Footnotes

• Funding This work was funded by a National Health and Medical Research Council (NHMRC) Partnership Project grant (ID: 565907) which included additional support (both in cash and kind) from the following project partner agencies: the Australian Football League; Victorian Health Promotion Foundation; New South Wales Sporting Injuries Committee; JLT Sport, a division of Jardine Lloyd Thompson Australia Pty Ltd; Department of Planning and Community Development—Sport and Recreation Victoria Division; and Sports Medicine Australia—National and Victorian Branches. Caroline Finch was supported by a NHMRC Principal Research Fellowship (ID: 565900). AD was supported by a Monash Research Accelerator grant from Monash University.

• Competing interests None.

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