Effects of Qi-therapy (external Qigong) on cardiac autonomic tone: a randomized placebo controlled study

Author: Lee MS//Kim MK//Lee YH
Center for Integrative Medicine Institute of Medical Science Wonkwang University Iksan, Republic of Korea. integmed@chol.com
Conference/Journal: Int J Neurosci
Date published: 2005
Other: Volume ID: 115 , Issue ID: 9 , Pages: 1345-50 , Word Count: 78

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.