RT Journal Article SR Electronic T1 Mathematical coupling causes spurious correlation within the conventional acute-to-chronic workload ratio calculations 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 921 OP 922 DO 10.1136/bjsports-2017-098110 VO 53 IS 15 A1 Lolli, Lorenzo A1 Batterham, Alan M A1 Hawkins, Richard A1 Kelly, David M A1 Strudwick, Anthony J A1 Thorpe, Robin A1 Gregson, Warren A1 Atkinson, Greg YR 2019 UL http://bjsm.bmj.com/content/53/15/921.abstract AB