To determine whether Mulligan mobilization with movement (MWM) and Conservative treatment CT give different results on pain, ROM, and functional activities in participants with shoulder problems.

Shoulder problems are one of the common orthopedic problems. Patients with shoulder problems experience an increase in pain and a decrease in joint movement and functionality. With conventional treatment, patients' symptoms improve. However, the MWM is one of the manual therapy techniques frequently used to reduce pain in musculoskeletal system problems. It is extremely important to evaluate patients' functionality after rehabilitation. Although there are studies comparing the effect of MWM in the literature, studies evaluating patient-specific functionality are also limited.

Inclusion Criteria:

• Being over 18 years old,
• Having any shoulder problems (impingement, rotator cuff syndrome, glenohumeral joint problems, etc.),
• Having a history of shoulder pain lasting at least 3 months, and volunteering to participate in the study.

Exclusion Criteria:

• Having systemic or degenerative disease, a neurological disease, and
• Having more than one upper extremity pathology.