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

Appl Physiol Nutr Metab. 2011 Aug;36(4):583-5. doi: 10.1139/h11-053. Epub 2011 Aug 19.

Abstract

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.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Cross-Sectional Studies
  • Female
  • Guideline Adherence / statistics & numerical data*
  • Humans
  • Male
  • Middle Aged
  • Mississippi
  • Monitoring, Ambulatory / methods*
  • Monitoring, Ambulatory / statistics & numerical data*
  • Motor Activity / physiology*
  • Overweight / therapy*
  • ROC Curve
  • Sensitivity and Specificity
  • Time Factors
  • Walking / physiology*
  • Walking / statistics & numerical data*