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首页> 外文期刊>Orthopaedic Journal of Sports Medicine >The Effect of the Number of Carries on Injury Risk and Subsequent Season’s Performance Among Running Backs in the National Football League
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The Effect of the Number of Carries on Injury Risk and Subsequent Season’s Performance Among Running Backs in the National Football League

机译：携带次数对全国足球联赛后卫中受伤风险和随后赛季表现的影响

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Background:In recent years, several studies have correlated pitch count with an increased risk for injury among baseball pitchers. However, no studies have attempted to draw a similar conclusion based on number of carries by running backs (RBs) in football.Purpose:To determine whether there is a correlation between number of carries by RBs in the National Football League (NFL) and risk of injury or worsened performance in the subsequent season.Study Design:Cohort study; Level of evidence, 3.Methods:The ESPN NFL statistics archives were searched from the 2004 through 2014 regular seasons. During each season, data were collected on RBs with 150 to 250 carries (group A) and 300+ carries (group B). The following data were collected for each player and compared between groups: number of carries and mean yards per carry during the regular season of interest and the subsequent season, number of games missed due to injury during the season of interest and the subsequent season, and the specific injuries resulting in missed playing time during the subsequent season. Matched-pair t tests were used to compare changes within each group from one season to the next in terms of number of carries, mean yards per carry, and games missed due to injury.Results:During the seasons studied, a total of 275 RBs were included (group A, 212; group B, 63). In group A, 140 RBs (66%) missed at least 1 game the subsequent season due to injury, compared with 31 RBs (49%) in group B (P = .016). In fact, players in group B missed significantly fewer games due to injury during the season of interest (P < .0001) as well as the subsequent season (P < .01). Mean yards per carry was not significantly different between groups in the preceding season (P = .073) or the subsequent season (P = .24).Conclusion:NFL RBs with a high number of carries are not placed at greater risk of injury or worsened performance during the subsequent season. These RBs may be generally less injury prone compared with other NFL RBs.
机译：背景：近年来，一些研究已将投球次数与棒球投手受伤风险的增加相关联。然而，目前还没有研究试图根据足球后卫的跑位次数（RB）得出类似的结论。目的：确定国家橄榄球联盟（NFL）的跑位次数与风险之间是否存在相关性研究设计：队列研究;证据级别，3。方法：从2004年至2014年常规季节搜索ESPN NFL统计档案。在每个季节中，收集了带有150到250个进位（A组）和300多个进位（B组）的RB数据。为每个球员收集了以下数据，并在组之间进行了比较：在常规赛季及其后一个赛季中，进位次数和每位进位的平均码数;在该赛季及其后赛季中，由于受伤而缺席的比赛数;以及造成下一个赛季错过比赛时间的特殊伤病。配对配对t检验用于比较每个组从一个赛季到下一个赛季的进位次数，每位进位的平均码数以及由于受伤而缺席的比赛的变化。结果：在所研究的季节中，共有275个RB包括在内（A组212; B组63）。 A组中，有140名RB（66％）在下个赛季因受伤缺席了至少1场比赛，而B组则为31名RB（49％）（P = 0.016）。实际上，由于在感兴趣的季节（P <.0001）以及随后的季节（P <.01）受伤，B组的球员错失了少得多的比赛。前一季（P = .073）或后一季（P = .24）的组之间的平均每位携带者的平均码无显着差异。随后一个赛季的表现恶化。与其他NFL RB相比，这些RB通常较不容易受伤。

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