Haker E, Egekvist H, Bjerring P
Department of Physical Therapy, Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
J Auton Nerv Syst. 2000 Feb 14;79(1):52-9. doi: 10.1016/s0165-1838(99)00090-9.
It has been postulated that sensory stimulation (acupuncture) affects the cardiovascular system via the autonomic nervous system. Previously, skin temperature, thermography, plethysmography and blood pressure changes have been used in evaluation of sympathetic nerve activity following acupuncture. By using power spectral analysis, the low frequency and high frequency components of heart rate variability can be calculated reflecting the sympathetic and parasympathetic activity. The purpose of this study was to investigate to what extent acupuncture applied into the thenar muscle and into the cavum concha of the ear induced changes in the sympathetic and/or parasympathetic nervous system in healthy subjects.
Twelve healthy volunteers, six men and six women, mean age 34.4 (range 23-48) participated in three balanced, randomly distributed sessions. At an individual initial visit the 12 volunteers were introduced to the needle sensation by having a needle inserted into the point LI 11. The needle sensation was evoked and the subject was trained to identify the characteristic needle sensation. The introduction was followed by three test sessions.
A short acupuncture needle, (Seirin no 3, ∅0.20x15 mm) was inserted perpendicular into the earpoint, Lu 1, in the left inferior hemi-conchae.
An acupuncture needle (Hwato, ∅0.30x30 mm) was inserted perpendicular into the Hegu point (LI 4) in the middle of the right dorsal thenar muscle.
An acupuncture needle (Hwato, ∅0.30x30 mm) was inserted perpendicular superficially into the skin overlying the Hegu point on the left hand. Results. Stimulation of the ear induced a significant increase in the parasympathetic activity during the stimulation period of 25 min (P<0.05) and during the post-stimulation period of 60 min (P<0.05). No significant changes were observed in either the sympathetic activity, blood pressure or heart rate. Stimulation of the thenar muscle resulted in a significant increase in the sympathetic and the parasympathetic activity during the stimulation period (P<0.01) and during the post-stimulation period (P<0.01 and P<0.001, respectively). A significant decrease in the heart rate frequency (P<0.05) at the end of the post-stimulation period was also demonstrated. The superficial needle insertion into the skin overlaying the right thenar muscle caused a pronounced balanced increase in both the sympathetic and parasympathetic activity during the post stimulation period of 60 min (P<0.01) while no changes were observed during the stimulation period.
It is indicated that sensory stimulation (acupunctura) in healthy persons is associated with changed activity in the sympathetic and parasympathetic nervous system depending on site of stimulation and period of observation.
据推测，感觉刺激（针灸）通过自主神经系统影响心血管系统。此前，皮肤温度、热成像、体积描记法和血压变化已被用于评估针灸后的交感神经活动。通过功率谱分析，可以计算心率变异性的低频和高频成分，以反映交感神经和副交感神经活动。本研究的目的是调查在健康受试者中，针刺鱼际肌和耳甲腔在多大程度上会引起交感神经和/或副交感神经系统的变化。
12名健康志愿者，6名男性和6名女性，平均年龄34.4岁（范围23 - 48岁），参加了三个平衡的、随机分布的疗程。在个体首次就诊时，通过将一根针插入LI 11穴位，让12名志愿者熟悉针刺感觉。诱发针刺感觉并训练受试者识别特征性针刺感觉。之后进行三个测试疗程。
疗程A：将一根短针灸针（Seirin 3号，直径0.20×15毫米）垂直插入左耳甲腔的耳穴Lu 1。
疗程B：将一根针灸针（华佗牌，直径0.30×30毫米）垂直插入右手背鱼际肌中部的合谷穴（LI 4）。
疗程C：将一根针灸针（华佗牌，直径0.30×30毫米）垂直浅刺左手合谷穴上方的皮肤。结果。刺激耳部在25分钟的刺激期（P<0.05）和刺激后60分钟的时间段（P<0.05）内引起副交感神经活动显著增加。交感神经活动、血压或心率均未观察到显著变化。刺激鱼际肌在刺激期（P<0.01）和刺激后时期（分别为P<0.01和P<0.001）导致交感神经和副交感神经活动显著增加。在刺激后时期结束时心率频率也显著降低（P<0.05）。在右手鱼际肌上方皮肤进行浅针穿刺在60分钟的刺激后时期引起交感神经和副交感神经活动均显著且平衡地增加（P<0.01），而在刺激期未观察到变化。
表明在健康人中，感觉刺激（针灸）根据刺激部位和观察时期与交感神经和副交感神经系统活动的改变有关。
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