生物力学肌肉刺激对一级足球运动员反向纵跳力量和速度的急性影响。

Acute Effect of Biomechanical Muscle Stimulation on the Counter-Movement Vertical Jump Power and Velocity in Division I Football Players.

作者信息

Jacobson Bert H, Monaghan Taylor P, Sellers John H, Conchola Eric C, Pope Zach K, Glass Rob G

机构信息

1Health and Human Performance, School of Applied Health and Educational Psychology, Oklahoma State University, Stillwater, Oklahoma; and2Athletic Department, Oklahoma State University, Stillwater, Oklahoma.

出版信息

J Strength Cond Res. 2017 May;31(5):1259-1264. doi: 10.1519/JSC.0000000000001136.

DOI:10.1519/JSC.0000000000001136

PMID:28415065

Abstract

Jacobson, BH, Monaghan, TP, Sellers, JH, Conchola, EC, Pope, ZK, and Glass, RG. Acute effect of biomechanical muscle stimulation on the counter-movement vertical jump power and velocity in division I football players. J Strength Cond Res 31(5): 1259-1264, 2017-Research regarding whole body vibration (WBV) largely supports such training augmentation in attempts to increase muscle strength and power. However, localized biomechanical vibration has not received the same attention. The purpose of this study was to assess peak and average power before and after acute vibration of selected lower-body sites in division I athletes. Twenty-one subjects were randomly assigned to 1 of 2 conditions using a cross-over design. Pretest consisted of a counter-movement vertical jump (VJ) followed by either localized vibration (30 Hz) to 4 selected lower-body areas or 4 minutes of moderately low-resistance stationary cycling (70 rpm). Vibration consisted of 1 minute bouts at each lower-leg site for a total of 4 minutes followed by an immediate post-test VJ. Repeated measures analysis of variance yielded no significant differences (p > 0.05) in either peak power or peak velocity. Similarly, no significant differences were found for average power and velocity between conditions. It should be noted that, while not significant, the vibration condition demonstrated an increase in peak power and velocity while the bike condition registered slight decreases. Comparing each of the post-VJ repetitions (1, 2, and 3) the vibration condition experienced significantly greater peak power and velocity from VJ 1 to VJ 3 compared with the bike condition which demonstrated no significant differences among the post-test VJs. These results yielded similar, although not statistically significant outcomes to previous studies using WBV. However, the novelty of selected site biomechanical vibration merits further investigation with respect to frequency, magnitude, and duration of vibration.

摘要

雅各布森，BH，莫纳汉，TP，塞勒斯，JH，孔乔拉，EC，波普，ZK，以及格拉斯，RG。生物力学肌肉刺激对一级橄榄球运动员反向运动垂直跳跃功率和速度的急性影响。《力量与体能研究杂志》31(5): 1259 - 1264，2017年——关于全身振动（WBV）的研究在很大程度上支持这种训练增强方式，以试图增加肌肉力量和功率。然而，局部生物力学振动并未受到同样的关注。本研究的目的是评估一级运动员选定下半身部位急性振动前后的峰值功率和平均功率。21名受试者采用交叉设计随机分配到2种条件中的1种。预测试包括一次反向运动垂直跳跃（VJ），随后对4个选定的下半身部位进行局部振动（30赫兹）或进行4分钟的适度低阻力固定自行车运动（70转/分钟）。振动包括在每个小腿部位进行1分钟的振动，共4分钟，然后立即进行测试后VJ。重复测量方差分析结果显示，在峰值功率或峰值速度方面均无显著差异（p>0.05）。同样，在不同条件之间的平均功率和速度方面也未发现显著差异。应当指出的是，虽然不显著，但振动条件下峰值功率和速度有所增加，而自行车运动条件下则略有下降。比较每次测试后VJ（第1次、第2次和第3次），与自行车运动条件相比，振动条件下从VJ 1到VJ 3的峰值功率和速度显著更高，而自行车运动条件下在测试后VJ之间未显示出显著差异。这些结果与之前使用WBV的研究结果相似，尽管在统计学上不显著。然而，选定部位生物力学振动的新颖性在振动频率、幅度和持续时间方面值得进一步研究。