Effects of Qi-therapy (external Qigong) on cardiac autonomic tone: a randomized placebo controlled study.
Heart-rate variability (HRV) was compared in 40 subjects receiving external Qi-therapy (QT) or placebo control therapy, in a randomized placebo controlled design experiment. There were significant time, and group x time interactions in heart rate (HR), low frequency (LF), high frequency (HF), and LF/HF. These suggest that QT reduced the HR and increased HRV as indicated by a reduced LF/HF power ratio of HRV. These findings suggest that QT stabilizes the sympathovagal function more than placebo therapy.
Lee
Myeong Soo
MS
Center for Integrative Medicine Institute of Medical Science Wonkwang University Iksan, Republic of Korea. integmed@chol.com
Kim
Mo Kyung
MK
Lee
Yong-Heum
YH
D000328:Adult; D001341:Autonomic Nervous System / Q000502:physiology*; D001945:Breathing Exercises; D003627:Data Interpretation, Statistical; D004562:Electrocardiography; D006321:Heart / Q000294:innervation / Q000502:physiology; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D010809:Physical Fitness / Q000502:physiology* / Q000523:psychology*; D015990:Placebo Effect; D011603:Psychophysiology; D016896:Treatment Outcome