一、质疑“极点” “极点”是运动员在中长跑项目中所出现的一种特殊生理现象，是早已被人们所熟知的，通常被称为第二次呼吸。它是大强度训练中经常出现的一种项目特征，是生理机能与疲劳之间矛盾的具体表现过程。近几年，许多同行对“极点”的研究和认识不断深入。笔者并经 First, the question “pole” “pole” is a special physiological phenomenon that athletes appear in the middle and long distance running. It has long been well known and is often called the second breath. It is a kind of project characteristic often appearing in intensive training, which is the concrete manifestation of the contradiction between physiological function and fatigue. In recent years, many colleagues have deepened their research and understanding of the “pole.” I and by