Statistical considerations in the analysis of accelerometry-based activity monitor data

John Staudenmayer, Weimo Zhu, Diane J. Catellier

Research output: Contribution to journalArticlepeer-review

Abstract

We review and discuss three statistical aspects of accelerometer-based estimates of physical activity energy expenditure (PAEE):1) the nature of the relationship between accelerometer output and PAEE;2) statistical aspects of calibration studies; and3) two specialized statistical methods that are applicable to the problem of measurement error modeling and missing data methods. We call for a continuing development of statistical methods that use more characteristics of the accelerometer signal to estimate PAEE, advocate the use of bias and SE statistics and inclusion of cross-validation in accelerometer research designs, and encourage more efforts to understand systematic and random errors in accelerometer-based estimates of PAEE.

Original languageEnglish (US)
Pages (from-to)S61-S67
JournalMedicine and Science in Sports and Exercise
Volume44
Issue numberSUPPL. 1
DOIs
StatePublished - Jan 2012

Keywords

  • accelerometry
  • calibration studies
  • measurement error
  • physical activity energy expenditure

ASJC Scopus subject areas

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

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