Posttraumatic stress disorder (PTSD) is a debilitating condition that affects approximately 10% of women in the United States. Although effective psychotherapeutic treatments for PTSD exist, clients with PTSD report additional benefits of complementary and alternative approaches such as yoga. In particular, yoga may downregulate the stress response and positively impact PTSD and comorbid depression and anxiety symptoms. We conducted a pilot study of a randomized controlled trial comparing a 12‐session Kripalu‐based yoga intervention with an assessment control group. Participants included 38 women with current full or subthreshold PTSD symptoms. During the intervention, yoga participants showed decreases in reexperiencing and hyperarousal symptoms. The assessment control group, however, showed decreases in reexperiencing and anxiety symptoms as well, which may be a result of the positive effect of self‐monitoring on PTSD and associated symptoms. Between‐groups effect sizes were small to moderate (0.08–0.31). Although more research is needed, yoga may be an effective adjunctive treatment for PTSD. Participants responded positively to the intervention, suggesting that it was tolerable for this sample. Findings underscore the need for future research investigating mechanisms by which yoga may impact mental health symptoms, gender comparisons, and the long‐term effects of yoga practice. 標題：一個隨機對照研究有關瑜伽作為婦女PTSD症狀的介入治療的先導計劃。 撮要：創傷後壓力症(PTSD)削弱大約10%美國婦女的能力。雖然PTSD已有有效的心理治療，但患者接受另類輔助醫療方案如瑜伽等都能有所裨益。再者，瑜伽可能調低壓力反應，及正面影響PTSD和焦慮、抑鬱的共病症狀。本研究隨機對照12節Kripalu瑜伽介入治療及一個評核對照組樣本包括38名現在患有充份或亞限度PTSD症狀 (即最少每一羣組有一症狀) 的婦女。在治療期間，瑜伽組的再經歷和過激反應降低；對照組再經歷和焦慮症狀亦有降低，這可能是對PTSD和相關症狀自己監察的正面效果。組別間有效值是小到中度 (0.08‐0.31)。瑜伽可能是PTSD的有效附加治療，但還需更多研究。參與者對比反應正面，顯示其可受性。結果強調將來我們對瑜伽如何影響精神健康症狀、性別差異和長遠效果各方面作進一步研究。 标题：一个随机对照研究有关瑜伽作为妇女PTSD症状的介入治疗的先导计划。 撮要：创伤后压力症(PTSD)削弱大约10%美国妇女的能力。虽然PTSD已有有效的心理治疗，但患者接受另类辅助医疗方案如瑜伽等都能有所裨益。再者，瑜伽可能调低压力反应，及正面影响PTSD和焦虑、忧郁的共病症状。本研究随机对照12节Kripalu瑜伽介入治疗及一个评核对照组样本包括38名现在患有充份或亚限度PTSD症状 (即最少每一羣组有一症状) 的妇女。在治疗期间，瑜伽组的再经历和过激反应降低；对照组再经历和焦虑症状亦有降低，这可能是对PTSD和相关症状自己监察的正面效果。组别间有效值是小到中度 (0.08‐0.31)。瑜伽可能是PTSD的有效附加治疗，但还需更多研究。参与者对比反应正面，显示其可受性。结果强调将来我们对瑜伽如何影响精神健康症状、性别差异和长远效果各方面作进一步研究。