摘要：Background: As one of the global infectious diseases, AIDS poses a serious threat to the safety and health of the society. In recent years, the proportion of drug addicts infected with HIV has been increased, and drug addicts became one of the main carriers of the spread of AIDS, which attracts worldwide attention. It has been reported that physical activity has positive effects on improving the inhibitory function of drug addicts and reducing their drug craving, but the mechanism of the internal inhibition remains to be further explored. Method: The drug addicts in an AIDS treatment center in Chongqing were investigated by means of Physical Activity Rating Scale (PARS - 3), Internal Inhibition Scale and Drug Craving Scale, and a structural equation model was established. Results: (1) There is no gender difference in the internal inhibition and drug craving of AIDS drug addicts, and there are significant differences in the types and years of drug abuse. (2) The amount of physical activity of AIDS drug addicts is positively correlated with the intrinsic inhibition, while the internal inhibition is negatively correlated with the drug craving, and the amount of physical exercise is negatively correlated with the drug craving. The years of drug abuse were negatively correlated with internal inhibition and positively correlated with drug craving. (3) Internal inhibition partly mediates between the amount of physical activity and the craving for drugs, and internal inhibition partly mediates between the number of years of drug abuse and the craving for drugs, which indicates that intrinsic inhibition has a dual mediating effect. Conclusion: Actively participate in physical activity, especially high-intensity physical activity can effectively enhance the internal inhibition of AIDS drug addicts and reduce their drug craving. Meanwhile, the difference in the drug-taking years among addicts should be paid attention to and the physical activity prescription should be formulated according to actual situation.
关键词：drug addicts with AIDS; physical activity; internal inhibition; drug craving; drug-taking years; dual mediating effect
