Footnotes

• Twitter @janesthornton, @jonpatricios, @JoanneLKemp, @larsengebretsen, @DreznerJon

• Contributors JST and JD developed the editorial idea. JST composed the initial draft. All authors contributed to further content development, writing and final approval of the manuscript.

• 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, and JST, JD, JP and LE are Editors for BJSM. LE is Head of Medical Sciences at the IOC.

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