Analysis of Neuromodulation as a Complementary Treatment to Evidence-based Clinical Intervention in Subjects With Musculoskeletal Pathology of the Upper Limb: a Double-blind Randomized Clinical Trial

This project aims to analyze the use of neuromodulation within a treatment protocol for musculoskeletal conditions of the upper limb, as well as to determine the difference between two and three sessions per week. Study participants will be divided into four intervention groups: the first will receive two sessions per week for a period of six months, while the second will receive three sessions per week for the same period. The treatment protocol will consist of therapeutic physical exercise focused on the muscles and joints of the lower limb, stretching of the involved muscles, and neuromodulation of the brachial plexus nerve root, which innervates the affected structures. The third and fourth intervention groups will receive the same treatment as mentioned above, but without neuromodulation. The third group will receive three sessions per week, while the second group will receive two sessions per week. Two different types of measurement variables will be used: objective variables will be used to measure range of motion and muscle strength. Subjective variables will also be used through validated questionnaires, covering physical activity, health-related quality of life, upper limb function, and a visual analog scale for pain perception.