在未名空间的跑步坛看到这个帖子,转过来。
“突然站起来眼前发黑,果然不是一个问题,最新一期的Running Times有篇讲这个,Fit but Faining 说这个叫EAPH (Exercise Associated Postural Hypotension),原因是心率比较低的人,突然站起来的时候,大脑会突然供血不足造成的:
"Sudden sizziness on standing are actually a common side effect of high cardiovascular fitness, especially having a low resting heart rate. Many competitive runners have resting heart rats of 40-50 beats per minute. that's not usually a problem, but it is a cause of EAPH."
另外如果血压也低的话,会加重这个问题. 说大部分跑超马的都有这问题:
"68 percent of ultramarathoners had signifincant drops in blood pressure when rising suddenly from lying down."
说这个EAPH没啥危害,不属于健康问题,就是注意平时多喝水,站起来慢点就好了..
另外一个类似的, 但是更严重的问题是EAC,Exercise Associated Collapse. 这个在比赛中经常见,高速跑动的时候,如果突然停下来,有些人也会眼前发黑,甚至晕倒...所以建议比赛冲刺过线以后要保持继续走动,不要停下来... ”
我自己血压偏低 (60-90),跑步以来现在的静心率在43-52之间,偶有这个问题,由此看来是心血管功能强的标志了?!
No comments:
Post a Comment