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Reliability and Validity of a 20-s Alternative to the Wingate Anaerobic Test in Team Sport Male Athletes

机译：团队运动男运动员Wingate无氧测试20替代方法的可靠性和有效性

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The intent of this study was to evaluate relative and absolute reliability of the 20-s anaerobic test (WAnT20) versus the WAnT30 and to verify how far the various indices of the 30-s Wingate anaerobic test (WAnT30) could be predicted from the WAnT20 data in male athletes. The participants were Exercise Science majors (age: 21.5±1.6 yrs, stature: 0.183±0.08 m, body mass: 81.2±10.9 kg) who participated regularly in team sports. In Phase I, 41 participants performed duplicate WAnT20 and WAnT30 tests to assess reliability. In Phase II, 31 participants performed one trial each of the WAnT20 and WAnT30 to determine the ability of the WAnT20 to predict components of the WAnT30. In Phase III, 31 participants were used to cross-validate the prediction equations developed in Phase II. Respective intra-class correlation coefficients (ICC) for peak power output (PPO) (ICC = 0.98 and 0.95) and mean power output (MPO) (ICC 0.98 and 0.90) did not differ significantly between WAnT20 and WAnT30. ICCs for minimal power output (POmin) and fatigue index (FI) were poor for both tests (range 0.53 to 0.76). Standard errors of the means (SEM) for PPO and MPO were less than their smallest worthwhile changes (SWC) in both tests; however, POmin and FI values were “marginal,” with SEM values greater than their respective SWCs for both tests values. Stepwise regression analysis showed that MPO had the highest coefficient of predictability (R = 0.97), with POmin and FI considerable lower (R = 0.71 and 0.41 respectively). Cross-validation showed insignificant bias with limits of agreement of 0.99±1.04, 6.5±92.7 W, and 1.6±9.8% between measured and predicted MPO, POmin, and FI, respectively. WAnT20 offers a reliable and valid test of leg anaerobic power in male athletes and could replace the classic WAnT30.
机译：这项研究的目的是评估20s厌氧测试（WAnT20）与WAnT30的相对和绝对可靠性，并验证可以从WAnT20预测30s Wingate厌氧测试（WAnT30）的各种指标有多远男性运动员的数据。参与者是运动科学专业的学生（年龄：21.5±1.6岁，身材：0.183±0.08 m，体重：81.2±10.9 kg），他们定期参加团队运动。在第一阶段，有41位参与者进行了重复的WAnT20和WAnT30测试以评估可靠性。在第二阶段中，有31名参与者分别对WAnT20和WAnT30进行了一项试验，以确定WAnT20预测WAnT30组件的能力。在阶段III中，使用31名参与者对阶段II中开发的预测方程式进行交叉验证。 WAnT20和WAnT30之间的峰值功率输出（PPO）（ICC = 0.98和0.95）和平均功率输出（MPO）（ICC 0.98和0.90）的各自类内相关系数（ICC）均无显着差异。两种测试的最小输出功率（POmin）和疲劳指数（FI）的ICC都很差（范围为0.53至0.76）。在两个测试中，PPO和MPO的平均值标准误差（SEM）均小于其最小的有意义的变化（SWC）；但是，两个测试值的POmin和FI值均为“边际”，SEM值大于各自的SWC。逐步回归分析表明，MPO的可预测性系数最高（R = 0.97），POmin和FI则较低（R = 0.71和0.41）。交叉验证显示，在测得的MPO，预测的POM和预测的POmin和FI之间的一致性极限为0.99±1.04、6.5±92.7 W和1.6±9.8％。 WAnT 20 对男性运动员的腿部厌氧能力进行了可靠且有效的测试，可以替代经典的WAnT 30 。

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