Neuromuscular Physiology Laboratory School of Kinesiology, Applied Health and Recreation Oklahoma State University, Oklahoma State University, Stillwater, Oklahoma.
J Strength Cond Res. 2019 May;33(5):1185-1191. doi: 10.1519/JSC.0000000000003137.
Bayliff, GE, Jacobson, BH, Moghaddam, M, and Estrada, C. Global positioning system monitoring of selected physical demands of NCAA Division I football players during games. J Strength Cond Res 33(5): 1185-1191, 2019-Global positioning system (GPS) tracking of athletes in selected sports is a new innovation into obtaining comprehensive data regarding physical output with respect to distance travelled (DT), acceleration, and change of direction. The purpose of this study was to determine selected physical demands of American football players during the course of games and to compare such data by player position. Offensive lineman (OL) (n = 14) and defensive lineman (DL) (n = 9) and offensive wide receivers (WRs) (n = 10) and defensive backs (DBs) (n = 10) were fitted with GPS monitors during games. Collected data included DT, maximum velocity (MV), and acceleration (AC), deceleration (DC) distance at 2 intensities. Results indicated that DBs travelled significantly (p < 0.05) greater distances than OL and WR, but not DL. For MV, DBs and WRs were not significantly different but were significantly different from OL and DL. Also, DL was significantly different than OL. For the most intense acceleration (3-10 m·s), WR accelerated significantly further than all other positions and DBs accelerated further than DL and OL. There was not significant difference between DL and OL. For deceleration at the high-intensity measure, significant differences existed among all positions. Underestimation of workload during games could be a factor for the overuse and soft-tissue injuries and more serious injuries. Furthermore, using GPS tracking of similar variables as found in this study may benefit coaches and trainers in many other high-intensity sports.
拜利夫、GE、雅各布森、BH、莫加达姆、M 和埃斯特拉达、C. 全美大学生体育协会一级足球运动员比赛中部分身体需求的全球定位系统监测。J 力量与体能研究 33(5):1185-1191,2019-运动员在选定运动中的全球定位系统 (GPS) 跟踪是一项新的创新，可以获得有关距离（DT）、加速度和方向变化的全面身体输出数据。本研究的目的是确定美式足球运动员在比赛过程中的部分身体需求，并按球员位置比较此类数据。进攻线卫（OL）（n = 14）和防守线卫（DL）（n = 9）和进攻外接手（WR）（n = 10）和防守后卫（DB）（n = 10）在比赛中配备了 GPS 监测器。收集的数据包括 DT、最大速度（MV）和加速度（AC），在 2 个强度下的减速（DC）距离。结果表明，与 OL 和 WR 相比，DB 行进的距离明显（p < 0.05）更远，但与 DL 不同。对于 MV，DB 和 WR 没有明显差异，但与 OL 和 DL 有明显差异。此外，DL 与 OL 有明显差异。对于最强的加速度（3-10 m·s），WR 的加速度明显大于所有其他位置，而 DB 的加速度大于 DL 和 OL。DL 和 OL 之间没有显著差异。在高强度测量的减速方面，所有位置之间存在显著差异。在比赛中低估工作量可能是过度使用和软组织损伤以及更严重损伤的一个因素。此外，使用 GPS 跟踪本研究中发现的类似变量可能会使教练和培训师受益于许多其他高强度运动。
