MMWR Morb Mortal Wkly RepMMWR Morb. Mortal. Wkly. RepMMWRMMWR. Morbidity and Mortality Weekly Report0149-21951545-861XU.S. Centers for Disease Control4584740655Quick StatsQuickStatsFROM THE NATIONAL CENTER FOR HEALTH STATISTICS1962015196201564236556552015All material in the MMWR Series is in the public domain and may be used and reprinted without permission; citation as to source, however, is appreciated.

Percentage of Adults Aged =18 Years Who Met National Guidelines for Aerobic Activity and Muscle Strengthening,* by Age Group — National Health Interview Survey, United States, 2008 and 2013†

* Per U.S. Department of Health and Human Services 2008 Physical Activity Guidelines for Americans. Available at http://www.health.gov/paguidelines/guidelines/default.aspx. Respondents defined as meeting both aerobic-activity and muscle-strengthening guidelines reported moderate-intensity physical activity for ≥150 minutes per week, vigorous-intensity physical activity for ≥75 minutes per week, or an equivalent combination of moderate- and vigorous-intensity activity, and engaging in physical activities specifically designed to strengthen muscles at least twice per week.

† Estimates are based on household interviews of a sample of the civilian, noninstitutionalized U.S. population and are derived from the National Health Interview Survey sample adult component.

§ 95% confidence interval.

The percentage of adults aged ≥18 years who met the aerobic-activity and muscle-strengthening guidelines increased from 18.2% in 2008 to 20.8% in 2013. Adults aged 18–44 years were the most likely to meet the aerobic-activity and muscle-strengthening guidelines, and those aged ≥65 years were the least likely in both 2008 and 2013. For all age groups, the percentage meeting the guidelines increased from 2008 to 2013.

Source: CDC. National Health Interview Survey data, 2008 and 2013. Available at http://www.cdc.gov/nchs/nhis.htm.

Reported by: Travis Combest, MS; Sirin Yaemsiri, PhD, syaemsiri@cdc.gov, 301-458-4186; Deepthi Kandi.