Rønnestad Bent R, Falch Gunnar Slettaløkken, Ellefsen Stian
Int J Sports Physiol Perform. 2017 Aug;12(7):964-968. doi: 10.1123/ijspp.2016-0428. Epub 2016 Dec 14.
Postactivation-potentiation exercise with added whole-body vibration (WBV) has been suggested as a potential way to acutely improve sprint performance. In cycling, there are many competitions and situations where sprinting abilities are important.
To investigate the effect of adding WBV to warm-up procedures on subsequent cycle sprint performance.
Eleven well-trained cyclists participated in the study. All cyclists performed a familiarization session before 2 separate test sessions in randomized order. Each session included a standardized warm-up followed by 1 of the following preconditioning exercises: 30 s of half-squats without WBV or 30 s of half-squats with WBV at 40 Hz. A 15-s Wingate sprint was performed 1 min after the preconditioning exercise.
Performing preconditioning exercise with WBV at 40 Hz resulted in superior peak power output compared with preconditioning exercise without WBV (1413 ± 257 W vs 1353 ± 213 W, P = .04) and a tendency toward superior mean power output during a 15-second all-out sprint (850 ± 119 W vs 828 ± 101 W, P = .08). Effect sizes showed a moderate practical effect of WBV vs no WBV on both peak and mean power output.
Preconditioning exercise performed with WBV at 40 Hz seems to have a positive effect on cycling sprint performance in young well-trained cyclists. This suggests that athletes can incorporate body-loaded squats with WBV in preparations to specific sprint training to improve the quality of the sprint training and also to improve sprint performance in relevant competitions.
有人提出，在激活后增强训练中加入全身振动（WBV）可能是一种急性提高短跑成绩的潜在方法。在自行车运动中，有许多比赛和场景，短跑能力很重要。
研究在热身程序中加入WBV对随后自行车短跑成绩的影响。
11名训练有素的自行车运动员参与了该研究。所有运动员在2次单独的测试前按随机顺序进行了一次熟悉训练。每次训练包括标准化热身，然后是以下预激活练习之一：30秒无WBV的半蹲或30秒40赫兹的有WBV的半蹲。预激活练习后1分钟进行15秒的温盖特短跑。
与无WBV的预激活练习相比，40赫兹的有WBV的预激活练习产生了更高的峰值功率输出（1413±257瓦对1353±213瓦，P = 0.04），并且在15秒全力冲刺期间有更高平均功率输出的趋势（850±119瓦对828±101瓦，P = 0.08）。效应量显示WBV与无WBV相比对峰值和平均功率输出均有中等程度的实际影响。
在年轻且训练有素的自行车运动员中，40赫兹的有WBV的预激活练习似乎对自行车短跑成绩有积极影响。这表明运动员可以在特定短跑训练的准备过程中加入有WBV的负重深蹲，以提高短跑训练的质量，并提高相关比赛中的短跑成绩。
