IRCT20221007056107N1 IRCT 2023-01-07 Iran University of Medical Sciences Effect of ART on chronic supraspinatus tendinopathy The effects of Active Release Technique and exercise therapy on pain and function in nonprofessional adult athletes with chronic supraspinatus tendinopathy 2023-01-21 anticipated 30 Complete https://irct.ir/trial/67334 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: aabb Bbaa Abab Baba Abba Baab 1)Write these items on six paper and put in the six packets 2) Draw eight times until eight envelopes are selected , provided that the envelopes are repeated 3) Each characteristics of the specification of the four allocations of the individual, Blinding description: After the examination (by another physiotherapist) and making sure that they have the conditions to enter the study, people will be admitted to one of the ART groups or exercise therapy through a sealed envelope. N/A Shoulder impingment syndrome. Intervention 1: Intervention group: Intervention group: 12 sessions (3 sessions per week) of the ART technique are performed on the supraspinatus, middle deltoid, and upper trapezius muscles.and moved shorting muscle length to long muscle length . this contact is held for 5-10 s . this was performed 3-5 time. Intervention 2: Control group: Control group: 12 sessions (3 sessions per week) exercises include: scapula stabilizer (external rotation-scaption lawnmower) and rotator cuff strengthening (side lying external rotation). The intensity of these exercises in the first two weeks is 30-40 1RM and in the second two weeks 50-70 1RM. 3 sets of 12 and stretching exercises (cross body and corner strech) 3 sets of 30 seconds. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is no more information