The Effect of Auricular Vagus Nerve Stimulation and Controlled Breathing Exercises on Performance and Autonomic Nervous System

In the study, CE certified vagus nerve stimulation device Vagustim will be used. Transcutaneous auricular vagus nerve stimulation will be applied bilaterally. The stimulation pulse width is 300 microseconds, frequency is 10 Hz and will be applied biphasically for 20 minutes.

"A controlled breathing exercise group will continue for a total of 2 weeks and will receive 10 sessions of 20 minutes per day.~The thoracic expansion exercise will be performed in 10 repetitions. In each intervention session, 2 sets of nadi shodhana pranayama consisting of 8 respiratory cycles will be applied to the patients, with a 2-minute rest period between the sets. Kapalabhati will be practised for 3 minutes, with 15 quick breaths in 10 seconds followed by a 20-second break (a total of 30 breaths per minute). In each session, 2 sets of bhramari pranayama consisting of 10 breathing cycles will be performed at a low respiratory rate, with a 1-minute rest period between sets. The physiological sigh exercise involves the first inspiration phase being 1 second, the second phase 0.25 seconds, and the exhalation 2 seconds for 3 minutes."