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mHealth to Support Outdoor Gym Resistance Training: The ecofit Effectiveness RCT.

Ronald C Plotnikoff1, Anna K Jansson1, Mitch J Duncan2

  • 1Centre for Active Living and Learning, School of Education, The University of Newcastle, Callaghan, Australia; Active Living Research Program, Hunter Medical Research Institute, New Lambton Heights, Australia.

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|February 21, 2023
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Summary
This summary is machine-generated.

This study shows that a mobile health (mHealth) intervention improved muscular fitness in Australian adults. The ecofit app, using outdoor gyms, boosted resistance training and confidence.

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Area of Science:

  • Public Health
  • Exercise Science
  • Digital Health

Background:

  • Low adherence to resistance training guidelines in Australian adults (9%-30%).
  • Need for scalable, community-based interventions to promote resistance training.
  • mHealth interventions offer a potential solution for widespread physical activity promotion.

Purpose of the Study:

  • To assess the impact of an innovative mHealth intervention on muscular fitness, cardiorespiratory fitness, physical activity, and social-cognitive factors.
  • To evaluate the effectiveness of the community-based ecofit intervention.
  • To determine if mHealth can improve resistance training behaviors and outcomes in adults.

Main Methods:

  • Cluster randomized controlled trial (RCT) involving 245 community-dwelling adults in New South Wales, Australia.
  • Intervention group used a smartphone app with tailored workouts for outdoor gyms; control group was on a waitlist.
  • Muscular fitness assessed via push-up and sit-to-stand tests at baseline, 3, and 9 months.

Main Results:

  • Significant improvements in upper-body (1.4 reps) and lower-body (2.6 reps) muscular fitness at 9 months.
  • Statistically significant increases in self-reported resistance training, self-efficacy, and implementation intention at 3 and 9 months.
  • No significant changes observed at the 3-month follow-up for muscular fitness.

Conclusions:

  • A mHealth intervention utilizing the built environment (outdoor gyms) can enhance muscular fitness in community-dwelling adults.
  • The ecofit intervention positively influenced physical activity behavior and related social-cognitive factors.
  • This approach demonstrates the potential of mHealth for promoting resistance training at scale.