Format

Send to:

Choose Destination
See comment in PubMed Commons below
Health Psychol. 2009 Nov;28(6):690-701. doi: 10.1037/a0016136.

Effective techniques in healthy eating and physical activity interventions: a meta-regression.

Author information

  • 1Centre for Outcomes Research and Effectiveness, University College London, UK. s.michie@ucl.ac.uk

Abstract

OBJECTIVE:

Meta-analyses of behavior change (BC) interventions typically find large heterogeneity in effectiveness and small effects. This study aimed to assess the effectiveness of active BC interventions designed to promote physical activity and healthy eating and investigate whether theoretically specified BC techniques improve outcome.

DESIGN:

Interventions, evaluated in experimental or quasi-experimental studies, using behavioral and/or cognitive techniques to increase physical activity and healthy eating in adults, were systematically reviewed. Intervention content was reliably classified into 26 BC techniques and the effects of individual techniques, and of a theoretically derived combination of self-regulation techniques, were assessed using meta-regression.

MAIN OUTCOME MEASURES:

Valid outcomes of physical activity and healthy eating.

RESULTS:

The 122 evaluations (N = 44,747) produced an overall pooled effect size of 0.31 (95% confidence interval = 0.26 to 0.36, I(2) = 69%). The technique, "self-monitoring," explained the greatest amount of among-study heterogeneity (13%). Interventions that combined self-monitoring with at least one other technique derived from control theory were significantly more effective than the other interventions (0.42 vs. 0.26).

CONCLUSION:

Classifying interventions according to component techniques and theoretically derived technique combinations and conducting meta-regression enabled identification of effective components of interventions designed to increase physical activity and healthy eating.

PsycINFO Database Record (c) 2009 APA, all rights reserved.

PMID:
19916637
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Psychological Association Icon for PubMed Health
    Loading ...
    Write to the Help Desk