• Paul D Loprinzi, Hyo Lee, and Bradley J Cardinal.
• Department of Exercise Science, Bellarmine University, Donna & Allan Lansing School of Nursing & Health Sciences, Louisville, KY, USA. Electronic address: ploprinzi@bellarmine.edu.
• Prev Med. 2014 Mar 1; 60: 128-30.

ObjectiveTo 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.MethodsData 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 LPAResults47.2% (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.ConclusionsPrograms are needed to increase American's engagement in MVPA, and also ensure that LPA exceeds SED behavior.Copyright © 2013 Elsevier Inc. All rights reserved.

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