Author: Yoshida K 1//Yoshihuku Y 2//Aoki T 3//Adachi Y 4
Faculty of Arts and Sciences, Chubu University (Aichi, Japan) //High-Tech Research Center, Chubu University (Aichi, Japan) //College of Engineering, Chubu University (Aichi, Japan) //College of Business Administration and Information Science, Chubu University (Aichi, Japan) 
Conference/Journal: J Intl Soc Life Info Science
Date published: 2002
Other: Volume ID: 20 , Issue ID: 2 , Pages: 563-569 , Word Count: 150
We examined the effect of the Qigong exercise Suwaishou (SW) on the muscle groups of the lower extremities by measurement of the sway of the center of gravity. The subjects performed SW four times for 10 min each time. The sway length of every subject increased remarkably after SW. It increased gradually until after the second performance of SW, and showed a stable value after that. After the last performance of SW the sway length was 1.7-1.8 times greater than after a chair rest. The sway area showed a similar increase and finally reached a value 1.9-2.0 times greater than after a chair rest. These results in addition to the impressions stated by the subjects meant that SW places a rather strong load on leg muscles, and can be a satisfactory exercise, especially for the elderly, whose leg muscles have declined, and that its suitable performing time is about twenty minutes.