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KMID : 0387420090200010165
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Korean Society of Oriental Neuropsychiatry
2009 Volume.20 No. 1 p.165 ~ p.176
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The Effect of Mental Stress Stimulation and Acupuncture at Shinmun(HT7) on Heart Rate Variability
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Kang Mun-Su
Kim Lak-Hyung
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Abstract
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Objectives: The purpose of this study was to assess the effects of mental stress stimulation and acupucnture applied at HT7 point on heart rate variability (HRV) in normal subjects.
Methods: Thirty seven healthy volunteers participated in this study. The volunteers were randomly allocated into two groups. Both groups performed a mental arithmetic stress test and stroop color-word test for 10 minute. Then, acupuncture needles were inserted on HT7 for the study group and on non-acupucnture point for the control group. HRV was recorded three times at test time and before and after acupuncture stimulation.
Results: After giving mental stress stimulation to both groups, LF and LF/HF ratio were increased and HF was decreased significantly. After giving acupuncture to study group, LF and LF/HF ratio were decreased and HF was increased, but it was not significant. After giving acupuncture to control group, LF and LF/HF ratio were increased and HF was decreased, but it was not significant.
Conclusions: This results show that mental arithmetic stress test and stroop color-word test contribute to activation of the sympathetic nervous system. Acupuncture at HT7 could be relatively useful to decrease sympathetic activity and balance autonomic nervous system for those who are under stress.
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KEYWORD
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Heart rate variability(HRV), Acupuncture, Mental stress, Korean medicine
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