Physiological responses to short-term, high-intensity intermittent rowing exercise

本研究旨在观察大学生赛艇运动员在一次大强度间歇性短时间划船运动中的生理反应，并评价重复性间歇性运动对赛艇运动成绩的影响。在第一个实验中，受试者在5组和8组高强度间歇运动中，VO_2和心率在第四组达到最大水平。然而，高强度间歇运动后5组方案的血乳酸浓度显著低于8组方案（9.0±1.2vs. 11.3±1.6mM，p<0.05），表明8组方案比5组方案更有力，更好地作为赛艇运动员的高强度间歇划船运动。在为期6周的划船训练中，低频组（LF：2次/周）显著提高了他们的划船成绩（Δ3.2±1.9sec/1000 m，Δ8.4±5.5sec/2000 m），而高频组（HF：5次/周）仅在1000米试训中有所改善Bowers进行为期5周的单桨水上训练，训练内容包括高强度划船运动（8组/回合，2次/周）。结果表明，在2000米测功试验中，赛艇运动员的赛艇运动成绩有明显提高，可推荐大强度间歇性测功和水上运动，即最大用力20秒，间歇10秒，8组/次，每周2次，连续6周以上。

This study was designed to observe physiological response during one bout of high-intensity intermittent short time rowing exercise and to evaluate the effect of repeated bouts of the exercise on rowing performance for college oarsmen.The high-intensity, intermittent exercise consisted of either five or eight bouts of 20-sec rowing with the maximal effort of the subjects, and each bout was separated by 10-sec rest. In the first experiment, subjects reached to the maximal level of VO_2 and heart rate at the fourth set during both 5- and 8- sets of high-intensity, intermittent exercises. However, blood lactate concentration after high-intensity, intermittent exercise was significantly lower in the 5-set protocol than in the 8-set protocol (9.0±1.2vs. 11.3±1.6mM, p<0.05), suggesting that the 8-set protocol is much vigorous and better than the 5-set protocol as high-intensity, intermittent rowing exercise for rowers. In the 6-week rowing training, low frequency group (LF: 2 times/week) markedly improved their rowing performance (Δ3.2±1.9sec/1000m, Δ8.4±5.5sec/2000m time trials), whereas high frequency group (HF: 5 times/week) improved only in 1000m trial (Δ4.5±2.3sec).Bowers performed 5-week training regimens by single scull boat on water which consisted of high-intensity rowing exercise(8 sets/bout, 2 times/week). Their rowing performance in the 2000m-time trial on ergometer was significantly improved.These results suggest that high-intensity, intermittent rowing exercise on both ergometer and on water, which consists of 20-sec maximal exertion with 10-sec interval, 8 sets/bout, 2 times/week, more than 6 weeks, could be recommended to the collegiate rowers in order to improve their rowing performance.