In the cross-sectional studies, cardiorespiratory function of 90 middle-aged (range 50-64 yrs) and 76 elderly (range 65-80 yrs) subjects were tested by cycle ergometry.

• 在横断式研究中，有90位中年人(50至64岁)及76位老年人(65至80岁)参与，依性别各分为太极拳组与对照组。