In the past century, taijiquanhas undergone signficant changes, with its movements becoming more relaxed and graceful. Many moves requiring explosive strength disappeared, as did excessive foot stamping. Eventually taijiquan became popular with men and women, young old alike, and increasing attention was paid to its hygienic and theraqeutic value. In the pocess of its development, taijiquan gradually evolved into many different styles, which need not be described here. There were, however, five main schools, and numerous subdivisions under each school.
Motion remains even and fluid, with the muscles neither stiff nor rigid.
Breathing should be deep and regular. Thirdly, body movements are well coordinated throughtout the entire exercise period. Though the movements are gentle and slow, each part of the body is in constant motion. While practising taijiquan, the weight of the body is mainly borne by the waist and legs. A characteristic feature of taijiquanis that all movements are carried out in a half squatting position.