The influence of pacing strategy on VO2 and supramaximal kayak performance
The influence of pacing strategy on VO2 and supramaximal kayak performance
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DOI：
10.1097/00005768-200206000-00022
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发表时间：
2002-06-01
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影响因子：
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通讯作者：
Dawson, B
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文献类型：
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作者：
Bishop, D;Bonetti, D;Dawson, B
D.比索普BONETTI和B.道森起搏策略对V（over dot）O-2和超大皮艇性能的影响。医学科学体育锻炼，第34卷，第6期，第100页。1041-1047，2002年。用途：本研究的目的是探讨操纵起搏策略对受过良好训练的划桨运动员的V（过点）O-2和皮艇测力计性能的影响。研究方法：八名训练有素的皮艇划手（500米时间= 115-125秒）首先进行分级运动试验，以确定V（过点）O-2 max和乳酸（La-）参数。在随后的几天里，受试者以随机的、平衡的顺序进行了2分钟的皮艇测力计测试，使用了全力启动或起搏策略。结果如下：与均匀起搏策略相比，使用全力启动策略的峰值功率（747.6 +/- 152.0 vs 558.3 +/- 110.1 W）和平均功率（348.5 +/- 47.6 vs 335.5 +/- 44.8 W）显著更高。然而，两种起搏策略的峰值V（过点）O-2、累积氧不足（AOD）、峰值[La-]或测试后pH值无显著差异。使用全力启动时，总V（过点）O-2显著更高（7.3 +/- 0.8 vs 6.9 +/- 0.8 L）。结论：本研究的结果表明，2分钟皮艇测力计性能显着更大的全面启动策略相比，一个均匀的节奏的策略。改进的性能似乎归因于更快的V（过点）O-2动力学，而总AOD没有显著变化（尽管AOD分布改变）。
D. BISHOP, D. BONETTI, and B. DAWSON. The influence of pacing strategy on V(over dot)O-2 and supramaximal kayak performance. Med. Sci. Sports Exerc., Vol. 34, No. 6, pp. 1041-1047, 2002. Purpose: The purpose of this study was to investigate the effects of manipulating pacing strategy on V(over dot)O-2 and kayak ergometer performance in well-trained paddlers. Methods: Eight well-trained kayak paddlers (500-m time = 115-125 s) first performed a graded exercise test for determination of V(over dot)O-2max and lactate (La-) parameters. On subsequent days and in a random, counterbalanced order, subjects performed a 2-min, kayak ergometer test using either an all-out start or even pacing strategy. Results: There was a significantly greater peak power (747.6 +/- 152.0 vs 558.3 +/- 110.1 W) and average power (348.5 +/- 47.6 vs 335.5 +/- 44.8 W) using the all-out start strategy, when compared with the even-paced strategy. There was however, no significant difference between the two pacing strategies for peak V(over dot)O-2, accumulated oxygen deficit (AOD), peak [La-], or posttest pH. Using the all-out start, total V(over dot)O-2 was significantly greater (7.3 +/- 0.8 vs 6.9 +/- 0.8 L). Conclusion: The results of this study indicate that 2-min kayak ergometer performance is significantly greater following an all-out start strategy when compared with an even-paced strategy. The improved performance appears to be attributable to faster V(over dot)O-2 kinetics, without a significant change in the total AOD (although the AOD distribution was altered).