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Effectiveness of a web-based, computer-tailored, pedometer-based physical activity intervention for adults: a cluster
Sofie Compernolle1, Corneel Vandelanotte, Greet Cardon
1Physical Activity, Fitness and Health, Department of Movement and Sports Sciences, Ghent University, Gent, Belgium. sofie.compernolle@ugent.be.
Journal of Medical Internet Research
|February 11, 2015
Summary
A computer-tailored physical activity (PA) intervention using pedometers effectively increased daily steps in working adults, particularly those not meeting 10,000 steps. This objective approach enhances intervention credibility and impact.
Area of Science:
- Public Health
- Digital Health
- Exercise Science
Background:
- Internet-based physical activity (PA) interventions show promise for population-level health promotion.
- Current interventions often rely on subjective PA measures, limiting accuracy and effectiveness.
- This study introduces a novel computer-tailored PA intervention utilizing objective pedometer data.
Purpose of the Study:
- To evaluate the effectiveness of a computer-tailored, pedometer-based PA intervention.
- To assess intervention impact on objectively measured and self-reported PA in working adults.
Main Methods:
- Randomized controlled trial with 274 working adults (137 intervention, 137 control).
- Intervention group received a booklet, pedometer, and tailored online advice.
- PA assessed via self-report and pedometer at baseline, 1 month, and 3 months.
Main Results:
- Significant increases in daily step counts observed in the intervention group at 1 and 3 months (p=.004, p=.03).
- At-risk participants ( <10,000 steps/day) showed a mean increase of 1056 steps versus a decrease in controls.
- Self-reported walking time increased significantly in at-risk participants at 1 month (p=.02).
Conclusions:
- Computer-tailored, pedometer-based PA interventions effectively increase PA levels, especially in at-risk populations.
- Objective measurement enhances the credibility and effectiveness of digital health interventions.
- Improved participant recruitment and retention strategies are needed to maximize public health impact.
