title: Daily movement patterns and biological markers among adults in the United States.
abstract: OBJECTIVE
  To examine the combined effects of sedentary (SED), light (LPA) and moderate-to-vigorous physical activity (MVPA) on biological markers among a nationally representative sample of U.S. adults.
  
  
  METHODS
  Data from the 2003-2006 NHANES study was used, with 5580 adults (≥20years) included in the study. Participants wore an ActiGraph 7164 accelerometer with accelerometry data used to create four movement pattern groups: ≥150min/week of MVPA and LPA≥SED; ≥150min/week of MVPA and LPA<SED; <150min/week of MVPA but LPA≥SED; and <150min/week of MVPA and LPA<SED. Blood samples were taken to assess various biological parameters (e.g., cholesterol).
  
  
  RESULTS
  47.2% (SE: 1.2) of Americans engaged in <150min/week of MVPA and had a negative LPA-SED balance. In general, participants who engaged in ≥150min/week of MVPA, regardless of LPA-SED balance, had more favorable biological levels; however, there was evidence showing that even if individuals engaged in <150min/week of MVPA, but if their LPA exceeded SED, they had more favorable levels of triglycerides and insulin.
  
  
  CONCLUSIONS
  Programs are needed to increase American's engagement in MVPA, and also ensure that LPA exceeds SED behavior.
authors.affiliation: Department of Exercise Science, Bellarmine University, Donna & Allan Lansing School of Nursing & Health Sciences, Louisville, KY, USA. Electronic address: ploprinzi@bellarmine.edu.
authors.forename: Paul D
authors.initials: PD
authors.lastname: Loprinzi
authors.affiliation: Department of Sport and Health Sciences, Sangmyung University, Seoul, Republic of Korea.
authors.forename: Hyo
authors.initials: H
authors.lastname: Lee
authors.affiliation: Program in Exercise and Sport Science, School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA.
authors.forename: Bradley J
authors.initials: BJ
authors.lastname: Cardinal
mesh_terms: D061725:Accelerometry / Q000706:statistics & numerical data*; D000328:Adult; D017677:Age Distribution; D000886:Anthropometry; D015415:Biomarkers / Q000032:analysis* / Q000097:blood; D015992:Body Mass Index; D016022:Case-Control Studies; D002908:Chronic Disease / Q000453:epidemiology; D015897:Comorbidity; D003430:Cross-Sectional Studies; D005006:Ethnicity / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity / Q000502:physiology*; D009749:Nutrition Surveys; D011159:Population Surveillance; D012044:Regression Analysis; D057185:Sedentary Behavior; D017678:Sex Distribution; D013997:Time Factors; D014481:United States / Q000453:epidemiology; D055815:Young Adult
chemical_list: D015415:Biomarkers
keywords: Accelerometry; Epidemiology; Light-intensity; Sedentary