RESPONSE TO SUBMAXIMAL AND MAXIMAL EXERCISE AT DIFFERENT LEVELS OF CARBOXYHEMOGLOBIN
RESPONSE TO SUBMAXIMAL AND MAXIMAL EXERCISE AT DIFFERENT LEVELS OF CARBOXYHEMOGLOBIN
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DOI：
10.1111/j.1748-1716.1972.tb05350.x
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发表时间：
1972-01-01
期刊：
影响因子：
--
通讯作者：
HUOT, R
中科院分区：
文献类型：
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作者：
EKBLOM, B;HUOT, R
5名受试者在正常情况下和吸入一氧化碳后分别进行亚极限、极限自行车和极限跑步机运动，测定血液中不同水平的碳氧血红蛋白（COHb）。在极限跑步机运动中，固定负荷下的工作时间和最大摄氧量随COHb水平的增加而减少（r = 0.79和r = 0.85）。血乳酸峰值浓度和肺通气无变化。与对照研究相比，最高测量心率与COHb水平升高同时降低。在次最大工作期间，心率增加，不同水平的COHb摄氧量不变。在低次最大负荷下，血乳酸浓度和氧亏不变，但随着负荷和COHb水平的增加而增加。
Five subjects performed submaximal and maximal bicycle and maximal treadmill exercise in normalcy and after carbon monoxide inhalation, giving different levels of carboxyhemoglobin (COHb) in the blood. During maximal treadmill exercise work time on a fixed work load and maximal oxygen uptake were decreased with increasing level of COHb (r = 0.79 and r = 0.85, respectively). Peak blood lactate concentration and pulmonary ventilation were unchanged. Highest measured heart rate was lower in parallell with the increased COHb level compared to control studies. During submaximal work heart rate was increased and oxygen uptake was unchanged at the various levels of COHb. At low submaximal work loads blood lactate concentrations and oxygen deficit was unchanged but increased as work load and COHb‐level increased.