Annals of Behavioral Medicine

, Volume 51, Issue 4, pp 578–586 | Cite as

Increasing Physical Activity Through Principles of Habit Formation in New Gym Members: a Randomized Controlled Trial

  • Navin Kaushal
  • Ryan E. Rhodes
  • John C. Spence
  • John T. Meldrum
Original Article

Abstract

Background

The promotion of physical activity (PA) is paramount to public health, yet interventions in the social cognitive tradition have yielded negligible improvements. The limited progression may be due to an overreliance on intention as the proximal determinant of behavior and a lack of consideration of implicit/automatic processes. The purpose of this study was to examine the impact of a habit formation intervention on PA over 8 weeks in a two-arm parallel design, randomized controlled trial.

Methods

Participants (n = 94) were new gym members with the intention to engage in PA but below international PA guidelines at baseline, who were randomized into a control or habit experimental group. The experimental group attended a workshop (at baseline) and received a follow-up booster phone call at week 4. The primary outcome of the study was minutes of moderate-vigorous intensity PA (MVPA) at week 8. The secondary outcome was a manipulation check to determine if the experimental group effectively incorporated habit-building constructs (cues and practice consistency).

Results

The experimental group showed a significant increase in MVPA after 8 weeks in both accelerometry (d = 0.39, p = .04) and self-report (d = 0.53, p = .01) compared with the control group. The experimental group also showed an increase in use of cues (d = 0.56, p < .001) and practice consistency (d = 0.40, p = .01) at week 8.

Conclusion

The results contribute to the initial validity of increasing PA through a focus on preparation cues and practice consistency. Future research should replicate these findings and extend the duration of assessment to evaluate whether PA changes are sustained.

RegisteredTrial Number NCT02785107

Keywords

Habit Automaticity Exercise MVPA RCT 

Supplementary material

12160_2017_9881_MOESM1_ESM.docx (40 kb)
Supplementary Table 1(DOCX 39 kb).

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Copyright information

© The Society of Behavioral Medicine 2017

Authors and Affiliations

  1. 1.Faculty of Medicine, Montreal Heart InstituteUniversity of MontrealMontrealCanada
  2. 2.University of VictoriaVictoriaCanada
  3. 3.University of AlbertaEdmontonCanada

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