RT Journal Article SR Electronic T1 The physical activity paradox: six reasons why occupational physical activity (OPA) does not confer the cardiovascular health benefits that leisure time physical activity does 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 149 OP 150 DO 10.1136/bjsports-2017-097965 VO 52 IS 3 A1 Andreas Holtermann A1 Niklas Krause A1 Allard J van der Beek A1 Leon Straker YR 2018 UL http://bjsm.bmj.com/content/52/3/149.abstract AB