title: Tennis, anyone? On the value of sustainable, vigorous physical activity and long-term studies.
authors.forename: David R
authors.initials: DR
authors.lastname: Jacobs
authors.forename: Kathryn H
authors.initials: KH
authors.lastname: Schmitz
mesh_terms: D000368:Aged; D002318:Cardiovascular Diseases / Q000517:prevention & control; D015444:Exercise; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D013177:Sports