Tai chi chuan (or "tai chi", "taijiquan") is a martial art originating in China on pre-space-flight Earth.

By the twentieth century it was commonly practiced as exercise, as a meditation, or for esthetic reasons rather than for actual combat.

23rd centuryEdit

Wheel and other stewards on the USS Mumbai did tai chi exercises before preparing breakfast each morning. (TOSS #31 "Traditional Forms")