The aim of this study was to investigate the effects on pulmonary ventilation and oxygen uptake ( V . O2) in athletes with a very high maximal oxygen uptake ( V . O2max) and corresponding high ventilation capacity when using a modern metabolic system with relatively high resistance to breathing (HIGHRES), compared to a traditional system with low resistance to breathing (LOWRES). Four rowers and three cross-country skiers (without asthma), competing at a high international level, performed in experimental conditions with LOWRES and HIGHRES using a rowing ergometer and roller skis on a treadmill. The results showed that V . O2, blood lactate, heart rate and respiratory exchange ratio were not different between the LOWRES and HIGHRES test conditions during both submaximal and maximal exercise. Also, the athlete’s time to exhaustion (treadmill) and mean power (rowing ergometer) from maximal tests were no different between the two conditions. However, ventilation and expiratory O2 and CO2 concentrations were different for both submaximal and maximal exercise. Thus, the authors have concluded that the differences in resistance to breathing of metabolic systems influence elite endurance athletes V . E at low to very high workloads, thus affecting the expired gas fractions, but not the submaximal V . O2, V . O2max and performance in a laboratory setting at sea level.

中文翻译：

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代谢系统中的呼吸阻力：对高有氧能力优秀运动员肺通气和摄氧量的影响

本研究的目的是调查在使用具有相对较高阻力的现代代谢系统时，具有非常高的最大摄氧量 (V.O2max) 和相应高通气量的运动员对肺通气和摄氧量 (V.O2) 的影响呼吸 (HIGHRES)，与具有低呼吸阻力 (LOWRES) 的传统系统相比。四名赛艇运动员和三名越野滑雪运动员（无哮喘），在国际高水平比赛中，使用划船测力计和滚轮滑雪板在跑步机上使用 LOWRES 和 HIGHRES 在实验条件下进行。结果表明，V . 在次最大运动和最大运动期间，LOWRES 和 HIGHRES 测试条件之间的 O2、血乳酸、心率和呼吸交换率没有差​​异。还，运动员的疲劳时间（跑步机）和来自最大测试的平均功率（划船测力计）在两种情况下没有差异。然而，次最大运动和最大运动的通气和呼气 O2 和 CO2 浓度是不同的。因此，作者得出结论，代谢系统呼吸阻力的差异会影响精英耐力运动员 V。E 在低到非常高的工作负载下，从而影响呼出气体分数，但不影响次最大 V 。氧气，V。海平面实验室环境中的 O2max 和性能。作者得出结论，代谢系统呼吸阻力的差异会影响精英耐力运动员 V . E 在低到非常高的工作负载下，从而影响呼出气体分数，但不影响次最大 V 。氧气，V。O2max 和海平面实验室环境中的性能。作者得出结论，代谢系统呼吸阻力的差异会影响精英耐力运动员 V . E 在低到非常高的工作负载下，从而影响呼出气体分数，但不影响次最大 V 。氧气，V。O2max 和海平面实验室环境中的性能。