在教学实践中,我发现大多数学生对“中长跑”这项运动感到畏惧,为什么呢?经过调查,大多数学生反映,运动后会出现呕吐、头昏,这只是学生运动后的一点体会。我们知道还有的会出现眼前发黑、面色苍白、脉搏减弱、血压降低、手脚发凉、瞳孔缩小等严重现象。这应引起我们体育教师的重视。一、晕厥现象产生的原因 In teaching practice, I found that most students are afraid of the “long-distance running” movement. Why? After investigation, most of the students reported vomiting and dizziness after exercise. This is only after the students exercise Experience. We know that there will be immediate black, pale, pulse weakening, lower blood pressure, cold hands and feet, miosis and other serious phenomena. This should arouse the attention of our PE teachers. First, the syncope phenomenon