[P4–559]: EXERCISE TRAINING‐INDUCED CHANGES ON POSITRON EMISSION TOMOGRAPHY (PET) WITH 2‐DEOXY‐2‐[18F]FLUORO‐D‐GLUCOSE ([18F]FDG) IN MILD COGNITIVELY IMPAIRED OLDER AFRICAN AMERICANS: GEMS STUDY. (1st July 2017) - Obisesan, Thomas O.; Ntekim, Oyonumo; Ngwa, Julius S.; Allard, Joanne S.; Brewer, James B.; Fungwe, Thomas V.