Department of Sports Science, Swansea City AFC, Swansea, United Kingdom.
Applied Sports Technology Exercise and Medicine Research Center (A-STEM), Swansea University, Swansea, United Kingdom.
J Strength Cond Res. 2019 Feb;33(2):514-522. doi: 10.1519/JSC.0000000000001897.
Jonathan, N, Russell, M, Shearer, D, Cook, CJ, and Kilduff, LP. Predictors of linear and multidirectional acceleration in elite soccer players. J Strength Cond Res 33(2): 514-522, 2019-Linear and multidirectional acceleration underpins success in professional soccer match play. However, the physical qualities that determine these performance indicators are poorly understood in elite players. English Premier League players (n = 26) performed isometric midthigh pulls (IMTPs), bilateral and unilateral drop jumps (from 40 and 20 cm, respectively), bilateral and unilateral countermovement jumps (CMJs), and assessments of linear (5, 10, and 20 m) and multidirectional (left and right preplanned and reactive) acceleration. Regression analyses highlighted that 21% of variance in 5-m sprint time (1.02 ± 0.07 seconds) was explained by relative peak power output (PPO) in bilateral CMJ (54.5 ± 5.3 W·kg). A 5.4 W·kg increase in CMJ predicted a 0.03-second decrease in 5-m sprint time (P = 0.02). For 10-m sprint time (1.72 ± 0.09 seconds), 44% of variance was explained by isometric relative peak force ([PF]; 30.4 ± 4.9 N·kg) and bilateral relative CMJ PPO (54.5 ± 5.3 W·kg). A 5.4 W·kg increase in CMJ predicted reduced 10-m sprint times by 0.04 seconds (P = 0.01). For 20-m sprint time (2.94 ± 0.11 seconds), 55% of the total variance was explained by isometric relative PF (30.4 ± 4.9 N·kg) and relative CMJ PPO (54.5 ± 5.3 W·kg). Increases of 5.4 W·kg in bilateral CMJ predicted an improvement of 20-m sprint time by 0.06 seconds (P = 0.002). Contributions were insignificant (P > 0.05) for preplanned and reactive multidirectional acceleration. Relativized indices, especially those related to force production during CMJ and IMTP tests, likely underpin linear but not multidirectional acceleration performance in professional soccer players. When linear acceleration is a training focus, practitioners should seek to monitor CMJ and IMTP test performance.
乔纳森，N，拉塞尔，M，希勒，D，库克，CJ 和基尔达夫，LP。预测精英足球运动员的线性和多向加速。J 强能力研究 33(2):514-522,2019-线性和多向加速是职业足球比赛成功的基础。然而，在精英运动员中，决定这些表现指标的身体素质还了解甚少。英超联赛球员（n=26）进行等长大腿中部拉力（IMTP）、双侧和单侧跳（分别从 40 和 20 厘米）、双侧和单侧反跳（CMJ）以及线性（5、10 和 20 米）和多向（左和右预先计划和反应）加速评估。回归分析突出表明，5 米冲刺时间（1.02±0.07 秒）的 21%的方差由双侧 CMJ 的相对峰值功率输出（PPO）（54.5±5.3 W·kg）解释。CMJ 增加 5.4 W·kg，5 米冲刺时间减少 0.03 秒（P=0.02）。对于 10 米冲刺时间（1.72±0.09 秒），30.4±4.9 N·kg 的等距相对峰值力和 54.5±5.3 W·kg 的双侧相对 CMJ PPO 解释了 44%的方差。CMJ 增加 5.4 W·kg，可使 10 米冲刺时间减少 0.04 秒（P=0.01）。对于 20 米冲刺时间（2.94±0.11 秒），总方差的 55%由 30.4±4.9 N·kg 的等距相对 PF 和 54.5±5.3 W·kg 的相对 CMJ PPO 解释。双侧 CMJ 增加 5.4 W·kg，可使 20 米冲刺时间提高 0.06 秒（P=0.002）。预先计划和反应性多向加速的贡献较小（P>0.05）。相对化指数，特别是与 CMJ 和 IMTP 测试期间力量产生有关的指数，可能是职业足球运动员线性但不是多向加速表现的基础。当线性加速度是训练重点时，从业者应寻求监测 CMJ 和 IMTP 测试性能。
