Footnotes

• Twitter @jonpatricios, @DrKimHarmon, @DreznerJon

• Contributors JD conceived the format of the paper and initiated a critical review of the paper by JP and KGH. JP reviewed the relevant editorial and pertinent literature and drafted the first version. KGH reviewed the draft and contributed further to its content before JD revised the final iteration.

• Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

• Competing interests JD is editor-in-chief; JP is an editor; and KGH a deputy editor of British Journal of Sports Medicine.

• Provenance and peer review Not commissioned; internally peer reviewed.