Waist circumference, pedometer placement, and step-counting accuracy in youth

Mark G. Abel, James C. Hannon, Patricia A. Eisenman, Lynda B. Ransdell, Marjorie Pett, Daniel P. Williams

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

This study examined whether differences in waist circumference (WC) and pedometer placement (anterior vs. midaxillary vs. posterior) affect the agreement between pedometer and observed steps during treadmill and self-paced walking. Participants included 19 pairs of youth (9–15 years old) who were matched for sex, race, and height and stratified by WC (high WC: HWC; low WC: LWC). Participants performed 3-min treadmill-walking trials at speeds of 59, 72, and 86 m·min-1 and a 400-m self-paced walking trial on level ground. Bland-Altman plots were used to assess the agreement between pedometer and observed steps of spring-levered pedometers by WC, pedometer placement, and walking speed. In the HWC group, the posterior pedometer placement consistently agreed most closely with observed steps at all treadmill speeds and during self-paced walking. In the LWC group, no single pedometer placement consistently agreed most closely with observed steps at all treadmill speeds and during self-paced walking. We conclude that a posterior pedometer placement improves step-count accuracy in most youth with an HWC at a range of walking speeds on level ground.

Original languageEnglish (US)
Pages (from-to)434-444
Number of pages11
JournalResearch Quarterly for Exercise and Sport
Volume80
Issue number3
DOIs
StatePublished - Sep 2009

Keywords

  • Measurement
  • Physical activity
  • Walking

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Nephrology

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    Abel, M. G., Hannon, J. C., Eisenman, P. A., Ransdell, L. B., Pett, M., & Williams, D. P. (2009). Waist circumference, pedometer placement, and step-counting accuracy in youth. Research Quarterly for Exercise and Sport, 80(3), 434-444. https://doi.org/10.1080/02701367.2009.10599581