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KMID : 1129720130300020135
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Korean Journal of Acupuncture
2013 Volume.30 No. 2 p.135 ~ p.142
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EEG Changes due to Low-Frequency Electrical Stimulation to the BL62 and KI6 of Elderly Women
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이상훈:Lee Sang-Hoon
최광호:Choi Kwang-Ho/조성진:Cho Sung-Jin/최선미:Choi Sun-Mi/홍권의:Hong Kwon-Eui/류연희:Ryu Yeon-Hee
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Abstract
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Objectives : This study aimed to investigate the general effects of low-frequency electrical stimulation of the ankle joint acupuncture points(BL62 and KI6) on the brain waves of elderly women as a pilot study to figure out the possibility of candidate non-invasive and non-chemical stimulation method for the enhancing the brain function.
Methods : A randomized, controlled, double-blinded clinical trial was performed in 31 healthy women(mean age, 54.5 years) within a treatment duration of 12 sessions. In the experimental group, low-frequency electrical stimulation was applied using the maximum range of the individual insensible strength(mean current, 0.04?A). The control group received sham stimulation. The background electroencephalographic activity was measured before and after the12 sessions.
Results : After 12 sessions of stimulation, the relative power of the alpha wave increased(32 of 32 channels: significant difference in 11 channels, p＜0.05); the theta(30 of 32 channels: significant difference in 10 channels, p＜0.05), beta(31 of 32 channels), and gamma(30 of 32 channels: significant difference in 7 channels, p＜0.05) powers were also decreased compared with the sham group.
Conclusions : Electrical stimulation on the ankle joint acupuncture points(BL62 and KI6) seemed to stabilize the elderly women brain by inducing the alpha power and reducing beta, theta, and gamma powers. These results provide insight into the action mechanism of the stimualtion and can assist the future developement of a non-invasive and non-chemicaltreatment technique for stressor related cognitive problems.
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KEYWORD
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randomized controlled trial, brainwaves, electrical stimulation, background EEG, BL62, KI6
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