Acute Effects of Deep-Slow Breathing Exercise and Cranial-Visceral Manual Therapy on ANS Parameters in Healthy Adults

This group of patients will receive manual therapy techniques to harmonize vegetative nervous system. PPG and GSR will be recorded during the intervention. The techniques consist of CV-4 technique, suboccipital decompression, lumbo-sacral decompression, release of the transverse diaphragms, frontal lift technique, parietal lift technique, temporal techniques, temporo-mandibular joint myofascial release, deep cervical fasciae technique as described in Upledger's protocol. In addition to the protocol; rib raising technique, larynx and sternocleidomastoid muscle fascial release and occipito-mastoid suture release will be applied. All intervention is planned to take approximately 20 minutes. The group will include forty healthy individuals.

Patients in this group will do slow paced breathing to increase heart rate variability as it can be partially modulated by respiratory effects. The patients will be able to cease the session in case of feeling uncomfortable. The main purpose will be that the individuals should breathe six breaths per minute to increase respiratory sinus arrhythmia which is also reflected at PPG waveforms and in reduction in GSR. The group will include forty healthy individuals.

Control group patients will be attached to the sensors, and they will rest in a quiet and controlled indoor environment without any intervention. The aim of including this group is to to understand whether the parasympathetic effects expected in the manual therapy group were due to the intervention. The group will include forty healthy individuals.