RT Journal Article SR Electronic T1 Debating transversus abdominis, the “exercise pill” and whether flying limits athletes’ performance on arrival 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 861 OP 861 VO 42 IS 11 A1 Karim M Khan YR 2008 UL http://bjsm.bmj.com/content/42/11/861.abstract AB