Physical Activity Guidelines for Americans Act - Requires the Secretary of Health and Human Services (HHS) to publish a "Physical Activity Guidelines for Americans" report at least every 10 years that contains physical activity information and guidelines for the general public, based on the preponderance of current scientific and medical knowledge, and including guidelines for identified population subgroups, as needed. Requires any federal agency that proposes to issue any physical activity guidance for the general population or identified subgroups to submit the text of the guidance to the Secretary for review. Prescribes review procedures.