Final answer:
Approximately 25% of U.S. adults are inactive, with only 20% meeting recommended physical activity guidelines.
Explanation:
One-fourth of adults in the United States are not physically active at all. According to the Center for Disease Control (CDC), only 1 in 5 American adults meet recommended physical activity guidelines. The majority of the U.S. population, more than 80%, does not meet physical activity recommendations (Pleis, Lucas, & Ward, 2009; National Center for Health Statistics (US), 2011).
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