MMWR Morb Mortal Wkly Rep. 2011 Jun 17;60(23):773-7.
Healthy People 2020 (HP 2020), released in December 2010, outlines numerous public health objectives, including objectives for youth physical activity participation (1). HP 2020 includes three objectives for meeting current federal physical activity guidelines for 1) aerobic physical activity (participation in ≥60 minutes of aerobic activity per day, 7 days per week) (PA 3.1); 2) muscle-strengthening activity (muscle-strengthening activities on ≥3 days per week) (PA 3.2); and 3) aerobic physical activity and muscle-strengthening activity combined (PA 3.3) (1,2). The HP 2020 target for PA 3.1 is 20.2%; targets for PA 3.2 and PA 3.3 are not set because baseline data are not available. To meet the HP 2020 targets for physical activity, promotion of physical activity among female high school students (3), high school students in upper grades (3), and youths with obesity (4) might be warranted, given that these subpopulations are at risk for low levels of physical activity. To determine the proportion of U.S. youths who meet these HP 2020 objectives, CDC analyzed data from the 2010 National Youth Physical Activity and Nutrition Study (NYPANS), a school-based study conducted by CDC that included height and weight measurements and a survey that measured physical activity and dietary behaviors among a nationally representative sample of students in grades 9--12. This report summarizes the results of that analysis, which indicated that among students nationwide in grades 9--12, 15.3% met the aerobic objective, 51.0% met the muscle-strengthening objective, and 12.2% met the objective for both aerobic and muscle-strengthening activities. To improve youth physical activity participation, efforts are needed among CDC, state and local public health agencies, schools, and other public health partners that promote physical activity.
《2020 年健康人》（HP 2020）于 2010 年 12 月发布，概述了许多公共卫生目标，包括青少年身体活动参与的目标（1）。HP 2020 包括三个满足当前联邦身体活动指南的目标，用于 1）有氧运动（每天进行≥60 分钟的有氧运动，每周 7 天）（PA 3.1）；2）肌肉强化活动（每周至少进行 3 天的肌肉强化活动）（PA 3.2）；以及 3）有氧运动和肌肉强化活动的结合（PA 3.3）（1,2）。PA 3.1 的 HP 2020 目标是 20.2%；由于缺乏基线数据，PA 3.2 和 PA 3.3 的目标没有设定。为了实现 HP 2020 的身体活动目标，可能需要在女高中生（3）、高年级高中生（3）和肥胖青少年（4）中推广身体活动，因为这些亚群的身体活动水平较低。为了确定符合这些 HP 2020 目标的美国青少年的比例，疾病预防控制中心分析了来自 2010 年全国青少年身体活动和营养研究（NYPANS）的数据，这是一项由疾病预防控制中心进行的基于学校的研究，其中包括身高和体重测量以及一项调查，该调查测量了全国代表性样本中 9-12 年级学生的身体活动和饮食行为。本报告总结了该分析的结果，表明在全国范围内的 9-12 年级学生中，15.3%达到了有氧运动目标，51.0%达到了肌肉强化目标，12.2%达到了有氧运动和肌肉强化活动的双重目标。为了提高青少年的身体活动参与度，疾病预防控制中心、州和地方公共卫生机构、学校和其他公共卫生伙伴需要共同努力，促进身体活动。
