The objectives of this study was to examine changes in physiological and psychological measures in a group of healthy volunteers following participation in a Holorenic Breathwork session. A single group, pretest/posttest design was used. Psychological and physiological measures were taken: psychological measures included the State-Trait Anxiety Inventory (STAI), and physiological measures included the HRV.

This preliminary study involved 11 participants. The intervention consists in a/ was a single Holotropic Breathwork session. Participants completed the psychological assessments and provide a HRV measure at baseline (pre-HB) and within 15-30 minutes after de HB session (post-HB).