Department of Orthopaedic Surgery, Henry Ford Health System, Detroit, Michigan, USA.
Wayne State University School of Medicine, Detroit, Michigan, USA.
Am J Sports Med. 2019 Sep;47(11):2717-2722. doi: 10.1177/0363546519864581. Epub 2019 Aug 6.
Concussion injuries are common in professional football players; however, their effect on player performance remains unclear.
To quantify the effect of concussions on the performance of running backs and wide receivers in professional football players.
Cohort study; Level of evidence, 3.
Concussion data from the National Football League were collected for a period of 4 seasons (2012-2015) for running backs and wide receivers. Age, experience, position, time to return to play, yearly total yards, and touchdowns were recorded. A power rating (total yards divided by 10 plus touchdowns multiplied by 6) was calculated for each player's injury season as well as for the 3 seasons before and after their respective injury. A control group of running backs and wide receivers without an identified concussion injury who competed in the 2012 season was assembled for comparison. Player performance up to 3 seasons before and after the injury season was examined to assess acute and longitudinal changes in player performance.
A total of 38 eligible running backs and wide receivers sustained a concussion during the study period. Thirty-four (89%) players were able to return to competition in the same season, missing an average of 1.5 ± 0.9 games; the remaining 4 players returned in the subsequent season. Power ratings for concussed players were similar to those of controls throughout the study period. Concussed players did not suffer an individual performance decline upon returning within the same season. Furthermore, no significant difference in change of power rating was observed in concussed players in the acute (±1 year from injury; -1.2 ± 4.8 vs -1.1 ± 3.9, = .199) or chronic (±3 years from injury; -3.6 ± 8.0 vs -3.0 ± 4.5, = .219) setting compared with controls. All concussed players successfully returned to competition in either the index or next season.
A high rate of National Football League running backs and wide receivers are able to return to play after a concussion injury. These players were found to perform at a similar level in both the acute and long-term period after concussion.
脑震荡损伤在职业足球运动员中很常见，但它们对运动员表现的影响仍不清楚。
量化脑震荡对职业足球运动员中跑卫和外接手表现的影响。
队列研究；证据水平，3 级。
收集了美国国家橄榄球联盟（NFL）在 4 个赛季（2012-2015 年）期间跑卫和外接手的脑震荡数据。记录了年龄、经验、位置、重返赛场时间、每年总码数和达阵次数。为每位球员受伤赛季以及受伤前后的 3 个赛季计算了一个功率评分（总码数除以 10 加上达阵次数乘以 6）。为了比较，还组建了一个在 2012 赛季没有被确定脑震荡损伤的跑卫和外接手的对照组。检查了受伤前和受伤后 3 个赛季的球员表现，以评估球员表现的急性和纵向变化。
在研究期间，共有 38 名符合条件的跑卫和外接手发生脑震荡。34 名（89%）球员能够在同一赛季重返赛场，平均缺席 1.5±0.9 场比赛；其余 4 名球员在随后的赛季中复出。在整个研究期间，脑震荡球员的功率评分与对照组相似。脑震荡球员在同一赛季复出时并没有出现个人表现下降。此外，在急性（受伤后 1 年±；-1.2±4.8 与-1.1±3.9，=0.199）或慢性（受伤后 3 年±；-3.6±8.0 与-3.0±4.5，=0.219）期，脑震荡球员的功率评分变化与对照组相比没有显著差异。所有脑震荡球员都成功地在指数或下一个赛季重返赛场。
NFL 中有很大比例的跑卫和外接手在脑震荡损伤后能够重返赛场。这些球员在脑震荡后的急性和长期阶段表现相似。
