van Someren K A, Oliver J E
School of Life Sciences, Kingston University, England.
Int J Sports Med. 2002 Jan;23(1):28-32. doi: 10.1055/s-2002-19268.
The aim of this study was to investigate the use of incremental ergometry determined heart rate training intensities for the control of kayak ergometer and open water kayak training. Eight well-trained male kayakers completed a maximal incremental exercise test on an air-braked kayak ergometer for the determination of LT(1) (the power output at which blood lactate concentration increased by > or = 1 mmol x L(-1)), the associated heart rate (HR-LT(1)), VO(2)peak, maximal heart rate and maximal aerobic power. Subjects then performed 20 min trials of kayak ergometry (E), open water kayaking in a single kayak (K1) and open water kayaking in a four-seat kayak (K4) at HR-LT(1). During the three trials, heart rate was continuously measured, and blood lactate concentration, rating of perceived exertion (RPE) and stroke rate were determined every 5 min. In all trials, exercise at HR-LT(1) resulted in stable blood lactate concentrations and a stable RPE. Comparison of the three trials demonstrated that the only difference was for RPE, which was lower in (K4) than in (E), (p < 0.05). The results demonstrate that the prescription of HR-LT(1) elicits similar blood lactate concentrations during kayak ergometer and open water kayak training in both single and team boats.
本研究的目的是调查使用递增式测力计测定的心率训练强度来控制皮划艇测力计训练和公开水域皮划艇训练。八名训练有素的男性皮划艇运动员在配备空气制动器的皮划艇测力计上完成了一次最大递增运动测试，以确定LT(1)（血乳酸浓度增加≥1 mmol x L(-1)时的功率输出）、相关心率（HR-LT(1)）、VO(2)峰值、最大心率和最大有氧功率。然后，受试者在HR-LT(1)下进行了20分钟的皮划艇测力计训练（E）、单人公开水域皮划艇训练（K1）和四人座皮划艇公开水域皮划艇训练（K4）。在这三项训练期间，持续测量心率，并每5分钟测定一次血乳酸浓度、主观用力程度分级（RPE）和划桨频率。在所有训练中，在HR-LT(1)下进行运动导致血乳酸浓度稳定且RPE稳定。三项训练的比较表明，唯一的差异在于RPE，（K4）中的RPE低于（E）中的RPE，（p < 0.05）。结果表明，在皮划艇测力计训练以及单人艇和团队艇的公开水域皮划艇训练中，HR-LT(1)的训练方案会引发相似的血乳酸浓度。
