中文摘要：

目的探索制约刮痧疗效（穴位刮痧、循经刮痧）的基本因素，确定刮痧部位、手法强度与疗效的关系。方法将符合纳入标准的210例腰肌劳损患者，采用中央随机电话拨号的方法分为穴位出痧组、循经出痧组、穴位不出痧组、循经不出痧组、针刺组5组，每组42例，分别给于刮痧或针刺治疗，连续治疗7次。5组均于治疗前、每次治疗后、治疗后1个月、3个月随访时记录VAS标尺图得分、ODI量表得分，并统计疗效。结果5组治疗后VAS得分、ODI得分均较治疗前明显改善（P〈O．01），随访1个月、3个月疗效稳定，以循经出痧组疗效最优（P〈O．01），为89．74％；Logistic逐步回归分析提示是否出痧和循经刮拭是疗效的主要影响因素。结论刮痧疗法能够有效缓解腰痛症状，出痧和循经刮拭是刮痧疗效的主要影响因素。

英文摘要：

OBJECTIVE To discuss the basic factors influencing curative effects of Gua Sha （at acupoints or along meridi- ans） and explore relations of curative effects with site and strength. METHODS 210 patients with lumbar muscle strain were divided into 5 groups with 42 cases in each group, namely the group of Gua Sha at acupoints with ecchymosis, the group of Gua Sha therapy along channels with ecchymosis, the group of Gua Sha at acupoints without ecchymosis, the group of Gua Sha therapy along channels without ecchymosis and the group of acupuncture. The 5 groups were treated for 7 times successively. VAS scores, ODI scores and curative effects of the 5 groups were recorded before and after each treatment and during follow- up visits which were one month and three months after treatment. RESULTS VAS scores and ODI scores of the 5 groups af- ter treatment were obviously improved （P~0.01） and the curative effects were reliable during follow-up visits one month and three months after treatment and the group of Gua Sha therapy along channels with ecchymosis had the best curative effect（89. 7 %）. The ecchymosis and scraping sites are the main influential factors of curative effects by Logistic stepwise regression anal- ysis. CONCLUSION Gua Sha therapy has significant effects on the symptoms of lumbago. The ecchymosis and manipulating Gua Sha therapy along channel are the main factors affecting the corresponding curative effects.