Human Performance Laboratory, Arizona State University, Polytechnic, Mesa, Arizona, USA.
J Strength Cond Res. 2010 Nov;24(11):3140-3. doi: 10.1519/JSC.0b013e3181f9278f.
The purpose of this study was to compare the effects of warm-up protocols using either whole-body vibration (WBV) or cycle ergometry (CE) on peak torque at 3 different isokinetic speeds and on fatigue in the knee extension exercise. Twenty-seven recreationally trained (age = 23.59 ± 3.87 years) men (n = 14) and women (n = 13) were tested at 3 different isokinetic speeds (60, 180, 300°·s-1) after either WBV or CE warm-up. The WBV consisted of intermittent bouts of 30 seconds of isometric squats at various degrees of hip and knee flexion for a total of 5 minutes. The CE consisted of 5 minutes of pedaling a cycle ergometer at 65-85% of age-predicted max heart rate. Comparisons between the warm-up conditions were analyzed using repeated measures analysis of variance. For the fatigue comparison, subjects completed 50 continuous concentric knee extensions at 240°·s-1. Means from the first 3 repetitions were compared to means from the final 3 repetitions to establish a fatigue index. Conditions were compared through an independent T-test. No significant (p > 0.05) differences were discovered between warm-up conditions at any speed or on the fatigue index. Means were virtually identical at 60°·s-1 (WBV = 142.14 ± 43.61 ft lb-1; CE = 140.64 ± 42.72 ft lb-1), 180° s-1 (WBV = 93.88 ± 35.18 ft lb-1; CE = 96.36 ± 31.53 ft lb-1), and 300°·s-1 (WBV = 78.36 ± 26.04 ft lb-1; CE = 80.13 ± 26.08), and on fatigue percentage (WBV = 51.14 ± 10.06%; CE = 52.96 ± 9.19%). These data suggest that the more traditional 5-minute cycle ergometer warm-up elicits results comparable to a less common vibration warm-up. The findings of this study are that these modalities are comparable under the tested conditions.
本研究的目的是比较使用全身振动（WBV）或踏车运动（CE）的热身方案对 3 种不同等速速度下的峰值扭矩和膝关节伸展运动疲劳的影响。27 名有经验的（年龄=23.59±3.87 岁）男性（n=14）和女性（n=13）在 3 种不同的等速速度（60、180、300°·s-1）下进行测试，分别接受 WBV 或 CE 热身。WBV 由 30 秒的间歇性等长深蹲组成，髋关节和膝关节的弯曲角度各不相同，总共 5 分钟。CE 由以 65-85%年龄预测最大心率的踏车运动 5 分钟组成。使用重复测量方差分析比较热身条件。对于疲劳比较，受试者以 240°·s-1 完成 50 次连续的向心膝关节伸展。将前 3 次重复的平均值与最后 3 次重复的平均值进行比较，以建立疲劳指数。通过独立 T 检验对条件进行比较。在任何速度或疲劳指数上，都没有发现热身条件之间存在显著差异（p>0.05）。在 60°·s-1 时，均值几乎相同（WBV=142.14±43.61ft lb-1；CE=140.64±42.72ft lb-1），180°s-1 时（WBV=93.88±35.18ft lb-1；CE=96.36±31.53ft lb-1），300°·s-1 时（WBV=78.36±26.04ft lb-1；CE=80.13±26.08ft lb-1），以及疲劳百分比（WBV=51.14±10.06%；CE=52.96±9.19%）。这些数据表明，传统的 5 分钟踏车运动热身与不太常见的振动热身产生的结果相当。本研究的发现是，在测试条件下，这些方法是可比的。
