Lee Seungmin, Chae Younbyoung, Kim Seung-Nam, Kim Song-Yi, Park Ji-Yeun, Kwark Young-Rong, Kang O-Seok, Lee Hyejung, Yin Chang Shik, Park Hi-Joon
Acupuncture and Meridian Science Research Center, Kyung Hee University, Seoul 130-701, Korea.
Neurol Res. 2010 Feb;32 Suppl 1:37-42. doi: 10.1179/016164109X12537002793887.
In this study, we investigated the short term effects of acupuncture on autonomic control of blood flow in healthy subjects. We also studied whether deqi (obtaining qi) sensations are correlated with these autonomic hemodynamic changes.
The experiment had a randomized, crossover design. Five healthy volunteers (age: 18-26 years) participated in this study. Acupuncture (2 Hz rotations for 10 seconds to 20 mm deep) was applied either to the acupuncture point SP3 or KI2 for 5 minutes. Non-invasively obtained continuous hemodynamic measurements of ultrasound Dopplerography were recorded at the radial artery before, during and after acupuncture stimulation. Cardiovascular autonomic tone was also recorded using power spectral analysis of heart rate variability. After acupuncture stimulation, the participants completed the acupuncture perception scales to measure the degree of deqi or pain they had experienced.
Acupuncture stimulation to the acupuncture point SP3, when compared to the acupuncture point KI2, decreased the maximum systolic velocity. It also decreased low frequency component and increased high frequency component of heart rate variability, indicating that the decrease in systolic blood flow velocity was due to the increased parasympathetic response. Interestingly, warm, radiating and energetic feeling, which are related to deqi, had close correlations with the decrease in blood flow velocity.
Acupuncture stimulation to the acupuncture point SP3 modulates the autonomic cardiovascular responses by enhancing parasympathetic function, and this may help to understand the therapeutic effects of acupuncture.
在本研究中，我们调查了针刺对健康受试者血流自主控制的短期影响。我们还研究了得气感觉是否与这些自主血流动力学变化相关。
实验采用随机交叉设计。五名健康志愿者（年龄：18 - 26岁）参与了本研究。针刺（以2赫兹频率旋转10秒，进针深度达20毫米）施于三阴交穴或太溪穴5分钟。在针刺刺激前、期间和之后，使用超声多普勒非侵入性地连续记录桡动脉的血流动力学测量值。还通过心率变异性的功率谱分析记录心血管自主神经张力。针刺刺激后，参与者完成针刺感知量表以测量他们所经历的得气或疼痛程度。
与针刺太溪穴相比，针刺三阴交穴可降低最大收缩速度。它还降低了心率变异性的低频成分并增加了高频成分，表明收缩期血流速度的降低是由于副交感神经反应增强所致。有趣的是，与得气相关的温热、放射和精力充沛的感觉与血流速度的降低密切相关。
针刺三阴交穴通过增强副交感神经功能来调节自主心血管反应，这可能有助于理解针刺的治疗效果。
