Figure 5

Effectiveness of coping interventions on cardiac coherence score. (a) Overall impact of relaxation breathing (dark blue), relaxation breathing paired with biofeedback (turquoise) and control (grey) on the evolution of the instantaneous score of cardiac coherence. Both coping interventions allows an increase in cardiac coherence scores. (b) Openness trait and cardiac coherence scores. Scatterplot of the relationship between openness and interventions. The grey circles indicate the control group, the dark blue triangles indicate the relaxation breathing group and the turquoise crosses indicate the relaxation breathing paired with biofeedback group. Higher score of openness are associated with higher score of cardiac coherence and so more efficient physiological stress coping (i.e. physiological relaxation).