Heart Rate Variability as a Predictor of Speaking Anxiety

This study examines the relations among the perception of speaking anxiety and difficulties in emotion regulation with 2 measures of physiological activity: heart rate (HR) and heart rate variability (HRV). Results show significant changes in HR and state anxiety, but not HRV, among the 6 experimental conditions: quiet, reading in both sitting and standing positions, and speaking in both sitting and standing positions. HRV significantly and negatively correlated with difficulties in emotion regulation and HR, but not with public speaking apprehension (PSA) scores or state anxiety ratings. PSA scores, however, were significantly and positively correlated with state anxiety ratings. Results are interpreted in terms of the simultaneous, coordinated operation of physical reactions and emotional coping strategies.