Figaro, M. Kathleen; Kritchevsky, Stephen B.; Resnick, Helaine E.; Shorr, Ronald I.; Butler, Javed; Shintani, Ayumi; Penninx, Brenda W.; Simonsick, Eleanor M.; Goodpaster, Bret H.; Newman, Anne B.; Schwartz, Ann V.; Harris, Tamara B.; Health Aging Body Composition Stud