title: [Analysis on ebb-flow of ying-qi].
abstract: OBJECTIVE
  To analyze and evaluate practical significance of the ebb-flow theory of ying-qi.
  
  
  METHODS
  Based on The Yellow Emperior's Internal Classic, the comparisons of the number of channels, collaterals and their bone-length measurement participating in ebb-flow of ying-qi, ying-qi ebb-flow theory with the practically respiratory-pulse ratio, human heart rate and pulse rate, human respiratory times, ying-qi ebb-flow theory with early channel theory, ying-qi ebb-flow theory with degrees of whole day, were tested and verified.
  
  
  CONCLUSIONS
  Practically, the ying-qi ebb-flow theory conforms few to human body, which possibly is an assumption of the ancients.
authors.affiliation: TCM College of Capital Medical University, Beijing 100013, China.
authors.forename: Hong-Mo
authors.initials: HM
authors.lastname: Wang
mesh_terms: D006339:Heart Rate; D006801:Humans; D019413:Qi