Changement de la variabilité de la fréquence cardiaque en réponse à un traitement par la respiration profonde chez des patients cardiaques avec troubles anxieux : un protocole exploratoire à cas unique

An average of four hours of deep-breathing training appears to be sufficient to elicit changes in the activity of parasympathetic system measured by the RMSSD (temporal index) of HRV. However, this training is insufficient to generate change in the psychological variables. This data is interesting insofar as it provides insight into the reliability of HRV indices in patients with CVD and the linkage between physiological and psychological processes that are predicted to interact. Despite good internal validity of these experimental protocols, due to the limited number of participants it is not possible to generalize the results in these populations. However, psychotherapy of level 2 could be more effective in reducing psychological symptoms.