(YOUNG INVESTIGATOR AWARD) PHYSICAL ACTIVITY IS ASSOCIATED WITH INCREASED VOLUMETRIC BONE DENSITY AND BONE STRENGTH IN EARLY CHILDHOOD - Cole, Z; Harvey, N; Kim, M; Inskip, H; Godfrey, K; Dennsion, E; Wareham, N; Ekelund, U; Cooper, C (OSTEOPOROSIS INTERNATIONAL, 2010)