Prioul Valentin, Slawinski Jean, Guersent Steeve, Lopes Philippe, Leprêtre Pierre-Marie
Univ Rouen Normandie, Normandie Univ, CETAPS UR 3882, Rouen, France.
Fédération Française de Football Américain, Pole de Performance, La-Plaine-Sain-Denis, France.
Front Sports Act Living. 2025 Apr 7;7:1554055. doi: 10.3389/fspor.2025.1554055. eCollection 2025.
Time to perform 40-yard dash (40-yd) is a performance criterion in American football. Sprinting ability is strongly correlated with maximal values of horizontal power (PH), Force (FH) and Velocity (VH). While numerous methods for developing sprint speed exist, few studies have focused on the effects of periodizations on the sprinting mechanical variables in young talented American football players.
this study aimed to compare the effects of block (BP) and undulating (UP) training periodization modalities on 40-yard dash performance.
27 players from the Young French League of American football (17.1 ± 0.9 y, 179.9 ± 5.5 cm, 81.1 ± 14.9 kg) were randomly assigned in either the BP ( = 15) or UP ( = 12) group. Anthropometric characteristics, 40-yd performance, maximal velocity (V), PH, FH and VH were assessed before and after 10-wk intervention period.
Training resulted in the 40-yd performance increase of 3.72% ( < 0.001) and significant changes in V (+ = 6.13 ± 5.62%, < 0.001) and VH values (+2.68 ± 4.14%, = 0.004). BP intervention leaded higher improvements in time to perform 40-yd (4.45 ± 2.06 vs. 3.02 ± 1.93%, < 0.001) and V (7.30 ± 6.63% vs. 4.54 ± 4.10%, = 0.002,) compared to UP. No periodization effect was found in changes of VH (BP: 3.42 ± 4.31% vs. UP: 1.48 ± 3.88, = 0.214).
Our results showed that BP and UP were effective to increase sprint performance. Despite a similar training load, the block periodization of training had better effects on 40-yd performance compared to undulating training periodization in this population of talented young American football players.
40码冲刺跑（40-yd）的用时是美式橄榄球的一项表现标准。短跑能力与水平功率（PH）、力量（FH）和速度（VH）的最大值密切相关。虽然存在多种提高短跑速度的方法，但很少有研究关注周期化训练对年轻有天赋的美式橄榄球运动员短跑力学变量的影响。
本研究旨在比较板块（BP）和波动（UP）训练周期化模式对40码冲刺跑表现的影响。
来自法国美式橄榄球青年联赛的27名运动员（17.1±0.9岁，179.9±5.5厘米，81.1±14.9千克）被随机分为BP组（n = 15）或UP组（n = 12）。在为期10周的干预期前后，评估人体测量特征、40码跑表现、最大速度（V）、PH、FH和VH。
训练使40码跑表现提高了3.72%（P < 0.001），V（+ = 6.13±5.62%，P < 0.001）和VH值（+2.68±4.14%，P = 0.004）有显著变化。与UP组相比，BP组干预使40码跑用时（4.45±2.06%对3.02±1.93%，P < 0.001）和V（7.30±6.63%对4.54±4.10%，P = 0.002）有更高的改善。VH变化未发现周期化训练效应（BP组：3.42±4.31%对UP组：1.48±3.88，P = 0.214）。
我们的结果表明，BP和UP对提高短跑表现均有效。在这群有天赋的年轻美式橄榄球运动员中，尽管训练负荷相似，但与波动训练周期化相比，板块训练周期化对40码跑表现有更好的效果。
