Department of Nutrition and Health Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska.
Department of Biomechanics, Center for Research in Human Movement Variability, University of Nebraska Omaha, Omaha, Nebraska; and.
J Strength Cond Res. 2020 Apr;34(4):1184-1187. doi: 10.1519/JSC.0000000000002930.
McKay, BD, Miramonti, AA, Gillen, ZM, Leutzinger, TJ, Mendez, AI, Jenkins, NDM, and Cramer, JT. Normative reference values for high school-aged American football players: Proagility drill and 40-yard dash split times. J Strength Cond Res 34(4): 1184-1187, 2020-The purpose of this short report was to provide test- and position-specific normative reference values for the 10- and 20-yd split times (10YD and 20YD) during the 40-yd dash (40YD) as well as 10-yd split times during the proagility drill (PA) based on a large, nationally representative sample of high school-aged American football players in their freshman, sophomore, and junior classes. Cross-sectional performance data were obtained from 12 different high school American football recruiting combines between March 7, 2015, and January 9, 2016, across the United States. The sample included (n = 7,478) high school-aged American football athletes in their freshman (n = 1,185), sophomore (n = 2,514), and junior (n = 3,779) classes. Each player self-classified their American football positions as defensive back, defensive end, defensive linemen, linebacker, offensive linemen (OL), quarterback (QB), running back, tight end, or wide receiver. The results of the freshman, sophomore, and junior class were aggregated to generate test- and position-specific normative values. Mean differences were found among classes for all positions and all measurements (p ≤ 0.05) except for OL and QB PA split time (p > 0.05). Greater percent differences for all 3 variables were observed between freshman and sophomore years than between sophomore and junior years. These normative reference values will be useful for athletes, parents, coaches, and high school strength and conditioning professionals to set realistic goals for young American football athletes.
麦凯、B.D.、米拉蒙蒂、A.A.、吉伦、Z.M.、勒图辛格、T.J.、门德斯、A.I.、詹金斯、N.D.M.和克拉默、J.T.。美国高中美式橄榄球运动员的正常参考值：变向敏捷测试和 40 码冲刺分段时间。J 力量与体能研究 34（4）：1184-1187，2020-本研究的目的是为高中美式橄榄球运动员的 40 码冲刺（40YD）10 码和 20 码分段时间（10YD 和 20YD）以及变向敏捷测试（PA）的 10 码分段时间提供基于大量具有全国代表性的高中美式橄榄球运动员的测试和位置特定的正常参考值，这些运动员分别来自新生、 sophomore 和 junior 年级。2015 年 3 月 7 日至 2016 年 1 月 9 日，在美国的 12 个不同的高中美式橄榄球招募联合活动中获得了横断面表现数据。样本包括（n = 7478）来自新生（n = 1185）、 sophomore（n = 2514）和 junior（n = 3779）年级的高中美式橄榄球运动员。每个运动员自我分类为防守后卫、防守端锋、防守线卫、线卫、进攻线卫（OL）、四分卫（QB）、跑卫、紧身前锋或外接手。新生、 sophomore 和 junior 年级的结果被汇总以生成测试和位置特定的正常价值。除了 OL 和 QB 的 PA 分段时间（p > 0.05）外，所有位置和所有测量结果在所有年级之间都存在差异（p ≤ 0.05）。所有 3 个变量的差异百分比在新生和 sophomore 年级之间比在 sophomore 和 junior 年级之间更大。这些正常参考值将对运动员、家长、教练和高中力量和体能专业人士非常有用，他们可以为年轻的美式橄榄球运动员设定现实的目标。
