Department of Otorhinolaryngology, Paracelsus Medical University Nuremberg, Nuremberg, Germany.
Department of Trauma Surgery, University Medical Centre Regensburg, Regensburg, Germany.
PLoS One. 2021 Aug 11;16(8):e0255695. doi: 10.1371/journal.pone.0255695. eCollection 2021.
Video analysis is one of the most commonly applied methods for analysing football injuries.
The objective of this study was to assess the accuracy of video analysis for recording head injuries in professional football from official matches in the four highest men's professional football leagues in Germany.
In this cohort study, head injuries detected by means of video analysis of all official matches over one season (2017-18) were compared to head injuries registered with the German statutory accident insurance.
Our video analysis yielded 359 head injuries of 287 players. The comparison of head injuries found in our video analysis to those registered with the accident insurance only yielded a match in 23.1% (n = 83), which presents a rather low verification rate. The verification rates varied between the leagues (7.0-30.8%). All injuries documented in the accident insurance registry were found in the video analysis (100%). The types of head injury most often verified by the accident insurance registry (n = 83) were contusion (43.4%), bone fractures (19.3%) and skin lacerations (18.1%). Only 66 of the 359 head injuries (18.4%) resulted in absence from at least one training session and involved a mean time loss of 18.5 days (1-87 days).
The mismatch between the number of head injuries found in the video analysis and head injuries registered with the accident insurance is an important methodological issue in scientific research. The low verification rate seems to be due to the unclear correlation between injury severity and clinical consequences of head injuries detected by means of video analysis and the failure of football clubs to register minor head injuries with the accident insurance.
视频分析是分析足球损伤最常用的方法之一。
本研究旨在评估德国四个最高级别的男子职业足球联赛中官方比赛中通过视频分析记录职业足球头部损伤的准确性。
在这项队列研究中，通过对一个赛季（2017-18 年）所有官方比赛的视频分析检测到的头部损伤与德国法定事故保险中登记的头部损伤进行了比较。
我们的视频分析得出了 287 名球员的 359 例头部损伤。对我们的视频分析中发现的头部损伤与事故保险中登记的头部损伤进行比较，仅匹配了 23.1%（n=83），验证率相当低。联赛之间的验证率存在差异（7.0-30.8%）。事故保险登记处记录的所有损伤都在视频分析中发现（100%）。通过事故保险登记处最常验证的头部损伤类型（n=83）是挫伤（43.4%）、骨折（19.3%）和皮肤裂伤（18.1%）。只有 359 例头部损伤中的 66 例（18.4%）导致至少一次训练缺席，平均损失时间为 18.5 天（1-87 天）。
在视频分析中发现的头部损伤数量与事故保险中登记的头部损伤数量之间的不匹配是科学研究中的一个重要方法学问题。验证率低似乎是由于视频分析检测到的头部损伤严重程度与临床后果之间的相关性不明确，以及足球俱乐部未能将轻微头部损伤向事故保险登记。
