Clinical Research Directory

The Relationship Pain Beliefs With Kinesiophobia, Catastrophizing, Pain Knowledge, and Shoulder Functional Disability in Individuals With Shoulder Pain

This cross-sectional observational study aims to examine the relationship between psychological and organic pain beliefs and kinesiophobia, pain catastrophizing, pain knowledge, and shoulder functional disability (SPADI) in individuals with shoulder pain. The study seeks to clarify how pain-related beliefs influence physical and psychological outcomes in musculoskeletal shoulder pain.

Investigation of Core Muscle Strength in Patients With Unilateral Rotator Cuff Injury

Located in the middle of the kinetic chain system, the core muscles are the regions where forces are generated and transferred to the extremities of the body. The core includes the abdominal muscles in the front, the paraspinal and gluteal muscles in the back, the diaphragm muscle above, and the pelvic floor and hip girdle muscles below. Good core function is essential for performing dynamic upper and lower extremity movements. A relationship between shoulder function and the core region has been shown through the activation of core muscles during upper extremity movements. Muscle strength and endurance in the core region are needed to maintain functional stability during glenohumeral movements. The ability to maintain shoulder function is largely dependent on the stability of the trunk, which is closely related to the stability and balance control of the lower extremities. The shoulder girdle needs to compensate for the loss of core stability and/or inadequate coordination of the legs, trunk, or scapula by increasing the speed and/or power of movement. There are studies showing that weight shifts to the affected side in patients with shoulder pain. However, it is not clear whether balance disorders in patients with shoulder pathology contribute to shoulder pathology or, more accurately, whether they are a result of shoulder pathology. Changes in the static position of the scapula or dynamic scapular movement are generally defined as scapular dyskinesia. Due to changes in normal scapular kinematics, the normal biomechanics of the shoulder and joint stability also change. Scapular dyskinesia mostly occurs as a result of changes in coordination or activation between muscles. As a result, investigators planned their study based on the fact that shoulder pathologies can affect core, balance and scapular dyskinesia. For this purpose, investigators will compare the measurements investigators will take from those with unilateral shoulder pain and healthy individuals.

Effect of the Modified Sleeper-Stretch on the Elasticity of the Posterior and Posteroinferior Glenohumeral Capsule

The goal of this quasi-experimental study is to determine the effect of the self-administered Modified Sleeper-Stretch on the elasticity of the posterior and posteroinferior glenohumeral capsule in adult individuals of both genders who either have clinical history of non-specific shoulder pain in a single shoulder or have no history of shoulder pain at all, being the assessment made by means of shear wave elastography. The main hypothesis it aims to confirm is: • A soft tissue stretching program, using the Modified Sleeper-Stretch, aimed at general adult population with history of nonspecific shoulder pain that has occurred with glenohumeral internal rotation deficit improves the elasticity of the posterior and posteroinferior glenohumeral capsules, showing no significant effect on general adult population without history of shoulder pain. Researchers will compare the effect of the Modified Sleeper-Stretch in the elasticity of the posterior and posteroinferior glenohumeral capsule in individuals with history of shoulder pain applying the technique on the affected shoulder and comparing with the healthy shoulder. In healthy individuals the intervention will be made on a randomly assigned shoulder and the effect will be compared to the non-interventional shoulder. Finally, a comparison between groups will be made considering only the intervention shoulder to see if there are differences in the effect amongst healthy and affected individuals. Participants will be asked to follow a self-administered Modified Sleeper-Stretch program consisting of the execution of the stretch three times, for thirty seconds each time, with thirty seconds between stretches, daily, for twenty-eight days.