Author: Cai Shangda 1//Zeng Guangyuan 1//Lou Shenhong 2//Zhang Jinmei 3//Chen Yienfeng 4//He Jinhong 4
Affiliation: Dept Biology, Sun Yat-Sen University of Medical Sciences, Guangzhou, China  //Dept Chemistry, South China Technical University, Guangzhou, China  //Dept Physiology, Sun Yat-Sen University of Medical Sciences, Guangzhou, China  //Qigong Society of Guangdong Province, China 
Conference/Journal: 3rd Nat Acad Conf on Qigong Science
Date published: 1990
Other: Pages: 55 , Word Count: 177
The effect of waiqi of qigong on the contents of free radical in various rat tissues was quantitatively studied with electron spin resonance technique. The purpose of it was to examine the biological effects and explore their mechanism of qigong. Rats were exposed in the field of waiqi for 5 min., 10 min., 20 min., 40 min., and 60 min. respectively, compared with their respective control groups.The result of the contents of free radical in hearts in the 40-min. and 60-min. groups were significantly lower, and the free radical significantly decreased for livers in the 20-min., 40-min., and 60-min. groups, whereas the contents of free radical in brain tissues is significantly higher in its 40-min. and 60-min. groups. There where no effects on the contents of free radical in kidneys and lungs.
The results showed that the content of free radical was affected by waiqi which indicated waiqi is a kind of human energy. This is an important passage to study the effects of qigong in ageing process and diseases.
Different effects occurred in different tissues, its particular mechanism remains unknown.