论文部分内容阅读
用逐级负荷踏车试验对２４例正常人（男１９例，女５例）和１１例心肌缺血患者（男）进行运动心肺功能的测定，结果表明：最大摄氧量、相对最大摄氧量、最大氧脉搏、最大心率、最大通气量受性别、年龄、体力活动影响。心肌缺血患者和正常人的心肺功能指标在静息下与无氧阈时两组无明显差异。而随着运动负荷的增加，当出现无氧阈时，心肌缺血组的摄氧量、相对摄氧量及通气量均低于正常组，两组有显著差异。而在极量负荷时，心肌缺血组的最大摄氧量、相对最大摄氧量、最大氧脉搏和最大通气量均低于正常组，并有显著差异。因此运动负荷试验是临床上评估心肺功能非常有用的方法。
The exercise cardio-pulmonary function of 24 normal subjects (19 males and 5 females) and 11 myocardial ischemic patients (male) were measured by step-by-step treadmill test. The results showed that the maximal oxygen uptake, relative maximal oxygen uptake The amount of maximum oxygen pulse, maximum heart rate, maximum ventilation by gender, age, physical activity. Cardiorespiratory function in patients with myocardial ischemia and normal indicators at rest and without anaerobic threshold no significant difference between the two groups. With the increase of exercise load, the oxygen uptake, relative oxygen uptake and ventilation of myocardial ischemia group were all lower than those of normal group when there was anaerobic threshold. There was significant difference between the two groups. At the time of extreme load, the maximal oxygen uptake, maximal oxygen uptake, maximal oxygen pulse and maximal ventilation of myocardial ischemia group were lower than those of normal group, and there were significant differences. Therefore, exercise stress test is a very useful method to evaluate cardiopulmonary function clinically.