Testing the acceptability and initial efficacy of a smartphone-app mindfulness intervention for college student veterans with PTSD.

This single-arm, pre-post feasibility study evaluated the acceptability and initial efficacy of a mindfulness smartphone-app intervention intended to promote resilience and improve posttraumatic stress disorder (PTSD) symptoms among college student military veterans. The app contained mindfulness exercises and meditations based on the acceptance and commitment therapy. Twenty-three student veterans used the app for four weeks. The results showed high levels of perceived satisfaction and usability of the app. Significant changes in resilience, mindfulness, PTSD, experiential avoidance, and rumination were observed. Future research is needed to test the intervention in a randomized controlled trial.