RT Journal Article SR Electronic T1 Short and sporadic bouts in the 2018 US physical activity guidelines: is high-intensity incidental physical activity the new HIIT? 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 1137 OP 1139 DO 10.1136/bjsports-2018-100397 VO 53 IS 18 A1 Stamatakis, Emmanuel A1 Johnson, Nathan A A1 Powell, Lauren A1 Hamer, Mark A1 Rangul, Vegar A1 Holtermann, Andreas YR 2019 UL http://bjsm.bmj.com/content/53/18/1137.abstract AB