Sirotic Anita C, Coutts Aaron J
School of Leisure, Sport & Tourism, University of Technology, Sydney, Australia.
J Sci Med Sport. 2008 Sep;11(5):500-9. doi: 10.1016/j.jsams.2007.04.008. Epub 2007 Aug 13.
The aim of this study was to determine the reliability of a non-motorised treadmill team-sport simulation for measuring physiological responses and performance demands of team sports. Following familiarisation, 11 team-sport athletes completed a peak sprinting speed assessment followed by a 30-min team-sport simulation on the non-motorised treadmill, on three occasions, 5 days apart. Several performance (total distance, distance covered during each speed category, total work, high-intensity activity, mean maximal sprinting speed and power) and physiological variables (V(O)(2), heart rate and blood measures) were measured. A one-way analysis of variance and ratio limits of agreement were used to compare the results from each trial. Significant differences were established in total sprint distance and high-intensity activity between trials 1-2 and trials 1-3 and 3-s mean maximal sprinting speed for trials 1-3 (p<0.05). No other significant differences were identified. Moderate to high intraclass correlation coefficients (i.e., >0.8) were identified in 11 of the 18 physiological and performance variables measured. Ratio limits of agreement for total distance covered and total work performed during the team-sport simulation were 0.99 (//1.05) and 0.97 (//1.09), respectively. Largest measurement error was shown in post-exercise blood lactate concentration with a coefficient of variation of 17.6%. All other measures showed low coefficients of variation of < or = 10%. These results show that the non-motorised treadmill team-sport simulation provides a reliable tool for assessing and monitoring physiological and performance demands of team-sport activity. We recommend the inclusion of two familiarisation sessions prior to testing.
本研究的目的是确定一种非电动跑步机团队运动模拟在测量团队运动的生理反应和运动表现需求方面的可靠性。在熟悉过程之后，11名团队运动运动员进行了一次冲刺速度峰值评估，随后在非电动跑步机上进行了30分钟的团队运动模拟，共进行三次，每次间隔5天。测量了多个运动表现（总距离、每个速度类别下覆盖的距离、总功、高强度活动、平均最大冲刺速度和功率）和生理变量（V(O)(2)、心率和血液指标）。采用单因素方差分析和一致性比例界限来比较每次试验的结果。在第1-2次试验与第1-3次试验之间的总冲刺距离和高强度活动以及第1-3次试验的3秒平均最大冲刺速度方面存在显著差异（p<0.05）。未发现其他显著差异。在所测量的18个生理和运动表现变量中，有11个的组内相关系数为中度至高（即>0.8）。团队运动模拟期间覆盖的总距离和执行的总功的一致性比例界限分别为0.99（//1.05）和0.97（//1.09）。运动后血乳酸浓度的测量误差最大，变异系数为17.6%。所有其他测量的变异系数均较低，<或=10%。这些结果表明，非电动跑步机团队运动模拟为评估和监测团队运动活动的生理和运动表现需求提供了一种可靠的工具。我们建议在测试前进行两次熟悉训练。
