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KMID : 1129720120290040634
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Korean Journal of Acupuncture
2012 Volume.29 No. 4 p.634 ~ p.642
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Effects of Acupuncture on the Muscle Fatigue Recovery in Different Diameters of Needle
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Hwang Yo-Sun
Park Chin-Su
Koo Sung-Tae
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Abstract
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Objectives : The aim of the study is to find out whether effect of acupuncture is depending on the diameter of needle, which is a possible component of dose of acupuncture needling. Methods : To compare acupuncture effects in different diameters of needle, we measured the changes in muscle fatigue recovery using surface electromyogram(sEMG) in healthy 8 volunteers. Muscle fatigue was induced by 20 times sit-up for 1 min. Immediately after induction of muscle fatigue, acupuncture needle was inserted into ST36 or ST25 for 10 min by diameters of 0.20 mm, 0.30 mm, or 0.40 mm needles. The sEMG recording was followed by acupuncture for 30 min. As a control group, sEMG was recorded for the same period at rest after muscle fatigue induction. Results : In both of ST 36 and ST 25, stimulation with 0.4 mm diameter needle showed significant rapid recovery followed by short period of muscle fatigue increase. Stimulation with 0.2 mm diameter significantly suppressed the increase of muscle fatigue. Conclusions : These data suggest that acupuncture effect is, at least in part, dependent on diameter of needle. Therefore, diameter of needle is also considered to achieve effective outcome of acupuncture.
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KEYWORD
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surface electromyogram(sEMG), muscle fatigue, acupuncture, diameter of acupuncture needle, ST25, ST36
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