Motivational interviewing and self-determination theory in a web-based computer tailored physical activity intervention: A randomized controlled trial. Issue 8 (2nd August 2016)

• Record Type: Journal Article
• Authors: Friederichs, Stijn A.H.; Oenema, Anke; Bolman, Catherine; Lechner, Lilian
• Is Part Of: Psychology & health. Volume 31:Issue 8(2016)
• Page Start: 907
• Page End: 930
• Publication Date: 2016-08-02
• Subjects: physical activity -- motivational interviewing self-determination theory; Clinical health psychology -- Periodicals; Attitude to Health -- Periodicals; Public Opinion -- Periodicals; Psychology -- Periodicals; 150
• DOI: 10.1080/08870446.2016.1151018
• Languages: English
• ISSNs: 0887-0446

Abstract

Abstract : Objective: This study explores whether a web-based physical activity (PA) intervention grounded in self-determination theory (SDT) and motivational interviewing (MI) is more effective and better appreciated than a traditional web-based PA intervention. Design: A randomized controlled trial was conducted, comparing (1) I Move; a web-based PA intervention based on SDT and MI, (2) Active Plus; a traditional web-based PA intervention and (3) a waiting list control condition. Main outcome measures: Weekly minutes of moderate to vigorous PA and weekly days with ≥30 min PA were measured through self-report at baseline and at 3 and 6 months from baseline. Results: I Move achieved a small, but significant increase in weekly minutes of moderate to vigorous PA, while Active Plus did not have a significant impact on this outcome. Both interventions were effective in increasing weekly days with ≥30 min PA, whereas Active Plus yielded a greater effect on this outcome. Conclusion: Overall, the web-based PA intervention grounded in SDT and MI did not outperform the traditional web-based PA intervention. Further research should reveal whether this type of intervention is profitable for long-term maintenance of PA levels.