CAJ | 학술논문

为探讨久蹲（5min）后以较快和缓慢2种不同速度站立对脑血流速度的影响，应用CBS—Ⅱ经颅多普勒诊断系统，分别在久蹲（5min）后即刻、久蹲后较快（1S）站立和久蹲后缓慢（3S）站立，即刻检测了20名男女受试者大脑中动脉的平均血流速度（MCAVmean）。结果：久蹲后较快站立MCAVmean由（49．67±5．36）cm·s^-1下降至（32．67±5．27）cm·s^-1（P〈0．01），下降了34．23％；久蹲后缓慢站立MCAVmean由（49．32±5．62）cm·s^-1下降至（42．84±5．56）cm·s^-1（P〈0．05），下降了14．01％。结果说明久蹲后较快和缓慢站立都能引起脑血流速度下降，但较快站立脑血流速度下降的辐度大于缓慢站立脑血流速度下降的幅度。
위탐토구준（5min）후이교쾌화완만2충불동속도참립대뇌혈류속도적영향，응용CBS—Ⅱ경로다보륵진단계통，분별재구준（5min）후즉각、구준후교쾌（1S）참립화구준후완만（3S）참립，즉각검측료20명남녀수시자대뇌중동맥적평균혈류속도（MCAVmean）。결과：구준후교쾌참립MCAVmean유（49．67±5．36）cm·s^-1하강지（32．67±5．27）cm·s^-1（P〈0．01），하강료34．23％；구준후완만참립MCAVmean유（49．32±5．62）cm·s^-1하강지（42．84±5．56）cm·s^-1（P〈0．05），하강료14．01％。결과설명구준후교쾌화완만참립도능인기뇌혈류속도하강，단교쾌참립뇌혈류속도하강적복도대우완만참립뇌혈류속도하강적폭도。
The purpose of this article is to probe into the effect of standing up at two different speeds （quickly and slowly） after long squat （for 5 min） on cerebral blood flow velocity. The authors used the CBS-Ⅱ trans-cranial Doppler diagnosis system to measure the mean blood flow velocity of artery in the brains （MCAVmean） of 20 male and female testees immediately after they had respectively conducted long squat （for 5 min）, stood up quickly （in 1 s） after long squat, and stood up slowly （in 3 s） after long squat, and revealed the following findings： The MCAVmean of the testees standing up quickly after long squat dropped by 34.23%, changing from （49.67±5.36）cm·s^-1 to （32.67±5.27）cm·s^-1 （P〈0.01）; the MCAVmean of the testees standing up slowly after long squat dropped by 14.01%, changing from（49.32±5.62）cm·s^-1 to （42.84±5.56）cm·s^-1 （P〈0.05）, which indicate that standing up quickly and slowly after long squat can all cause drop of cerebral blood flow velocity, but the amplitude of drop of cerebral blood flow velocity caused by standing up quickly is greater than that caused by standing up slowly.