Abstract
In the ISLIS 47th Symposium on Life Information Science (March 2019), the author presented his insights on the change of Qi sense and body coordination during performances before and after health nourishing Qigong that requires externally-regulated respiration. The previous study signalled that a Qigong performance that requires regulatory respiration helps a performer improve body coordination in the subsequent Qigong exercise. In this study, the author asked a practitioner with a 40-year experience in Qigong to perform in the same procedure as the author did in previous studies, and discussed whether externally-regulated respiration would have a positive effect on the performance of the experienced practitioner. In the experiment, the experienced practitioner was asked to perform a Yi Jin Xing Qi Fa, one of health nourishing Qigong, before and after another health nourishing Qigong (Taiji Qigong Shiba Shi) that requires regulatory respiration. To investigate the degree of coupling between body parts, cross recurrence quantification analysis (CRQA) was used. Mood and flow experience of the practitioner after Taiji Qigong Shiba Shi performance were assessed with TDMS-ST and FSS. TDMS-ST assessment indicated that the mood became more comfortable and active after Taiji Qigong Shiba Shi performance that requires externally-regulated respiration. FSS result suggested that the flow state improved after Taiji Qigong Shiba Shi. Though the degree of wrist coordination during the performance of Yi Jin Xing Qi Fa may have varied between pivot legs, it was found that the performance of the practitioner was very robust in body coupling compared to the performance of a beginner. This study intends to discuss the essence of Yi Jin Xing Qi Fa, a unity of mood (awareness), flow state (Qi sense) and body movements (wrist coordination; physical power).
