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The effect of rotator cuff retraining and vibration exercises on various shoulder and scapular components in handball players with shoulder impingement syndrome.

The impact of six weeks of combined rotator cuff retraining exercises with vibration exercises on pain, strength ratio, proprioception, grip strength, and scapular kinematics in handball players with shoulder impingement syndrome.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT20200314046777N1
Enrollment
45
Registered
2024-07-07
Start date
2024-08-15
Completion date
Unknown
Last updated
2024-07-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Shoulder Impingement syndrome. Impingement syndrome of shoulder

Interventions

Intervention 1: Intervention group: rotator cuff retraining exercises for 6 weeks (3 sessions per week and each session lasts 60 minutes).The goal of utilizing rotator cuff exercises is to restore mu

Sponsors

Islamic Azad University
Lead Sponsor

Eligibility

Sex/Gender
Male
Age
20 Years to 32 Years

Inclusion criteria

Inclusion criteria: Normal Body Mass Index (BMI):Having a BMI within the normal range. Membership in Provincial Teams: . 2.ctive membership in one of the provincial-level teams for at least the past three years. 3.A Presence of Activity-Limiting Pain: Having pain that has limited sports activity for more than a week or requires treatment. 4. Pain Score Between 3 to 7 out of 10:Having a pain score between 3 to 7 out of 10 5. Occurrence of Shoulder Pain in the Subacromial Region: Experiencing pain in the subacromial region of the shoulder. 6. Presence of Impingement Syndrome Symptoms: Symptoms of impingement syndrome, including recurrent shoulder pain with overhead arm movements accompanied by shoulder rotation. 7. Average Duration of Syndrome Symptoms: The average duration of syndrome symptoms is 16 months (range of 4 to 36 months).

Exclusion criteria

Exclusion criteria: 1.History of Neck and Arm Pain:The individual has a history of neck and arm pain in the past or present.... 2.Previous Shoulder Impact Injury:The individual has had a previous impact injury in the shoulder area 3.Neurological Diseases:The individual has neurological diseases 4.Referred Pain from Cervical and Thoracic Spine:The individual has referred pain from the cervical and thoracic spine. 5.Shoulder Joint Instability:The individual has instability in the shoulder joint 6..Use of Glucocorticoids:The individual has had a glucocorticoid injection in the shoulder in the past three months 7.Undergoing Other Treatments:The individual is undergoing other treatments to reduce pain and improve function.

Design outcomes

Primary

MeasureTime frame
Pain. Timepoint: Before and after 6 weeks. Method of measurement: Pain in the calf is measured using a visual analog scale (VAS). A 100 mm line is drawn where 0 indicates no pain and 10 represents the maximum pain intensity. Participants mark their level of pain over the past 24 hours by placing stickers on the line corresponding to their perceived pain intensity. The distance in millimeters from the starting point to the sticker is measured to quantify the pain intensity. Measurements in the range of 0-10 mm indicate no pain, 10-30 mm indicate mild pain, 40-60 mm indicate moderate pain, and 70-100 mm indicate severe pain.;Strength. Timepoint: Before and after 6 weeks. Method of measurement: Position the subject comfortably with the shoulder in a standardized position (e.g., 90 degrees shoulder abduction and 90 degrees elbow flexion). Place the dynamometer next to the wrist or hand to prevent unnecessary movements during the test. The subject performs a maximal voluntary contraction (MVC) of the shoulder rotator muscles (e.g., internal or external rotation). The dynamometer records the peak force generated during the contraction, providing a quantitative measure of muscle strength.;Grip Strength. Timepoint: Before and after 6 weeks. Method of measurement: To measure grip strength using a hand dynamometer, the subject should stand with their head in a neutral position, looking straight ahead, and hold the dynamometer's handle. To adjust the dynamometer handle, the subject is instructed to position the angle between the second and third phalanges of the middle finger vertically. For the test, the subject may position their forearm at any angle from 90 to 180 degrees, while the entire arm should hang down and be perpendicular to the ground. The examiner will instruct the subject using four commands (Ready, Start, Squeeze as hard as you can, and Stop). Two consecutive trials will be performed for each hand, with a one-minute rest between each trial. The examiner will re

Countries

Iran (Islamic Republic of)

Contacts

Public ContactMojtaba Babaei

Isfahan University of Technology

Babaei@iut.ac.ir+98 31 3391 2511

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026