Jesse Metzger|Diane J. Catellier|Kelly R. Evenson|Margarita S. Treuth|Wayne D. Rosamond|Anna Maria Siega?Riz
Patterns of Objectively Measured Physical Activity in the United States
University of North Carolina at Chapel Hill|University of Maryland Eastern Shore|Johns Hopkins University|University of North Carolina at Chapel Hill
purpose used latent class analysis lca assess patterns physical activity among adults using 7 accelerometer data 20032004 nhanes methods participant determined daily minutes moderatetovigorous physical activity mvpa vigorous physical activity vpa minutes mvpa occurred bouts 10 min participants categorized patterns activity using lca adjusting sociodemographic characteristics results overall mvpa five classes physical activity defined including two least active classes averaged less 25 min mvpa per day represented 787 total study population active class averaged 134 min mvpa per day comprised 09 population results bout minutes mvpa similar patterns produced overall mvpa exception weekend warrior class moderate levels physical activity monday friday much higher level activity weekend particularly sunday class represented 18 population 14 days achieved 10 min vpa 911 days participants accumulated less 1 min vpa lca analysis vpa produce stable results small number participants registering minutes vpa conclusion results indicate large portion us population may classified patterns physical activity represent low levels mvpa throughout week thelca analysis provided novel approach assessing patterns objectively measured physical activity epidemiologic studies