A Knight Ridder article that ran in our local paper on 3 July 2003 discussed Qigong:
I think I wouldn't agree that Tai Chi is merely a subset of Qigong, despite the overlap!
Some of us might better recognize the art as tai chi ("tie-chee"), though there is a distinction.
Qigong is a series of what appear to be simpledeep-breathing exercises and subtle movements, such as flexing torso movements.
Tai chi could be called a subset of qigong. Tai chi's gentle, flowing exercises are part of the large number of qigong movements that are rpescribed by Chinese traditional medicine practices to "move" someone's "qi," or energy.
Tai chi is a sort of introduction taught at many health clubs and fitness centers. The East Bank Club in Chicago offers traditional tai chi and a tai chi stretch class.
I think I wouldn't agree that Tai Chi is merely a subset of Qigong, despite the overlap!