Transcutaneous Auricular Vagus Nerve Stimulation on Dizziness & Balance in Elderly Population

Study will be conducted after the approval of Ethical review board. After the initial evaluation will be done on participants underlying eligibility criteria. Experimental group will received intervention of 30 minutes daily for 4 weeks (16 sessions). Assessment was done at the baseline, after 2 weeks and after 4 weeks. Intervention Group received non-invasive vagus nerve stimulation at left auricle (because of anatomy of vagus nerve as right VN innervate SA node which is regulating heartbeat and left VN innervates AV node which is responsible for controlling timing of heartbeat) of ear. VNS group received vagus nerve stimulation via Med Fit vagus nerve stimulator at auricle of left ear only as stimulation of right auricular branch of vagus nerve can result in bradycardia. Frequency of stimulation was kept between 15-30Hz. Intensity was gradually increased according to patient's tolerance. The participant was able to withdraw from the trial if he could not tolerate the stimulation

Study will be conducted after the approval of Ethical review board. After the initial evaluation will be done on participants underlying eligibility criteria. The control group will intervention of 30 minutes daily for 4 weeks (16 sessions). Caw Thorne Cooksey exercises were carried out during the stimulation of vagus nerve. Although no adverse effects had been reported during the stimulation of left auricular branch of vagus nerve but a pulse oximeter was used during the stimulation to monitor the heart rate.