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The Influence of Monitoring Interval on Data Measurement: An Analysis of Step Counts of University Students

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  • Dagmar Sigmundová

    (Center for Kinanthropology Research, Institute of Active Lifestyle, Faculty of Physical Culture, Palacky University in Olomouc, Tr. Miru 115, Olomouc 77111, Czech Republic)

  • Jana Vašíčková

    (Center for Kinanthropology Research, Institute of Active Lifestyle, Faculty of Physical Culture, Palacky University in Olomouc, Tr. Miru 115, Olomouc 77111, Czech Republic)

  • Jiří Stelzer

    (Department of Kinesiology and Physical Education, Valdosta State University, 1500 N Patterson St., Valdosta, GA 31698, USA)

  • Emil Řepka

    (Faculty of Education, University of South Bohemia, Ceske Budejovice, Jeronymova 10, Ceske Budejovice 37115, Czech Republic)

Abstract

The pedometer is a widely used research tool for measuring the level and extent of physical activity (PA) within population subgroups. The sample used in this study was drawn from a population of university students to examine the influence of the monitoring interval and alternate starting days on step-count activity patterns. The study was part of a national project during 2008–2010. Eligible subjects (641) were selected from a sample of 906 university students. The students wore pedometers continuously for 7 days excluding time for sleep and personal hygiene. Steps per day were logged on record sheets by each student. Data gathering spanned an entire week, and the results were sorted by alternate starting days, by activity for an entire week, by activity for only the weekdays of the one-week monitoring interval and for the two-day weekend. The statistical analysis included ANOVA, intra-class correlation (ICC) analysis, and regression analysis. The ICC analysis suggested that monitoring starting on Monday (ICC = 0.71; 95%CI (0.61–0.79)), Tuesday (ICC = 0.67; 95%CI (0.59–0.75)) or Thursday (ICC = 0.68; 95%CI (0.55–0.79)) improved reliability. The results of regression analysis also indicated that any starting day except Sunday is satisfactory as long as a minimum of four days of monitoring are used.

Suggested Citation

  • Dagmar Sigmundová & Jana Vašíčková & Jiří Stelzer & Emil Řepka, 2013. "The Influence of Monitoring Interval on Data Measurement: An Analysis of Step Counts of University Students," IJERPH, MDPI, vol. 10(2), pages 1-13, January.
  • Handle: RePEc:gam:jijerp:v:10:y:2013:i:2:p:515-527:d:23183
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    References listed on IDEAS

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    1. Dagmar Sigmundová & Walid El Ansari & Erik Sigmund, 2011. "Neighbourhood Environment Correlates of Physical Activity: A Study of Eight Czech Regional Towns," IJERPH, MDPI, vol. 8(2), pages 1-17, January.
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    Cited by:

    1. Dagmar Sigmundová & Erik Sigmund & Jana Vokáčová & Jaroslava Kopčáková, 2014. "Parent-Child Associations in Pedometer-Determined Physical Activity and Sedentary Behaviour on Weekdays and Weekends in Random Samples of Families in the Czech Republic," IJERPH, MDPI, vol. 11(7), pages 1-19, July.

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