Krustrup Peter, Mohr Magni, Amstrup Tommas, Rysgaard Torben, Johansen Johnny, Steensberg Aadam, Pedersen Preben K, Bangsbo Jens
Institute of Exercise and Sport Sciences, August Krogh Institute, Department of Human Physiology, University of Copenhagen, Denmark.
Med Sci Sports Exerc. 2003 Apr;35(4):697-705. doi: 10.1249/01.MSS.0000058441.94520.32.
To examine the physiological response and reproducibility of the Yo-Yo intermittent recovery test and its application to elite soccer.
Heart rate was measured, and metabolites were determined in blood and muscle biopsies obtained before, during, and after the Yo-Yo test in 17 males. Physiological measurements were also performed during a Yo-Yo retest and an exhaustive incremental treadmill test (ITT). Additionally, 37 male elite soccer players performed two to four seasonal tests, and the results were related to physical performance in matches.
The test-retest CV for the Yo-Yo test was 4.9%. Peak heart rate was similar in ITT and Yo-Yo test (189 +/- 2 vs 187 +/- 2 bpm), whereas peak blood lactate was higher (P < 0.05) in the Yo-Yo test. During the Yo-Yo test, muscle lactate increased eightfold (P < 0.05) and muscle creatine phosphate (CP) and glycogen decreased (P < 0.05) by 51% and 23%, respectively. No significant differences were observed in muscle CP, lactate, pH, or glycogen between 90 and 100% of exhaustion time. During the precompetition period, elite soccer players improved (P < 0.05) Yo-Yo test performance and maximum oxygen uptake ([OV0312]O(2max)) by 25 +/- 6 and 7 +/- 1%, respectively. High-intensity running covered by the players during games was correlated to Yo-Yo test performance (r = 0.71, P < 0.05) but not to [OV0312]O(2max) and ITT performance.
The test had a high reproducibility and sensitivity, allowing for detailed analysis of the physical capacity of athletes in intermittent sports. Specifically, the Yo-Yo intermittent recovery test was a valid measure of fitness performance in soccer. During the test, the aerobic loading approached maximal values, and the anaerobic energy system was highly taxed. Additionally, the study suggests that fatigue during intense intermittent short-term exercise was unrelated to muscle CP, lactate, pH, and glycogen.
研究Yo-Yo间歇恢复测试的生理反应、可重复性及其在精英足球运动中的应用。
对17名男性在Yo-Yo测试前、测试期间和测试后测量心率，并测定血液和肌肉活检样本中的代谢物。在Yo-Yo复测和力竭递增式跑步机测试（ITT）期间也进行了生理测量。此外，37名男性精英足球运动员进行了两到四次赛季测试，结果与比赛中的体能表现相关。
Yo-Yo测试的重测变异系数为4.9%。ITT和Yo-Yo测试中的峰值心率相似（分别为189±2次/分钟和187±2次/分钟），而Yo-Yo测试中的峰值血乳酸更高（P<0.05）。在Yo-Yo测试期间，肌肉乳酸增加了八倍（P<0.05），肌肉磷酸肌酸（CP）和糖原分别减少了51%和23%（P<0.05）。在力竭时间的90%至100%之间，肌肉CP、乳酸、pH值或糖原未观察到显著差异。在赛前阶段，精英足球运动员的Yo-Yo测试表现和最大摄氧量（[OV0312]O₂max）分别提高了25±6%和7±1%（P<0.05）。球员在比赛中进行的高强度跑步与Yo-Yo测试表现相关（r=0.71，P<0.05），但与[OV0312]O₂max和ITT表现无关。
该测试具有高可重复性和敏感性，能够对间歇性运动中运动员的体能进行详细分析。具体而言，Yo-Yo间歇恢复测试是足球运动中体能表现的有效衡量指标。在测试期间，有氧负荷接近最大值，无氧能量系统承受了很大压力。此外，该研究表明，剧烈间歇性短期运动中的疲劳与肌肉CP、乳酸、pH值和糖原无关。
