Cognitive Functional Therapy Versus Exercises for Chronic Shoulder Pain

The objective of this clinical trial is to determine whether cognitive functional therapy is superior to therapeutic exercises for the treatment of chronic shoulder pain. The main questions it aims to answer are: Is cognitive functional therapy superior to therapeutic exercises for pain and disability in individuals with chronic shoulder pain? Is cognitive functional therapy superior to therapeutic exercises for functionality and psychosocial factors? Participants will: Receive 4 to 8 sessions of cognitive functional therapy once a week for four to eight weeks. Follow a therapeutic exercise protocol for eight weeks with a frequency of twice per week.