title: Inactivity and inaction: we can't afford either.
authors.forename: Manu V
authors.initials: MV
authors.lastname: Chakravarthy
authors.forename: Frank W
authors.initials: FW
authors.lastname: Booth
mesh_terms: D002675:Child, Preschool; D015444:Exercise; D015438:Health Behavior; D006801:Humans; D008019:Life Style; D009765:Obesity / Q000453:epidemiology* / Q000517:prevention & control; D014481:United States / Q000453:epidemiology