在中长跑过程中,有的人会出现砰吸节奏紊乱、频率剧增、深度减小,心跳过快,面色发白,肢体无力,动作速率减慢,头晕恶心,胸部发闷等一系列现象。运动生理学把这些现象称为“极点”。当出现“极点”时,初练中长跑者很想停止活动。假如,这时努力克服上述各种难受现 During the long run, some people may experience a series of phenomena such as rhythm disturbances, rapid increase in frequency, decrease in depth, rapid heartbeat, paleness, weakness in limbs, slowing down of movement speed, dizziness and nausea, . Exercise physiology calls these phenomena “poles.” When the “pole” appears, junior runners want to stop the activity. If, at this time, we will try to overcome all the above uncomfortable conditions