Table of contents

Original research

• Differences in sport-related concussion for female and male athletes in comparable collegiate sports: a study from the NCAA-DoD Concussion Assessment, Research and Education (CARE) Consortium (21 December, 2020)

  Christina L Master, Barry P Katz, Kristy B Arbogast, Michael A McCrea, Thomas W McAllister, Paul F Pasquina, Michelle Lapradd, Wenxian Zhou, Steven P Broglio
• Unique diagnostic signatures of concussion in the saliva of male athletes: the Study of Concussion in Rugby Union through MicroRNAs (SCRUM) (23 March, 2021)

  Valentina Di Pietro, Patrick O'Halloran, Callum N Watson, Ghazala Begum, Animesh Acharjee, Kamal M Yakoub, Conor Bentley, David J Davies, Paolo Iliceto, Gabriella Candilera, David K Menon, Matthew J Cross, Keith A Stokes, Simon PT Kemp, Antonio Belli
• Prehospital management of exertional heat stroke at sports competitions: International Olympic Committee Adverse Weather Impact Expert Working Group for the Olympic Games Tokyo 2020 (22 April, 2021)

  Yuri Hosokawa, Sebastien Racinais, Takao Akama, David Zideman, Richard Budgett, Douglas J Casa, Stéphane Bermon, Andrew J Grundstein, Yannis P Pitsiladis, Wolfgang Schobersberger, Fumihiro Yamasawa
• Tackler and ball-carrier technique during moderate and severe injuries (≥8 days lost) compared with player-matched and team-matched injury-free controls in Elite Rugby Union (13 July, 2021) Free

  Vincent Meintjes, Pip Forshaw, Steve den Hollander, Lindsay Starling, Michael Ian Lambert, Wayne Viljoen, Clint Readhead, Sharief Hendricks
• Medical encounters at community-based physical activity events (parkrun) in the UK (4 August, 2021)

  Charles R Pedlar, Kyriaki Myrissa, Megan Barry, Iman G Khwaja, Andrew J Simpkin, John Newell, Carl Scarrott, Greg P Whyte, Courtney Kipps, Aaron L Baggish
• Derivation of the Buffalo Concussion Physical Examination risk of delayed recovery (RDR) score to identify children at risk for persistent postconcussive symptoms (11 September, 2021)

  Mohammad Nadir Haider, Adam Cunningham, Scott Darling, Heidi N Suffoletto, Michael S Freitas, Rajiv K Jain, Barry Willer, John J Leddy