Changes in physical activity and body composition in postmenopausal women over time.

Med Sci Sports Exerc 2013;45:1486-92

Sims ST, Kubo J, Desai M, Bea J, Beasley JM, Manson JE, Allison M, Seguin RA, Chen Z, Michael YL, Sullivan SD,Beresford S, Stefanick ML