Objective To study the infrared charts of three groups of winter swimming

normal constitution and HIV/AIDS

explore the characteristics of the thermal difference（△t） data of automatic thermal analysis（ATA） for reviewing the conditions of human healthy qi by applying ATA technique

and analyse the conclusion combined with TCM theory.Methods The cross-section research of the three groups was designed for observing △t data of Governor Vessel（GV）

Conception Vessel（CV）

Shenque（CV8）

kidney

life gate

triple energizer

five zang-viscera and six bowels.The data were computed mathematically by using single factor variance analysis.Results The relative △t of GV in the three groups showed a descending order

and pairwise comparison had statistical significance respectively（P<0.01）.The relative △t of CV8 and life gate was higher significantly in the groups of normal constitution and swimming than that in the group of HIV/AIDS

and △t of CV was higher significantly in the group of HIV/AIDS than that in the groups of normal constitution and swimming.The relative △t of kidney in the three groups showed a descending order

and pairwise comparison had statistical significance respectively（P<0.01）.Conclusion The changes of △t of GV

CV

CV8

kidney

life gate

triple energizer

five zang-viscera and six bowels express the conditions of human healthy qi in this experiment

which is in accordance with the explanation of healthy qi in TCM theory.