Risk of concussion due to head acceleration in rear impact sled tests of passenger automobile seats

Courtney, Amy; Campbell, Ian C.; Courtney, Elijah; Pasquesi, Stephanie A.

doi:10.1080/15389588.2018.1532200

Cited by 6 publications

(1 citation statement)

References 3 publications

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“…To begin, our video verification revealed interquartile ranges associated with direct (5–26 g), indirect (5–18 g) and voluntary (5–12 g) HAE mechanisms (Supplemental Table 2 , see ESM). From the wider literature, HAEs up to 6 g have been reported on roller coasters [ 34 ], up to 10 g have been reported for trampolining [ 35 ], 10–19 g have been reported in women’s artistic gymnastics [ 36 ] and 20–30 g have been reported in automobile testing for rear impact collisions [ 37 ]. The automobile study noted that concussion risk in rear impact collisions of this magnitude was negligible [ 34 ], while recent iMG studies of American Football players identified HAEs associated with diagnosed concussion events that ranged between 40–150 g [ 11 , 38 ].…”

Section: Discussionmentioning

confidence: 99%

Head Acceleration Events in Male Community Rugby Players: An Observational Cohort Study across Four Playing Grades, from Under-13 to Senior Men

Bussey,

Salmon,

Romanchuk

et al. 2023

Sports Med

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Objectives The aim of this study was to examine the cumulative head acceleration event (HAE) exposure in male rugby players from the Under-13 (U13) to senior club level over 4 weeks of matches and training during the 2021 community rugby season. Methods This prospective, observational cohort study involved 328 male rugby players. Players were representative of four playing grades: U13 (N = 60, age 12.5 ± 0.6 years), U15 (N = 100, age 14.8 ± 0.9 years), U19 (N = 78, age 16.9 ± 0.7 years) and Premier senior men (N = 97, age 22.5 ± 3.1 years). HAE exposure was tracked across 48 matches and 113 training sessions. HAEs were recorded using boil-and-bite instrumented mouthguards (iMGs). The study assessed the incidence and prevalence of HAEs by ages, playing positions, and session types (match or training). Results For all age grades, weekly match HAE incidence was highest at lower magnitudes (10–29 g). Proportionally, younger players experienced higher weekly incidence rates during training. The U19 players had 1.36 times the risk of high-magnitude (> 30 g) events during matches, while the U13 players had the lowest risk compared with all other grades. Tackles and rucks accounted for the largest HAE burden during matches, with forwards having 1.67 times the risk of > 30 g HAEs in rucks compared with backs. Conclusions This study provides novel data on head accelerations during rugby matches and training. The findings have important implications for identifying populations at greatest risk of high cumulative and acute head acceleration. Findings may guide training load management and teaching of skill execution in high-risk activities, particularly for younger players who may be exposed to proportionally more contact during training and for older players during matches.

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