The validity of objective physical activity monitoring in older individuals.
Washburn
R A
RA
New England Research Institute.
Janney
C A
CA
Fenster
J R
JR
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