Non daily and daily:On sport duality
Based on the game theory,the author compared and studied various sports theories,and drew the follow-ing conclusions: 1)sport is provided with such two attributes as non daily and daily;sport with such two attributes represents two different value orientations;the "non daily" attribute refers to the nature of indirect production and entertainment,while the "daily" attribute refers to sports competition originating from daily life and sports utilitari-anism it resulted in;2)sport is a non daily physical activity of competition;3)the mutual gaming and containing of the two value orientations have gone though the entire history of sport;subsistence under the tension of "duality" constitutes the basic status of subsistence of sport.