, the Netherlands.

Tailored print communication and telephone motivational interviewing are equally successful in improving multiple lifestyle behaviors in a randomized controlled trial

Background: Computer tailoring and motivational interviewing show promise in promoting lifestyle change, despite few head-to-head comparative studies. Purpose: Vitalum is a randomized controlled trial in which the efficacy of these methods was compared in changing physical activity and fruit and vegetable consumption in middle-aged Dutch adults....

Krachtvoer: Effect evaluation of a Dutch healthful diet promotion curriculum for lower vocational schools

Objective: The aim of this study was to assess the behavioural effects of a school-based healthful diet promotion intervention implemented in lower vocational schools. Design: A cluster-randomised pre-test-post-test experimental design was used, and data were collected by means of written questionnaires. Setting: Students of 18 Dutch lower...

Krachtvoer: Effect evaluation of a Dutch healthful diet promotion curriculum for lower vocational schools

Objective: The aim of this study was to assess the behavioural effects of a schoolbased healthful diet promotion intervention implemented in lower vocational schools. Design: A cluster-randomised pre-test–post-test experimental design was used, and data were collected by means of written questionnaires. Setting: Students of 18 Dutch lower...

Process evaluation of 'learn young, learn fair': A stress management programme for 5th and 6th graders

This article describes the process evaluation of a stress management program called 'Learn Young, Learn Fair' for 5th and 6th graders. Studies, reviews and meta-analyses of prevention programs report that a common limitation in studies is the restricted documentation of process factors that contribute to the success of interventions. Program...

Sexual decision-making in HIV-positive mane who have sex with men: How moral concerns and sexual motives guMS ARe intened condom use with steady and casual sex partners

Determinants of intended condom use with steady and casual sex partners were examined among Dutch HIV-positive men who have sex with men (MSM) (N = 296). Given the proposition that safer sex behavior among HIV-positive people is a form of prosocial behavior, the present study extended the general framework of the Theory of Planned Behavior with...