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IRCT20230612058457N6 IRCT 2025-06-04 University of Guilan Comparison of the Effects of Static Stretching and Dynamic Warm-up on Shoulder Performance in Athletes with Shoulder Impingement Syndrome Acute Effects of Static Stretching and Dynamic Warm-up on Shoulder Performance in Male Athletes with Shoulder Impingement Syndrome 2025-06-09 anticipated 50 Complete https://irct.ir/trial/83943 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Supportive, Other design features: This study will be a randomized controlledl trial, Randomization description: In this study, to allocate participants into three intervention groups (static stretching, dynamic warm-up, and combined), simple randomization with block randomization will be used. The unit of randomization will be the individual, and the allocation sequence to groups will be generated using the RandBox.top website with the method of balanced blocks. If controlling for confounding variables such as type of exercise or symptom severity is necessary, stratified randomization will be applied. To conceal the allocation (Allocation Concealment), sealed envelopes containing group codes will be used, which will be opened by an independent person after enrollment and pre-testing. These methods will ensure that the distribution of participants across groups is balanced and unpredictable, Blinding description: In the present study, the researcher recording the research variables is unaware of the participants' allocation to the exercise protocols. N/A Shoulder impingement syndrome. Intervention 1: Intervention group: Athletes with shoulder impingement syndrome participating in a static stretching protocol. The protocol includes six targeted active soft-tissue stretches for the shoulder, with each stretch performed in 3 sets of 30 seconds, and 15 seconds of rest between sets. The total duration of the protocol is approximately 10 minutes. Intervention 2: Intervention group: Athletes with shoulder impingement syndrome participating in a dynamic warm-up protocol. The protocol includes six dynamic exercises using a yellow resistance band, with each exercise performed for 10 repetitions at a speed of 2 seconds per repetition. Intervention 3: Intervention group: Athletes with shoulder impingement syndrome who participate in the combined protocol. This protocol includes three exercises from the static stretching protocol and three exercises from the dynamic warm-up protocol, performed with the same timing and structure as the other groups. The exercises include: shoulder extension, deltoid stretch, scapular punch, pectoralis major stretch, throwing acceleration, and triceps stretch. Intervention 4: Control group: Healthy athletes without symptoms of shoulder impingement syndrome who participate in all three intervention protocols (static stretching, dynamic warm-up, and a combination of static stretching and dynamic warm-up). This group is included for comparison of responses with the intervention groups (athletes with the condition). The order of protocol implementation is randomized, with a 72-hour interval between sessions. Yes - There is a plan to make this available What will be shared: En All data will be shared after anonymizing individuals, ensuring their non-identifiability. When: The data access period will start immeduately after the results are printed. To whom: The data will be accessible to researchers and organizations related to sports disciplines where the shoulder joint is the main involved joint. Conditions: In order to assist scientific research and promote the implementation of executive goals with a focus on reducing musculoskeletal injuries and enhancing the performance of athletes. Where to obtain: Mohammad Alimoradi/malimoradi@sport.uk.ac.ir How to obtain: Requests for access to data will be answered within a week Comments:
public Mohammad Alimoradi
Unit 6, Yekta residential complex, Fathalishahi 12 St, Kerman, Iran
Kerman Iran (Islamic Republic of) 7614816961 +98 34 2250 1685 malimoradi@sport.uk.ac.ir Shahid Bahonar University scientific Mohammad Alimoradi
Unit 6, Yekta residential complex, Fathalishahi 12 St, Kerman, Iran
Kerman Iran (Islamic Republic of) 7614816961 +98 34 2250 1685 malimoradi@sport.uk.ac.ir Shahid Bahonar University Iran (Islamic Republic of) Sex: Male Age range: 20 to 30 years Pain in the arc of motion (between 60 and 120 degrees) during shoulder flexion or extension. Positive Neer or Hawkins-Kennedy test. Pain during resisted external rotation, shoulder abduction, or positive Jobe test. Positive Apprehension-Relocation test (without posterior pain). 20 years 30 years Male History of shoulder surgery or dislocation. Currently receiving physiotherapy or medication treatment for the shoulder. Performed heavy exercises within 48 hours before the test. Lack of cooperation or withdrawal from continuing the study. Presence of other neuromuscular or musculoskeletal diseases affecting the shoulder (such as rheumatoid arthritis, rotator cuff tear). M75.4 Impingement syndrome of shoulder Rehabilitation Rehabilitation Rehabilitation Rehabilitation Intervention group: Athletes with shoulder impingement syndrome participating in a static stretching protocol. The protocol includes six targeted active soft-tissue stretches for the shoulder, with each stretch performed in 3 sets of 30 seconds, and 15 seconds of rest between sets. The total duration of the protocol is approximately 10 minutes. Intervention group: Athletes with shoulder impingement syndrome participating in a dynamic warm-up protocol. The protocol includes six dynamic exercises using a yellow resistance band, with each exercise performed for 10 repetitions at a speed of 2 seconds per repetition. Intervention group: Athletes with shoulder impingement syndrome who participate in the combined protocol. This protocol includes three exercises from the static stretching protocol and three exercises from the dynamic warm-up protocol, performed with the same timing and structure as the other groups. The exercises include: shoulder extension, deltoid stretch, scapular punch, pectoralis major stretch, throwing acceleration, and triceps stretch. Control group: Healthy athletes without symptoms of shoulder impingement syndrome who participate in all three intervention protocols (static stretching, dynamic warm-up, and a combination of static stretching and dynamic warm-up). This group is included for comparison of responses with the intervention groups (athletes with the condition). The order of protocol implementation is randomized, with a 72-hour interval between sessions. In the present study, the range of motion of internal and external rotation of the shoulder joint will be examined. Timepoint: At the beginning of the study (before the intervention), 5 minutes after the intervention, and one hour after the intervention. Method of measurement: It is measured using a goniometer. The present study investigates the stability of the shoulder joint. Timepoint: At the beginning of the study (before the intervention), 5 minutes after the intervention, and one hour after the intervention. Method of measurement: It is assessed using the Y test. The present study investigates the proprioception of the shoulder joint. Timepoint: At the beginning of the study (before the intervention), 5 minutes after the intervention, and one hour after the intervention. Method of measurement: It is evaluated using target angle reconstruction and photography. The present study examines isokinetic and isometric strength of the shoulder joint during internal and external rotation, assessed through concentric and eccentric contractions. Timepoint: At the beginning of the study (before the intervention), 5 minutes after the intervention, and one hour after the intervention. Method of measurement: It is evaluated using an isokinetic dynamometer. University of Guilan Approved 2025-05-19 Research Ethics Committees of University of Guilan 5th Kilometer of Persian Gulf Highway, Rasht, Guilan Province, Iran Rasht Guilan Iran (Islamic Republic of)