title: The validity of objective physical activity monitoring in older individuals.
authors.affiliation: New England Research Institute.
authors.forename: R A
authors.initials: RA
authors.lastname: Washburn
authors.forename: C A
authors.initials: CA
authors.lastname: Janney
authors.forename: J R
authors.initials: JR
authors.lastname: Fenster
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003201:Computers; D015444:Exercise; D006801:Humans; D008499:Medical Records; D008991:Monitoring, Physiologic / Q000295:instrumentation / Q000379:methods*; D015203:Reproducibility of Results