Expression of concern: Which specific modes of exercise training are most effective for treating low back pain? Network meta-analysis.

Editorial Note As discussed in a recent editorial, the British Journal of Sports Medicine (BJSM) rescinds the Expression of Concern [1] for a recent network meta-analysis (NMA) [2] that was issued solely on the basis of comments by Professor Maher and colleagues [3]. The original authors (Dr Belavy and colleagues) have responded [4]. The original NMA paper did not require any changes. We editors of the BJSM have full confidence in the findings of the NMA [2]. The findings of the NMA inform clinical practice and can serve to inform clinical practice guidelines.Karim Khan, MD, PhDEditor-in-Chief, BJSMJuly 27th, 2020 REFERENCES 1 Expression of concern: Which specific modes of exercise training are most effective for treating low back pain? Network meta-analysis. Br J Sports Med 2020;:bjsports-2019-100886eoc1. doi:10.1136/bjsports-2019-100886eoc12 Owen PJ, Miller CT, Mundell NL, et al. Which specific modes of exercise training are most effective for treating low back pain? Network meta-analysis. Br J Sports Med 2019;:in press. doi:10.1136/bjsports-2019-1008863 Maher CG, Hayden JA, Saragiotto BT, et al. 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. Br J Sports Med Published Online First: 5 February 2020. doi:10.1136/bjsports-2019-1018124 Belavy DL, Owen PJ, Miller CT, et al. Response to Discussion: "Which specific modes of exercise training are most effective for treating low back pain? Network meta-analysis." Br J Sports Med Published Online First: 10 June 2020. doi:10.1136/bjsports-2020-102673.