Department of Exercise Science, Bellarmine University, Donna & Allan Lansing School of Nursing & Health Sciences, Louisville, KY, USA.
Department of Sport and Health Sciences, Sangmyung University, Seoul, Republic of Korea.
Prev Med. 2014 Mar;60:128-30. doi: 10.1016/j.ypmed.2013.12.017. Epub 2013 Dec 25.
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.
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).
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.
Programs are needed to increase American's engagement in MVPA, and also ensure that LPA exceeds SED behavior.
在美国成年人的全国代表性样本中，考察久坐（SED）、低强度（LPA）和中高强度体力活动（MVPA）的综合效应对生物标志物的影响。
使用 2003-2006 年 NHANES 研究的数据，研究纳入了 5580 名成年人（≥20 岁）。参与者佩戴 ActiGraph 7164 加速度计，加速度计数据用于创建四个运动模式组：每周≥150 分钟的 MVPA 和 LPA≥SED；每周≥150 分钟的 MVPA 和 LPA<SED；每周<150 分钟的 MVPA，但 LPA≥SED；以及每周<150 分钟的 MVPA 和 LPA<SED。采集血样以评估各种生物参数（如胆固醇）。
47.2%（SE：1.2）的美国人每周进行<150 分钟的 MVPA，且 LPA-SED 处于负平衡状态。一般来说，无论 LPA-SED 平衡如何，每周进行≥150 分钟的 MVPA 的参与者具有更有利的生物水平；然而，有证据表明，即使个体每周进行<150 分钟的 MVPA，但如果他们的 LPA 超过 SED，他们的甘油三酯和胰岛素水平也更有利。
需要制定计划来提高美国人对 MVPA 的参与度，并确保 LPA 超过 SED 行为。
