Change of Hemoglobin Concentration of Cerebral Cortex and Respiration Frequency during Qi-emission Task
Author: Weizhong C 1,2,3//Zhang T3//Wang F 3//Kokubo H 3////
Affiliation:
Diversity and Fractal Science, Graduate School of Science and Technology, Chiba University (Chiba, Japan) [1]//National Institute of Radiological Sciences (Chiba, Japan) [2]//International Research Institute (Tokyo, Japan) [3]
Conference/Journal: J Soc Life Info Sci
Date published: 2003
Other:
Volume ID: 21 , Issue ID: 2 , Pages: 473-492 , Word Count: 154
Hemoglobin concentration change of cerebral cortex during Qigong has been studied by the relatively new technique multi-channel near-infrared spectroscopy (NIRS). We measured concentration change for six Qigong experts and twelve normal controllers using NIRS instruments from two makers. We analyzed the left frontal area (Fp1) and found the oxygenated hemoglobin and total hemoglobin concentrations of cerebral cortex during Qi-emission task were of two types, compared to the control task. Both concentrations had statistically significant increase (p<0.01) for three Qigong experts and decrease (p<0.01, both concentrations) forthree others. Moreover, there was statistical significance (p<0.01, both concentrations) betweenQigong experts and normal controllers. These results agreed with results of a previous report that observed and analyzed the right frontal area (Fp2). One Qigong expert also showed a strong correlation (r=0.94) between oxygenated hemoglobin concentration change and respiration frequency during a Qi-emission task. The specialized breath control could influence blood volume of the cerebral cortex.
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