RT Journal Article SR Electronic T1 Letter in response to: ‘Which specific modes of exercise training are most effective for treating low back pain? Network meta-analysis’ by Owen et al 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 285 OP 286 DO 10.1136/bjsports-2019-101812 VO 55 IS 5 A1 Chris G Maher A1 Jill A Hayden A1 Bruno T Saragiotto A1 Tie P Yamato A1 Matthew K Bagg YR 2021 UL http://bjsm.bmj.com/content/55/5/285.abstract AB