"청운(淸雲)"의 훈법(熏法)이 심박변이도(HRV)에 미치는 영향

Objectives : This study aims to assess the effects of incense smokes of ``Cheung-Woon``(consists of several kind of herbal powder) on autonomic nervous system activity and attention in healthy individuals. Methods : A total of 48 healthy volunteers participated in this study. The volunteers were examined with heart rate variability (HRV) before and after incense smokes inhalation of ``Cheung-Woon``. HRV measured the mean RR, mean HR, SDNN, VLF, LF, HF, TP, norm LF, norm HF, and LF/HF ratio. ``Cheung-Woon`` consists of 7 herbal powders, known for useful effect on attention. Results : After inhalation smokes of ``Cheung-Woon``, the mean RR, and mean HR were decreased and SDNN, VLF, LF, TP were increased, but it`s not significant. Further, HF, and norm HF were decreased, and LF/HF ratio, and norm LF was increased significantly (p<0.01). Conclusions : This results (Ed note: ``this result`` or ``these results``) show that incense smokes inhalation of ``Cheung-Woon`` is an effective way of decreasing parasympathetic nervous activity and increasing sympathetic activity and attention.