SIS is an important cause of pain and disability and affects activities of daily living. Therefore, a major goal of SIS treatment is to reduce pain and improve upper extremity function. In this prospective, randomized controlled, single-blind, interventional trial, a total of 60 patients with SIS who met the eligibility criteria are going to enrolled in the study. Eligible participants are going to randomly assign to one of the three groups by an independent blinded researcher, using a computer-generated random numbers and allocation ratio of 1:1:1: the LLLT group (LG, n = 20), the ultrasound therapy group (UG, n = 20), and the control group (CG, n = 20). Participants are going to evaluate before training, and at the 1-month follow-up and 3-month follow-up using the visual analog scale (VAS) scores for pain during activity, at rest, and at night, and the Shoulder Pain and Disability Index (SPADI).
The aim of this study is to evaluate the effects of low-level laser therapy (LLLT) and therapeutic ultrasound combined with home-based exercise in comparison with home-based exercise alone in patients with subacromial impingement syndrome (SIS). Participants are going to evaluate before training, and at the 1-month follow-up and 3-month follow-up using the visual analog scale (VAS) scores for pain during activity, at rest, and at night, and the Shoulder Pain and Disability Index (SPADI).