| 憋气对大学生运动员脑血流速度的影响研究 |
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| 引用本文： | 姚宝元,崔静.憋气对大学生运动员脑血流速度的影响研究[J].吉林体育学院学报,2012(5):74-76. |
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| 作者姓名： | 姚宝元 崔静 |
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| 作者单位： | 湛江师范学院体育系 |
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| 摘 要： | 探讨憋气对脑血流速度的影响。方法：在憋气时及其先前的休息期,对20名正常的大学生运动员用经颅多普勒（TCD）监测其左侧大脑中动脉血流速度的变化.结果：憋气早期脑血流速度显著性增加,憋气中期,脑血流速度显著性减小,憋气后期,脑血流速度有所回升,但仍显著低于基线期测定值。结论：憋气可降低脑血流速度和大脑灌注压。
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| 关 键 词： | 憋气 脑血流速度 经颅多普勒 |
Effect of Expiratory Straining on Cerebral Blood Flow Velocity |
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| Yao Baoyuan,Cui Jing.Effect of Expiratory Straining on Cerebral Blood Flow Velocity[J].Journal of Jilin Institute of Physical Education,2012(5):74-76. |
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| Authors: | Yao Baoyuan Cui Jing |
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| Institution: | (Department of Physical Education,Zhanjiang Normal College,Zhanjiang 524048,Guangdong China) |
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| Abstract: | The paper evalnates the influence of expiratory straining on cerebral blood flow velocity(CBFV).Methods: Simultaneous left transcranial Doppler(TCD)monitoring of CBFV in the middle cerebral arteries(MCAs)was performed in 20 normal college students during expiratory staining and its preceding rest period.Results: CBFV increased significantly during the early part of expiratory straining,CBFV decreased significantly during the middle part of expiratory straining.CBFV rose quite a bit,but still was below the baseline value during the late part of expiratory straining.Conclusion: Expiratory straining can reduce cerebral blood flow velocity and the cerebral perfusion pressure. |
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| Keywords: | expiratory straining cerebral blood flow velocity transcranial doppler |
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