title: New thinking on older adults' physical activity.
authors.affiliation: Department of Psychology, San Diego State University, San Diego, California 92103, USA. sallis@mail.sdsu.edu
authors.forename: James F
authors.initials: JF
authors.lastname: Sallis
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D006801:Humans; D011322:Primary Prevention / Q000639:trends