Impact of a standard versus collective-efficacy enhanced intervention to increase physical activity among mothers

Deirdre Dlugonski, Bhibha M. Das, Tiesha R. Martin

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Objective: Mothers have lower moderate-to-vigorous physical activity than non-mothers and this negatively impacts health. Group dynamics interventions have been successful for increasing physical activity, yet studies using these strategies among mothers are limited and rely on self-reported physical activity. The goal of this study was to examine the effectiveness of a collective-efficacy enhanced physical activity intervention that used group dynamics principles compared to a standard group-based intervention. Design: Mothers (N = 86) were randomly assigned to a 6-week intervention (collective-efficacy enhanced) or standard health education/walking group. Main outcome measures: participants wore pedometers for 1-week and completed a self-efficacy questionnaire at pre-intervention, post-intervention, and 3-month follow-up. Results: There were statistically significant increases in activity minutes (p = 0.05) and step counts (p = 0.049) and no changes in self-efficacy (p = 0.74) from pre- to post-intervention. There were no group by time interactions for changes in physical activity or self-efficacy. None of the changes in physical activity were maintained at follow-up. Conclusions: There is a continued need to understand how to use social factors to promote sustained physical activity among mothers.

Original languageEnglish
Pages (from-to)239-253
Number of pages15
JournalPsychology and Health
Issue number2
StatePublished - Feb 1 2020

Bibliographical note

Publisher Copyright:
© 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.


  • Group dynamics
  • pedometer
  • self-efficacy
  • social cognitive theory
  • walking

ASJC Scopus subject areas

  • Applied Psychology
  • Public Health, Environmental and Occupational Health


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