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500 BO04 – Down three: video-suspected injuries in youth tackle football following a reduction in number of players on-field
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500 BO04 – Down three: video-suspected injuries in youth tackle football following a reduction in number of players on-field
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Journal Article
500 BO04 – Down three: video-suspected injuries in youth tackle football following a reduction in number of players on-field
2024
Overview
Musculoskeletal (MSK) injuries and concussions (SRC) are of concern in tackle football, and youth are understudied compared to elite athletes. Policy change is of interest as a means to improve player safety. A reduction in number of players on-field may reduce the number of collisions and subsequently injuries within this population, potentially aiding in future injury prevention strategies.To compare video-suspected (VS) concussion and non-concussion injury rates in a modified 9-on-9 13–15 years old Canadian football season to a traditional 12-on-12 season using video-analysis.Prospective cohortYouth tackle football (Calgary, Canada).Football players aged 13–15 years included 384 players (n=18 teams) participating in 2020 and 500 players (n=12 teams) in 2022. Video data were anonymized.In 2020, in accordance with provincial COVID-19 cohort restrictions, there was a reduction in the number of on-field players (9-on-9) and field-dimensions (150x50 yards). The 2021 season returned to 12-on-12 with field dimensions of 150x65 yards. Independent variables included cohort (9-on-9, 12-on-12) and team unit (offense, defense, kicking team, receiving team). Twenty regular season games (10 in each season) were analyzed.Using previously validated criteria, VS-concussion and non-concussion injuries were identified via Dartfish video software. Using negative binomial regression, VS injury rates (/100 player-plays and/10 gameplay-minutes) and incidence rate ratios (IRR) with 95% confidence intervals were estimated to examine differences between years.In total, 10 VS-concussions and 40 VS non-concussion injuries were identified. No significant differences were identified between 2020 and 2021 seasons for VS concussions [IRRPlays (offense): 0.38; 95% CI: 0.08, 1.85] nor non-concussions [IRRPlays (offense): 0.61; 95% CI: 0.27, 1.38]. No injury or concussion rate differences were identified with a reduced number of players on a smaller field. Future research may benefit from combining video-analysis with injury surveillance and accelerometry data to improve prevention efforts.
Publisher
BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine,BMJ Publishing Group LTD
Subject
