Int J Sports Physiol Perform. 2021 Jul 1;16(7):958-964. doi: 10.1123/ijspp.2019-0912. Epub 2021 Feb 24.
(1) To compare various physiological indicators of performance during a 5 × 1500-m incremental kayak test performed on an ergometer and on-water and (2) to analyze the relationships between these indicators and the actual competition performance of elite sprint kayakers, aiming to provide information to coaches for evaluating and planning training on-water.
A total of 14 male and female German elite sprint kayakers performed an incremental test both on an ergometer and on-water. The tissue saturation index of the musculus (m.) biceps brachii, oxygen consumption, ratings of perceived exertion, and levels of blood lactate were measured and compared with actual racing times. In addition, power output was monitored during ergometer testing only.
Oxygen consumption during the fourth (P = .02; d = 0.32) and final (fifth; P < .001; d = 0.32) steps of incremental testing was higher on-water than on the ergometer. The tissue saturation index of the m. biceps brachii was approximately 21% higher at the end of the ergometer test (P = .002; d = 1.14). During the second (P = .01; d = 0.78), third (P = .005; d = 0.93), and fourth stages (P = .005; d = 1.02), the ratings of perceived exertion for ergometer kayaking was higher. During the final step, power output was most closely correlated to 200- (r = .88), 500- (r = .93), and 1000-m (r = .86) racing times (all Ps < .01).
During high-intensity kayaking on an ergometer or on-water, the oxygen consumption and tissue saturation index of the m. biceps brachii differ. Furthermore, at moderate to submaximal intensities, the ratings of perceived exertion were higher for ergometer than for on-water kayaking. Finally, of all parameters assessed, the power output during ergometer kayaking exhibited the strongest correlation with actual racing performance.
(1)比较在测功仪和水上进行的 5×1500 米递增式皮艇测试中各项生理指标的表现,并(2)分析这些指标与精英短距离皮艇运动员实际比赛成绩之间的关系,旨在为教练提供在水上进行评估和训练计划的信息。
共有 14 名德国精英短距离皮艇运动员在测功仪和水上进行了递增式测试。测量并比较了肱二头肌的组织饱和度指数、耗氧量、感知用力等级和血乳酸水平,以及实际比赛时间。此外,仅在测功仪测试中监测功率输出。
水上递增测试的第四(P =.02;d = 0.32)和最后(第五;P <.001;d = 0.32)阶段的耗氧量高于测功仪。肱二头肌的组织饱和度指数在测功仪测试结束时高出约 21%(P =.002;d = 1.14)。在第二(P =.01;d = 0.78)、第三(P =.005;d = 0.93)和第四阶段(P =.005;d = 1.02),测功仪皮艇的感知用力等级更高。在最后一步,功率输出与 200 米(r =.88)、500 米(r =.93)和 1000 米(r =.86)比赛时间的相关性最强(均 P <.01)。
在测功仪或水上进行高强度皮艇运动时,肱二头肌的耗氧量和组织饱和度指数不同。此外,在中等至亚最大强度下,测功仪皮艇的感知用力等级高于水上皮艇。最后,在评估的所有参数中,测功仪皮艇的功率输出与实际比赛成绩的相关性最强。