Effectiveness of Noninvasive Phrenic Nerve Neuromodulation in Shoulder Pain and Hepatobiliary Visceral Comorbidity.

The intervention group will receive the usual physiotherapy treatment at the health center and will also receive neuromodulation on the phrenic nerve at its exit through the anterior cervical region. The neuromodulation technique will be applied for 10 minutes.

the usual treatment of the center consisting of manual therapy, exercise and thermotherapy will be performed.