A hybrid online intervention for reducing sedentary behavior in obese women

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Abstract

Sedentary behavior (SB) has emerged as an independent risk factor for cardiovascular disease and type 2 diabetes.While exercise is known to reduce these risks, reducing SB through increases in non-structured PA and breaks fromsittingmay appeal to obesewomen who have lower self-efficacy for PA. This study examined effects of a combined face-to- face and online intervention to reduce SB in overweight and obese women. A two-group quasi-experimental study was used with measures taken pre and post. Female volunteers (M ageD58.5, SDD12.5 years) were enrolled in the intervention (nD40) or waitlisted (nD24).The intervention, based on the Social CognitiveTheory, combined group sessions with email messages over 6weeks. Individualized feedback to support mastery and peer models of active behaviorswere included in the emails. Participants self-monitored PAwith a pedometer. Baseline and post measures of PA and SB were assessed by accelerometer and self-report. Standard measures of height, weight, and waist circumference were con- ducted. Repeated measures ANOVA was used for analyses. Self-reported SB and light PA in the intervention group (I) changed significantly over time [SB, F(1, 2)D3.81, p D0.03, light PA, F(1, 2)D3.39, p D0.04]. Significant Group×Time interactions were found for light PA, F(1, 63)D5.22, p D0.03, moderate PA, F(1, 63)D3.90, p D0.05, and for waist circumference, F(1, 63)D16.0, p D0.001. The intervention group decreased significantly while the comparison group was unchanged. Hybrid computer interventions to reduce SB may provide a non-exercise alternative for increasing daily PA and potentially reduce waist circumference, a risk factor for type 2 diabetes. Consumer-grade accelerometers may aide improvements to PA and SB and should be tested as part of future interventions.

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Adams, M. M., Davis, P. G., & Gill, D. L. (2013). A hybrid online intervention for reducing sedentary behavior in obese women. Frontiers in Public Health, 1(OCT). https://doi.org/10.3389/fpubh.2013.00045

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