PDF(Pubmed)
Abstract：
UNASSIGNED: Hamstring strains are common among elite athletes, but their effect on return to the same level of play in American football has been incompletely characterized.
UNASSIGNED: Data on National Collegiate Athletics Association Division I college football players with acute hamstring strains were gathered to identify the effects these injuries have on both return to play and athletic performance regarding velocity, workload, and acceleration.
UNASSIGNED: Case Series; Level of evidence, 4.
UNASSIGNED: Injury data for a single Division I football team were prospectively recorded over a 4-year period. Players wore global navigation satellite system and local positioning system (GNSS/LPS) devices to record movement data in practices and games. The practice and game data were cross-referenced to evaluate players with isolated acute hamstring strains. Comparisons were made regarding players\' pre- and postinjury ability to maintain high velocity (>12 mph [19.3 kph]), maximal velocity, triaxial acceleration, and inertial movement analysis (IMA). There were 58 hamstring injuries in 44 players, of which 25 injuries from 20 players had GNSS/LPS data.
UNASSIGNED: Players were able to return to play from all 25 injury incidences at a mean of 9.2 days. At the final mean follow-up of 425 days, only 4 players had reached preinjury function in all measurements; 12 players were able to return in 2 of the 4 metrics; and only 8 players reached their preinjury ability to maintain high velocity. For those who did not achieve this metric, there was a significant difference between pre- and postinjury values (722 vs 442 m; P = .016). A total of 14 players were able to regain their IMA. Players who returned to prior velocity or acceleration metrics did so at a mean of 163 days across all metrics.
UNASSIGNED: While players may be able to return to play after hamstring strain, many players do not reach preinjury levels of acceleration or velocity, even after 13.5 months. Further studies are needed to confirm these findings, assess clinical relevance on imaging performance, and improve hamstring injury prevention and rehabilitation.
UNASSIGNED: Data on National Collegiate Athletics Association Division I college football players with acute hamstring strains were gathered to identify the effects these injuries have on both return to play and athletic performance regarding velocity, workload, and acceleration.
UNASSIGNED: Case Series; Level of evidence, 4.
UNASSIGNED: Injury data for a single Division I football team were prospectively recorded over a 4-year period. Players wore global navigation satellite system and local positioning system (GNSS/LPS) devices to record movement data in practices and games. The practice and game data were cross-referenced to evaluate players with isolated acute hamstring strains. Comparisons were made regarding players\' pre- and postinjury ability to maintain high velocity (>12 mph [19.3 kph]), maximal velocity, triaxial acceleration, and inertial movement analysis (IMA). There were 58 hamstring injuries in 44 players, of which 25 injuries from 20 players had GNSS/LPS data.
UNASSIGNED: Players were able to return to play from all 25 injury incidences at a mean of 9.2 days. At the final mean follow-up of 425 days, only 4 players had reached preinjury function in all measurements; 12 players were able to return in 2 of the 4 metrics; and only 8 players reached their preinjury ability to maintain high velocity. For those who did not achieve this metric, there was a significant difference between pre- and postinjury values (722 vs 442 m; P = .016). A total of 14 players were able to regain their IMA. Players who returned to prior velocity or acceleration metrics did so at a mean of 163 days across all metrics.
UNASSIGNED: While players may be able to return to play after hamstring strain, many players do not reach preinjury levels of acceleration or velocity, even after 13.5 months. Further studies are needed to confirm these findings, assess clinical relevance on imaging performance, and improve hamstring injury prevention and rehabilitation.
摘要：
■腿筋在精英运动员中很常见，但是他们对回归到美式足球相同水平的影响还没有完全表征。
■收集了有关美国大学体育协会I类急性腿筋拉伤的大学橄榄球运动员的数据，以确定这些伤害对恢复比赛和运动表现有关速度的影响，工作量,和加速度。
■案例系列；证据级别，4.
■在4年内前瞻性地记录了一个I类足球队的伤害数据。玩家佩戴全球导航卫星系统和本地定位系统（GNSS/LPS）设备来记录练习和游戏中的运动数据。交叉引用了练习和比赛数据，以评估具有孤立的急性腿筋拉伤的球员。对球员伤前和伤后保持高速(>12mph[19.3kph])的能力进行了比较，最大速度,三轴加速度,和惯性运动分析(IMA)。44名球员中有58名腿筋受伤，其中20名球员的25名受伤人员有GNSS/LPS数据。
■玩家能够在平均9.2天的时间内从所有25起受伤事件中恢复比赛。在425天的最终平均随访中，在所有测量中，只有4名球员达到了受伤前的功能；12名球员能够在4个指标中的2个中返回；只有8名球员达到了保持高速度的受伤前能力。对于那些没有达到这个指标的人，伤前值和伤后值之间存在显着差异（722vs442m；P=.016）。共有14名玩家能够重新获得他们的IMA。返回到先前速度或加速度指标的玩家在所有指标中平均为163天。
■虽然球员可以在腿筋拉伤后恢复比赛，许多球员没有达到受伤前的加速度或速度水平，即使在13.5个月后。需要进一步的研究来证实这些发现，评估影像学表现的临床相关性，提高腿筋损伤的预防和康复。
■收集了有关美国大学体育协会I类急性腿筋拉伤的大学橄榄球运动员的数据，以确定这些伤害对恢复比赛和运动表现有关速度的影响，工作量,和加速度。
■案例系列；证据级别，4.
■在4年内前瞻性地记录了一个I类足球队的伤害数据。玩家佩戴全球导航卫星系统和本地定位系统（GNSS/LPS）设备来记录练习和游戏中的运动数据。交叉引用了练习和比赛数据，以评估具有孤立的急性腿筋拉伤的球员。对球员伤前和伤后保持高速(>12mph[19.3kph])的能力进行了比较，最大速度,三轴加速度,和惯性运动分析(IMA)。44名球员中有58名腿筋受伤，其中20名球员的25名受伤人员有GNSS/LPS数据。
■玩家能够在平均9.2天的时间内从所有25起受伤事件中恢复比赛。在425天的最终平均随访中，在所有测量中，只有4名球员达到了受伤前的功能；12名球员能够在4个指标中的2个中返回；只有8名球员达到了保持高速度的受伤前能力。对于那些没有达到这个指标的人，伤前值和伤后值之间存在显着差异（722vs442m；P=.016）。共有14名玩家能够重新获得他们的IMA。返回到先前速度或加速度指标的玩家在所有指标中平均为163天。
■虽然球员可以在腿筋拉伤后恢复比赛，许多球员没有达到受伤前的加速度或速度水平，即使在13.5个月后。需要进一步的研究来证实这些发现，评估影像学表现的临床相关性，提高腿筋损伤的预防和康复。
