Compare the Effects of Different AVNS Parameters on Neck Pain, HRV, Balance in Collegiate Atheletes

"Auricular vagal nerve stimulation using TPN dual channel TENS will be used for the study.The device used to stimulate is a conventional TENS. The stimulation is by applying a clip electrode placed on the tragus of the left ear and a second electrode applied on the left upper trapezius of the participant which will then stimulate the vagus nerve.Auricular vagus nerve stimulation session will be applied for 15 minutes. Participant is seated and relaxed.After the first session ended; heart rate will be measured and recorded once again to see the effect of the VNS.~Before the last AVNS session started; heart rate will be measured and recorded. The participants' vagus nerve is then stimulated for 15 minutes."