A Systematic Review of a Polyvagal Perspective on Embodied Contemplative Practices as Promoters of Cardiorespiratory Coupling and Traumatic Stress Recovery for PTSD and OCD: Research Methodologies and State of the Art
International Journal of Environmental Research and Public Health November 1, 2021 Andrea Poli, A. Gemignani, F. Soldani et al. 21 citations
Lower resting respiratory sinus arrhythmia (RSA), a measure of vagal tone, is linked to PTSD and OCD, and contemplative practices may increase RSA by activating the ventral vagal complex, aiding recovery. A systematic review of six studies (one cross-sectional, one pre-post, two cohort, two randomized controlled trials) found that mindfulness-related interventions increased parasympathetic activity and vagal tone while improving PTSD and OCD symptoms. Under polyvagal theory, mindfulness and compassion meditations act as neural exercises that expand the ventral vagal complex's capacity to regulate present states and build resilience.