Supraspinatus Tendinopathy

This study will be conducted to investigate the difference between high-intensity laser and extracorporeal shock wave on supraspinatus tendon thickness, subacromial space, occupation ratio, shoulder pain intensity, shoulder range of motion (ROM), hand strength, and functional disability in patients with chronic supraspinatus tendinopathy.

The aim of this clinical trial is to evaluate the effects of two percutaneous stimulation techniques-Percutaneous Electrical Stimulation (PENS) and Percutaneous Electrolysis (PE)-combined with a therapeutic exercise (TE) program for the shoulder joint complex, on pain and function in individuals with chronic supraspinatus tendinopathy. The main question this study seeks to answer is: Would incorporating percutaneous electrical stimulation (PENS) of the axillary and suprascapular nerves and galvanic percutaneous stimulation (PE) of the supraspinatus tendon into a therapeutic exercise (TE) program for the shoulder joint complex improve therapeutic outcomes in terms of pain, function, and upper limb disability? Based on an exercise program in all groups, researchers will compare the efficacy of active PENS and PE, as well as placebo, in all their combinations. Participants will undergo a 12-week exercise program, during which they will receive four sessions (one session per week) of active percutaneous electrical stimulation or a placebo during the first month. Participants will: * Visit the center on four separate occasions for results measurement. * Keep a session log to verify adherence to the exercise program.

Rotator cuff tendinopathy (RCT) is one of the most common causes of shoulder pain, resulting in functional limitations and reduced quality of life. Exercise therapy is considered a first-line treatment; however, adjunct modalities such as extracorporeal shock wave therapy (ESWT) may enhance recovery. This study aims to evaluate the effect of adding ESWT to a rotator cuff and scapular stabilization exercise program in patients with rotator cuff tendinopathy.

Chronic shoulder pain due to impingement syndrome and supraspinatus tendinosis is a debilitating condition. Suprascapular nerve innervates most part of shoulder joint. Supraspinatus nerve block can be used as a part of pain therapy. However, its efficacy is short-lasting. To prolong analgesia, short bursts of electrical stimulation to suprascapular nerve may be applied. To the date there is no consensus about duration of these type of stimulation. Investigators' aim is to investigate efficacy of two different duration of stimulation (pulsed radiofrequency) on chronic shoulder pain.