Reduction in pedometer-determined physical activity in the adult Danish population from 2007 to 2012

Author:

Matthiessen Jeppe1,Andersen Elisabeth Wreford2,Raustorp Anders34,Knudsen Vibeke Kildegaard1,Sørensen Mette Rosenlund1

Affiliation:

1. Division of Nutrition, National Food Institute, Technical University of Denmark, Søborg, Denmark

2. Department of Applied Mathematics and Computer Science, Technical University of Denmark, Lyngby, Denmark

3. School of Sport Sciences, Linnaeus University, Kalmar, Sweden

4. Department of Food, Nutrition and Sport Sciences, University of Gothenburg, Göteborg, Sweden

Abstract

Aims: To examine the development in pedometer-determined physical activity from 2007–2008 to 2011–2012 in the adult Danish population. Methods: The study population comprised two random samples of 18–75-year-old individuals who took part in cross-sectional studies in 2007–2008 ( n=224) and 2011–2012 ( n=1515). Pedometer data (sealed Yamax SW 200) were obtained for seven consecutive days. Data for 1624 participants (48.2% men) were included in the analysis. An overall step-defined activity level was examined based on a graduated step index (sedentary, low active, somewhat active, active, highly active). The pedometer-determined outcomes were analysed using regression models. Results: A borderline significant decline ( p=0.077) from 8788 to 8341 steps/day (−446 (95% confidence intervals −50, 943)) was found between 2007–2008 and 2011–2012. Furthermore, a 23.7% (95% confidence intervals −41.7%, −0.1%) lower overall step-defined activity level was observed in 2011–2012 compared to 2007–2008. These changes were primarily due to a reduced level of activity among women. The proportion of individuals taking ⩾10,000 steps/day decreased non-significantly from 34.8% to 29.3%, whereas the proportion taking <5000 steps/day did not differ between survey periods. Conclusions: This nationally representative survey suggests an overall reduction in the physical activity level among Danish adults. The reduction was due to a shift in the population distribution from higher to lower levels of activity. If this shift is true, it is worrying from a public health perspective. Our study result needs, however, to be confirmed by other population studies.

Publisher

SAGE Publications

Subject

Public Health, Environmental and Occupational Health,General Medicine

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