• Christina E McGovern and Corjena Cheung.
• J Midwifery Womens Health. 2018 Jul 1; 63 (4): 470-482.

IntroductionPrimary dysmenorrhea is a prevalent condition causing quality of life (QOL) reduction for many women, resulting from pain as well as parallel social and psychological distress. Yoga reduces pain and sympathetic reactivity, thus promoting QOL. This article reports a systematic review of the evidence for the effectiveness of yoga as a QOL improvement method for women with primary dysmenorrhea.MethodsThe PRISMA guidelines were used in preparation of this review. Ovid MEDLINE, PsycINFO, CINAHL, Scopus, PubMed, ScienceDirect, Cochrane Database of Systematic Reviews (CDSR), and Cochrane Central Register of Controlled Trials (CENTRAL) were screened through January 2017 using the keywords yoga, meditation, menstrual cycle, dysmenorrhea, pelvic pain, and prostaglandins. English-language randomized controlled trials (RCTs) and quasi-experimental studies regarding yoga, primary dysmenorrhea, and QOL were eligible; all yoga styles were included. Two independent reviewers rated the methodological quality of each study selected for review using the Downs and Black checklist; possible scores ranged from 0 to 32. Ratings were established through consensus.ResultsThe search yielded a total of 378 articles, of which 14 (age range 13-45 years, N = 1409) met the criteria for final review: 8 RCTs and 6 quasi-experimental studies. Downs and Black ratings were predominantly moderate in quality with moderate risk of bias, ranging from 15 to 23 (RCTs) and 10 to 17 (quasi-experimental studies). Statistically significant improvements along most QOL domains, including physical pain, sleep, concentration, negative feelings, social relationships, work capacity, and overall QOL, were identified after a yoga intervention. Results indicate preliminary evidence for yoga as a safe and effective QOL improvement method for women with primary dysmenorrhea.DiscussionPractitioners may consider yoga for management of primary dysmenorrhea. However, future research using larger RCTs of high methodological quality is needed to ascertain the magnitude of yoga's clinical significance.© 2018 by the American College of Nurse-Midwives.

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