Head Acceleration Events Measured by Instrumented Mouthguards in Elite Australian Football.
Background: The consequences of exposure to head acceleration events (HAEs) in collision sports, including Australian Rules football, are a growing concern. Instrumented mouthguards (iMGs) now enable accurate quantification of HAEs in sport; however, little is known about HAE incidence and mechanism...
| Publicado en: | Sports Medicine - Open Vol. 12; no. 1; pp. 1 - 14 |
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| Autores principales: | , , , , , , , , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Springer Nature
2/16/2026
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=191605985&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 191605985 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 21991170 HLUO jtl: Sports Medicine - Open issn: 21991170 maglogo: N pubinfo: dt: 2/16/2026 vid: 12 iid: 1 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 191605985 191605985 191605985 10.1186/s40798-026-00982-6 191605985 ppf: 1 ppct: 13 formats: tig: atl: Head Acceleration Events Measured by Instrumented Mouthguards in Elite Australian Football. aug: au: Evans, Lauren J. Hickey, James W. Reyes, Jonathan Xie, Becca Gillespie-Jones, Kate Giesler, Lauren P. Shultz, Sandy R. O'Brien, Terence J. Makdissi, Michael Willmott, Catherine Mitra, Biswadev O'Brien, William T. McDonald, Stuart J. affil: https://ror.org/02bfwt286 Department of Neuroscience, School of Translational Medicine, Monash University, 99 Commercial Road, 3004, Melbourne, VIC, Australia sug: subj: Acceleration Head Physiology Athletic Performance Evaluation Mouthguards Athletes, Elite Australian Football Athletes, Male Athletes, Female Sporting Events Predictive Value of Tests Funding Source Australia Human Prospective Studies Nonexperimental Studies Accelerometry Motion Analysis Systems Biomechanics Mann-Whitney U Test Chi Square Test Confidence Intervals Descriptive Statistics Kruskal-Wallis Test Post Hoc Analysis Pearson's Correlation Coefficient Data Analysis Software Comparative Studies False Positive Results Incidence ab: Background: The consequences of exposure to head acceleration events (HAEs) in collision sports, including Australian Rules football, are a growing concern. Instrumented mouthguards (iMGs) now enable accurate quantification of HAEs in sport; however, little is known about HAE incidence and mechanisms in Australian Rules football. We aimed to measure HAEs in elite Australian Rules football players, and evaluate the influence of playing position and match event on the incidence and magnitude of HAEs in men and women. iMG data were collected from Australian Football League (AFL) and AFL Women's (AFLW) players in 2023 utilising the HIT-IQ Nexus Gen III iMG, targeting 500 player-matches per sex. Match footage was synchronised with iMG data for video verification and match play coding. Results: Three hundred and eleven players contributed iMG data in the analyses, including 126 men (median matches per player: 3 (interquartile range [IQR: 2–6]) and 185 women (median: 3 [IQR: 1–4]). Men had a higher mean incidence of HAEs ≥ 8 g per match than women (5.7 [95% confidence interval CI: 5.0–6.4] vs. 3.0 [95% CI: 2.8–3.3]), however the incidence was comparable when adjusted for time (3.6/hour [95% CI: 3.2–4.1] vs. 3.1/hour [95% CI: 2.9–3.4]). Men recorded higher maximum single-impact peak linear acceleration (PLA; median 31 g vs. women: median 22 g; p < 0.001) and peak rotational acceleration (PRA; median 3.0 krad/s² vs. women: 2.4 krad/s²; p < 0.001) per match. Conversely, women experienced greater PRA per impact (median 1.4 krad/s² vs. men: 1.2 krad/s²; p < 0.001), while PLA was similar (men: median 14 g, women: median 13 g; p = 0.330). The leading match events resulting in HAEs were marking contests (1.0/hour) in men and contested ball situations (0.8/hour) in women. HAE incidence and magnitude were generally comparable across playing positions, except for men's rucks, who experienced significantly higher incidence of HAEs (6.5/hour) than forwards (3.6/hour), midfielders (3.2/hour), and defenders (2.7/hour). Conclusions: This study highlights differences in HAE incidence, magnitude, and mechanisms by sex, playing position, and match events in elite-level Australian Rules football. These findings provide insight into impact exposure patterns and may inform targeted skill development and policy adjustments to enhance player safety. Key Points: In elite-level Australian Rules football, men sustained more instrumented mouthguard-measured head acceleration events (HAEs) per match compared to women; however, incidence was similar after adjusting for time played. Men experienced higher maximum single-impact peak linear and rotational accelerations values per match, while women experienced greater peak rotational acceleration per HAE. Men's rucks had a significantly higher incidence of HAEs than defenders, midfielders, and forwards, primarily due to more frequent low-magnitude impacts from ruck and marking contests. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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