title: Where does fitness fit in?
authors.forename: William E
authors.initials: WE
authors.lastname: Kraus
authors.forename: Pamela S
authors.initials: PS
authors.lastname: Douglas
mesh_terms: D005080:Exercise Test; D017079:Exercise Tolerance; D005260:Female; D006801:Humans; D010809:Physical Fitness; D011379:Prognosis; D012016:Reference Values; D012307:Risk Factors