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Accelerometer-measured dose-response for physical activity, sedentary time, and mortality in US adults

  • Charles E. Matthews*
  • , Sarah Kozey Keadle
  • , Richard P. Troiano
  • , Lisa Kahle
  • , Annemarie Koster
  • , Robert Brychta
  • , Dane Van Domelen
  • , Paolo Caserotti
  • , Kong Y. Chen
  • , Tamara B. Harris
  • , David Berrigan
  • *Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Background: Moderate-to-vigorous intensity physical activity is recommended to maintain and improve health, but the mortality benefits of light activity and risk for sedentary time remain uncertain. Objectives: Using accelerometer-based measures, we 1) described the mortality dose-response for sedentary time and light- and moderate-to-vigorous intensity activity using restricted cubic splines, and 2) estimated the mortality benefits associated with replacing sedentary time with physical activity, accounting for total activity. Design: US adults (n = 4840) from NHANES (2003-2006) wore an accelerometer for
Original languageEnglish
Pages (from-to)1424-1432
Number of pages9
JournalAmerican Journal of Clinical Nutrition
Volume104
Issue number5
DOIs
Publication statusPublished - Nov 2016

Keywords

  • sedentary behavior
  • physical activity
  • mortality
  • accelerometer
  • light-intensity activity
  • moderate-to-vigorous intensity activity

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