Effect of a physical activity and behaviour maintenance programme on functional mobility decline in older adults: the REACT (Retirement in Action) randomised controlled trial oleh Afroditi Stathi, ProfPhD, Colin J Greaves, ProfPhD, Janice L Thompson, ProfPhD, Janet Withall, PhD, Peter Ladlow, PhD, Gordon Taylor, ProfPhD, Antonieta Medina-Lara, PhD, Tristan Snowsill, PhD, Selena Gray, ProfMD, Colin Green, ProfPhD, Heidi Johansen-Berg, ProfPhD, Claire E Sexton, PhD, James L J Bilzon, ProfPhD, Jolanthe deKoning, PhD, Jessica C Bollen, PhD, Sarah J Moorlock, MSc, Max J Western, PhD, Naiara Demnitz, DPhil, Poppy Seager, MSc, Jack M Guralnik, ProfMD, W Jack Rejeski, ProfPhD, Melvyn Hillsdon, PhD, Kenneth R Fox, ProfPhD