Pain Outcomes Comparing Yoga Versus Structured Exercise (POYSE) Trial

The Pain Outcomes comparing Yoga versus Structured Exercise (POYSE) Trial is a 2-arm parallel group, randomized clinical trial to compare the effectiveness of a yoga-based intervention (YOGA) with that of a structured exercise program (SEP) for subjects with fibromyalgia. The study aims are: 1) to compare the interventions\' (YOGA vs. SEP) effects on overall fibromyalgia severity at 1 month (early response), 3 months (immediate post-intervention) and at 6 and 9 months (sustained effects); 2) to compare the interventions effects on specific fibromyalgia symptoms (pain, sleep, and fatigue), functional impairment, and related outcomes (quality of life, psychological symptoms); and 3) to compare the cost-effectiveness of the interventions.