School of Kinesiology, Faculty of Health Sciences, Western University, London, ON, Canada.
Department of Mechanical and Materials Engineering, Faculty of Engineering, Western University, London, ON, Canada; and.
Clin J Sport Med. 2024 May 1;34(3):280-287. doi: 10.1097/JSM.0000000000001202. Epub 2024 Jan 30.
Investigate the effect of cumulative head impacts on saccade latency and errors, measured across two successive football seasons.
Participants were acquired from a sample of convenience-one Canadian university football team. Head impacts were collected during training camp, practices, eight regular season games, and four playoff games in each season. Saccade measurements were collected at five time points-before and after training camp, at midseason, after regular season, and after playoffs.
Two seasons following players from a single USports football team during practices and games.
Players who completed a baseline saccade measurement and a minimum of one follow-up measurement were included in the study. A total of 127 players were monitored across two competitive seasons, including 61 players who participated in both seasons.
Head impact measurements were collected using helmet-mounted sensors.
Saccade latency and number of errors were measured using high-speed video or electro-oculography.
On average, each head impact increased prosaccade latency by 5.16 × 10 -3 ms (95% confidence interval [CI], 2.26 × 10 -4 -1.00 × 10 -2 , P = 0.03) and antisaccade latency by 5.74 × 10 -3 ms (95% CI, 7.18 × 10 -4 -1.06 × 10 -2 , P = 0.02). These latency increases did not decrease between the two seasons; in fact, prosaccade latencies were 23.20 ms longer (95% CI, 19.40-27.14, P < 0.001) at the second season's baseline measurement than the first. The number of saccade errors was not affected by cumulative head impacts.
Repetitive head impacts in Canadian university football result in cumulative declines in brain function as measured by saccade performance.
Football organizations should consider implementing policies focused on reducing head impacts to improve player safety.
研究在两个连续的足球赛季中，累积头部撞击对眼跳潜伏期和错误的影响。
参与者来自加拿大一所大学橄榄球队的便利样本。在训练营、练习、八场常规赛和每赛季的四场季后赛期间收集头部撞击数据。在五个时间点收集眼跳测量值 - 训练营前后、赛季中期、常规赛结束后和季后赛结束后。
在练习和比赛中，两个赛季跟随一支美国大学体育协会橄榄球队的球员。
完成基线眼跳测量和至少一次随访测量的运动员被纳入研究。共有 127 名运动员在两个竞争赛季中受到监测，其中包括 61 名参加两个赛季的运动员。
使用头盔安装的传感器收集头部撞击测量值。
使用高速视频或眼电图测量眼跳潜伏期和错误次数。
平均而言，每次头部撞击使正眼跳潜伏期增加 5.16×10 -3 毫秒（95%置信区间 [CI]，2.26×10 -4 -1.00×10 -2 ，P=0.03），反眼跳潜伏期增加 5.74×10 -3 毫秒（95% CI，7.18×10 -4 -1.06×10 -2 ，P=0.02）。这些潜伏期的增加在两个赛季之间没有减少；事实上，第二个赛季的基线测量值比第一个赛季的正眼跳潜伏期长 23.20 毫秒（95% CI，19.40-27.14，P<0.001）。累积头部撞击并未影响眼跳错误次数。
加拿大大学橄榄球中的重复头部撞击导致眼跳表现测量的脑功能累积下降。
足球组织应考虑实施集中减少头部撞击的政策，以提高运动员的安全性。
