Breathing-Based Meditation Decreases Posttraumatic Stress Disorder Symptoms in U.S. Military Veterans: A Randomized Controlled Longitudinal Study

Given the limited success of conventional treatments for veterans with posttraumatic stress disorder (PTSD), investigations of alternative approaches are warranted. We examined the effects of a breathing-based meditation intervention, Sudarshan Kriya yoga, on PTSD outcome variables in U.S. male veterans of the Iraq or Afghanistan war. We randomly assigned 21 veterans to an active (n = 11) or waitlist control (n = 10) group. Laboratory measures of eye-blink startle and respiration rate were obtained before and after the intervention, as were self-report symptom measures; the latter were also obtained 1 month and 1 year later. The active group showed reductions in PTSD scores, d = 1.16, 95% CI [0.20, 2.04], anxiety symptoms, and respiration rate, but the control group did not. Reductions in startle correlated with reductions in hyperarousal symptoms immediately postintervention (r = .93, p < .001) and at 1-year follow-up (r = .77, p = .025). This longitudinal intervention study suggests there may be clinical utility for Sudarshan Kriya yoga for PTSD.

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Reference: 
Emma M. Seppälä, Jack B. Nitschke, Dana L. Tudorascu, Andrea Hayes, Michael R.Goldstein, Dong T. H. Nguyen, David Perlman, Richard J. Davidson | 2014
In: Journal of Traumatic Stress, ISSN 0894-9867 | 27 | 4 | augustus | 397-405
http://onlinelibrary.wiley.com/doi/10.1002/jts.21936/abstract;jsessionid=7D664E5BB8276F3F898DB87AB1CEC17C.f04t01