Hue O, Boussana A, Galy O, Le Gallais D, Chamari K, Préfaut C
Laboratoire ACTE, UFR-STAPS Antilles-Guyane, Université Antilles-Guyane, Campus de Fouillole, Pointé à Pitre, France.
J Sports Med Phys Fitness. 2001 Sep;41(3):300-5.
This study was designed to determined the pulmonary responses elicited by multi-cycle-run exercise in triathletes and to compare them to those elicited during a simple cycle-run succession.
Twelve male triathletes underwent three successive laboratory trials: 1) an incremental cycle test, 2) 30 min of cycling followed by 20 min of running (C-R), and 3) five repeated bouts of 6 min of cycling and 4 min of running (X-CR). Before and 10 minutes after the third and fourth trials, the triathletes underwent lung function testing, especially spirometry and diffusing capacity testing for carbon monoxide (DL(CO)). During all trials, ventilatory data were collected every minute using an automated breath-by-breath system.
The results showed that: 1) the cardiorespiratory responses observed during running were greater in the X-CR trial for VE/VCO2 and HR, 2) DL(CO) and DL(CO)/VA were significantly reduced after both trials, and 3) there were no significant changes in pulmonary volumes.
We concluded that 1) the multi-block trial elicited greater cardioventilatory responses than simple the cycle-run succession and 2) multi-block seems a good method to stimulate the specific adaptations required for the cycle-run succession, and particularly for the cycle-run transition. In any case, the efficacy of the multi-block model needs to be more thoroughly evaluated over the course of a longer-term training programme.
本研究旨在确定铁人三项运动员多周期跑步运动引发的肺部反应，并将其与简单的骑行-跑步连续运动引发的反应进行比较。
12名男性铁人三项运动员进行了三项连续的实验室试验：1）递增式骑行测试，2）30分钟骑行后接20分钟跑步（C-R），以及3）五次重复的6分钟骑行和4分钟跑步（X-CR）。在第三次和第四次试验前及试验后10分钟，铁人三项运动员接受肺功能测试，尤其是肺活量测定和一氧化碳弥散量测试（DL(CO)）。在所有试验期间，使用自动逐次呼吸系统每分钟收集通气数据。
结果显示：1）在X-CR试验中，跑步期间观察到的心肺反应在VE/VCO2和心率方面更大，2）两次试验后DL(CO)和DL(CO)/VA均显著降低，3）肺容积无显著变化。
我们得出结论：1）多组试验引发的心肺反应比简单的骑行-跑步连续运动更大，2）多组试验似乎是刺激骑行-跑步连续运动，特别是骑行-跑步转换所需特定适应性的好方法。无论如何，多组试验模型的有效性需要在更长的训练计划过程中进行更全面的评估。
