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Updated: Apr 18, 2026
Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
Published on: March 7, 2019
Randomized Controlled Trial of an Improved Version of MobileMums, an Intervention for Increasing Physical Activity in
Brianna S Fjeldsoe1, Yvette D Miller, Nicholas Graves
1School of Population Health, Cancer Prevention Research Centre, The University of Queensland, Brisbane, Australia.
Background:
Women with young children (<5 years) are an important group for physical activity intervention.
Purpose:
The objective of the study was to evaluate the feasibility, acceptability, and efficacy of MobileMums-a physical activity intervention for women with young children.
Methods:
Women were randomized to MobileMums (n = 133) or a control group (n = 130). MobileMums was delivered primarily via individually tailored text messages. Moderate to vigorous physical activity (MVPA) was measured by self-report and an accelerometer at baseline, end of the intervention (13 weeks), and 6 months later (9 months). Changes were analyzed using repeated-measures models.
Results:
MobileMums was feasible to deliver and acceptable to women. Self-reported MVPA duration (minutes/week) and frequency (days/week) increased significantly post-intervention (13-week intervention effect 48.5 min/week, 95 % credible interval (CI) [13.4, 82.9] and 1.6 days/week, 95 % CI [0.6, 2.6]). Intervention effects were not maintained 6 months later. No effects were observed in accelerometer-derived MVPA.
Conclusions:
MobileMums increased women's self-reported MVPA immediately post-intervention. Future investigations need to target sustained physical activity improvements (ACTRN12611000481976).
