RT Journal Article SR Electronic T1 Sliding down the risk factor rankings: reasons for and consequences of the dramatic downgrading of physical activity in the Global Burden of Disease 2019 JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 1222 OP 1223 DO 10.1136/bjsports-2021-104064 VO 55 IS 21 A1 Emmanuel Stamatakis A1 Ding Ding A1 Ulf Ekelund A1 Adrian E Bauman YR 2021 UL http://bjsm.bmj.com/content/55/21/1222.abstract AB