Korean Journal of Acupuncture

Society for Meridian and Acupoint (경락경혈학회)
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Different Responses to Acupuncture in Electroencephalogram according to Stress Level: A Randomized, Placebo-Controlled, Cross-Over Trial

스트레스 정도에 따라 침 치료가 뇌파(EEG)에 미치는 영향: 무작위배정 플라시보 대조군 교차연구

  • Kim, Song-Yi (Acupuncture and Meridian Science Research Center(AMSRC)) ;
  • Kim, Sang-Woo (Department of Meridian and Acupoint, College of Korean Medicine, Kyung Hee University) ;
  • Park, Hi-Joon (Acupuncture and Meridian Science Research Center(AMSRC))
  • 김송이 (경희대학교 침구경락과학연구센터) ;
  • 김상우 (경희대학교 한의과대학 경혈학교실) ;
  • 박히준 (경희대학교 침구경락과학연구센터)
  • Received : 2014.09.04
  • Accepted : 2014.09.22
  • Published : 2014.09.27
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Abstract

Objectives : The purpose of this randomized, placebo-controlled, cross-over trial was to examine how acupuncture treatment at Shinmun(HT7) affects the brain activity and the autonomic nervous system(ANS), using electroencephalograms(EEG) and heart rate variability(HRV). Methods : Eighteen healthy volunteers participated in two separate experiments: in each experiment, either real acupuncture(RA) or non-penetrating sham acupuncture(SA) was applied at HT7 in random sequences to each person. The EEG and HRV measurements were conducted simultaneously before and during the acupuncture stimulation for 5 minutes, respectively. Resulting EEG and HRV parameters were compared between RA and SA groups. To assess differences according to the stress levels for participants, subgroup analysis was performed based on the results of the stress response index questionnaire. Results : In the results, acupuncture stimulation at HT7 increased ${\alpha}$ band in EEG. In the HRV analysis, heart rate was decreased significantly but HF and RMS-SD were increased in the RA group, compared with those of the SA group. In the subgroup analysis by stress level, participants in the RA group with high stress exhibited an increased in ${\alpha}$ band in their EEG while the low stress participants showed decrease or little increase in the band. For the SA group, ${\alpha}$ band reported relatively moderate changes in all channels. Conclusions : Our results showed that acupuncture induces changes in brain activation and the ANS. Acupuncture was related to the activation of the parasympathetic nervous system. The brain activities of the participants were different depending on the stress level.

목적 : 본 무작위배정 플라시보 대조군 교차연구는 신문혈의 침 치료가 뇌 활성도와 자율신경계에 어떠한 영향을 미치는지 뇌파(EEG)와 심박변이도(HRV)를 통해 알아보고자 한 연구이다. 방법 : 18명의 건강인 피험자가 참여하여 1-3일의 간격을 두고 무작위배정 순서에 따라 신문혈에 진짜침과 가짜침으로 시술받았고, 치료 전, 후에 각각 뇌파와 심박변이도를 측정하였다. 피험자의 스트레스 정도에 따른 반응의 차이를 살펴보기 위하여 스트레스설문지를 이용하여 서브그룹분석을 시행하였다. 결과 : 그 결과, 침 치시술은 뇌파 중 ${\alpha}$밴드 값의 증가를 나타냈으며, 진짜침 그룹의 경우 심박변이도의 결과값 중 HF와 RMS-SD의 증가가 대조군에 비해 유의하게 높았다. 스트레스 정도에 따른 서브그룹 분석에서는 진짜침 그룹 중 스트레스 정도가 높은 피험자는 ${\alpha}$밴드 값이 증가한 반면, 스트레스 정도가 낮은 피험자는 감소하거나 증가의 폭이 낮은 것을 알 수 있었으며, 거짓침 그룹에서는 비교적 적은 변화를 나타내었다. 결론 : 본 연구 결과를 통해 침이 뇌 활성도 및 자율신경계에 영향을 미치며, 이는 부교감신경계통과 관련이 있음을 알 수 있었다. 또한 이러한 결과는 환자의 스트레스 정도에 따라 다른 반응을 나타냄을 보여주었다.

Keywords

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