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目的:探讨艾灸对中青年人机体亚健康状态的影响.方法:选取中青年亚健康志愿者39名,男性13名,女性26名,采用温和灸,穴位选取神阙、关元、足三里(双)、脾俞(双)、肾俞(双),每次20 min,隔日1次,共灸10次.分别在艾灸前、艾灸3次后、6次后、10次后、灸后第15 d采用微循环检测仪检测甲襞微循环形态、流速及袢周的变化.结果:艾灸后,异常的微循环毛细血管形态随着艾灸次数的增加逐渐转变为正常;毛细血管管袢数、输入枝管径、输出/输入枝管径、流态积分、袢周积分、总积分与艾灸前比较,差异均具有显著统计学意义(均P＜0.01).结论:艾灸改变了机体微血管的状态,改善了血液流态,襻周状态变得清晰,使血流加速、微循环灌注量增加,从而调节人体的亚健康状态.“,”Objective To explore the mechanism of moxibustion for people in sub-health status.Methods Thirty-nine young and middle-aged sub-health volunteers were enrolled,including 13 males and 26 females.Mild moxibustion was adopted,and Shénquè(神阙 CV 8),Guānyuán(关元 CV 4),Z（u)sānlǐ(足三里 ST 36,bilateral),Pish(u)(脾俞 BL 20,bilateral) and Shènsh(u) (肾俞 BL 23,bilateral)were selected.The moxibustion was performed once every other day,20 min at each time,and moxibustion for ten times was needed.The changes in morphology,flow velocity and pefiloop of nailfold microcirculation were detected by adopting microcirculation detector before moxibustion,after moxibustion for three times,six times,ten times,and on the 15th day after moxibustion,respectively.Results After moxibustion,the abnormal blood capillary morphology of microcirculation gradually turned into normal pattern along with the increase of the number of times of moxibustion,according to the comparison of the number of capillary loop,the diameter of input limb,the diameter of output limb/the diameter of input limb,flow pattern integral,pefiloop integral and total integral with those before moxibustion,the differences were all statistically significant (all P＜0.01).Conclusion Moxibustion changs the microcirculation of nailfold of body,improves the blood flow pattern,makes the pefiloop status clear,accelerats the blood flow and increases the microcirculation perfusion amount,thus regulating the subhealth status of human body.