Step-based translation of physical activity guidelines in the Lower Mississippi Delta

Deirdre M. Harrington, Catrine Tudor-Locke, Catherine M. Champagne, Stephanie T. Broyles, David W. Harsha, Betty M. Kennedy, William D. Johnson, Ray Allen, Peter T. Katzmarzyk

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


To determine how many steps·day -1 equate to current moderate-to-vigorous physical activity (MVPA) guidelines in a population from the Lower Mississippi Delta (LMD) of the United States, 58 overweight adults wore an Actigraph accelerometer (GT3X) for up to 2 weeks. Min·day -1 in MVPA was a good predictor of steps·day -1 (r 2 = 0.62; p < 0.001; linear regression), such that 30 min of daily MVPA equated to 9154 steps·day -1 (mixed-model approach). Using receiver operating characteristic analysis, sensitivity and specificity were optimized at 8357 steps·day -1. Results indicate that overweight residents of the LMD should be accumulating at least 8300-9100 steps·day -1 to meet the recommendation of 30 min·day -1 MVPA.
Original languageEnglish
Pages (from-to)583-585
Number of pages3
JournalAppl. Physiol. Nutr. Metab.
Issue number4
Publication statusPublished - 19 Aug 2011


  • accelerometer
  • mississippi delta
  • moderate to vigorous
  • overweight adults
  • physical activity
  • step targets
  • ambulatory monitoring
  • article
  • cross-sectional study
  • female
  • human
  • male
  • methodology
  • middle aged
  • motor activity
  • obesity
  • physiology
  • practice guideline
  • receiver operating characteristic
  • sensitivity and specificity
  • statistics
  • time
  • United States
  • walking


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