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NCT Number: NCT07593963

Relation Between Scapular Dyskinesia, Rotator Cuff Strength And Subacromial Space In Asymptomatic Scapular Dyskinesia

This study will be conducted to investigate the relationship between scapular dyskinesia and rotator cuff muscle strength and acromiohumeral distance in asymptomatic individuals.

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Key information

Conditions

Age range

18 year–40 year

Sex eligibility

All sexes

Study type

Observational

About this study

When the scapula moves in an abnormal way, a condition known as scapular dysfunction (SD) occurs, leading to shoulder pain and dysfunction. It is possible for patients with SD to experience no symptoms at all. SD symptoms can include a combination of the following anterior shoulder pain, Posterosuperior scapular pain, Superior shoulder pain, shoulder impingement syndrome, rotator cuff dysfunction, and shoulder instability.Things like early scapular elevation, abrupt downward rotation, and a prominent medial edge and inferior angle of the scapula are seen during shoulder motions. It has been suggested that impaired scapulothoracic musculature function might lead to changes in shoulder kinematics, which in turn can increase the risk of injury.Individuals with SD often experience pathologies such as scapula-humeral rhythm disturbance, glenoid labrum difficulties, glenohumeral instability, rotator cuff syndrome, subacromial impingement syndrome, and glenoid labrum abnormalities. In individuals suffering from RC tendinopathy, a decline in RC muscle performance is associated with lower health-related quality of life and patient-rated function. In order to determine which patients with scapular dyskinesis may benefit most from a rehabilitation program aimed at enhancing muscular performance, clinicians may find it useful to gather data on shoulder strength. A portable dynamometer is an easy, cheap, and valid way to get these kinds of data. to fill that gap in literature by Finding an association between scapular dyskinesia and the acromiohumeral distance and rotator cuff muscle strength in individuals with asymptomatic scapular dyskinesia

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Both genders.
  • Those experiencing asymptomatic scapular dyskinesia
  • The average age of the population ranges from eighteen to forty years.
  • Individuals who showed appositive result on lateral scapular slide test and with a visual-based palpation method
  • Type 2 and 3 scapular dyskinesia

Exclusion criteria

  • any type of injury or pain affecting the neck, shoulders, or cervical region
  • Participating in any form of formal athletic training or fitness program with their express written approval
  • If they had previously suffered an injury to their upper limbs, such as a dislocation, fracture, or strain

Treatment and study plan

asymptomatic scapular dyskinesia group

Other

From both genders, fifty-one asymptomatic scapular dyskinesia subjects were included in this group. their ages from eighteen to forty years. Subjects showed an opposite result on the lateral scapular slide test.

Primary outcomes

  1. subacromial space

    Time frame: up to one day

    The subacromial space will be measured by ultrasonography device with mm or cm. it was defined as the linear perpendicular distance between the top surface of the humeral head and the lower surface of the acromion

Secondary outcomes

  1. shoulder internal rotator muscles strength

    Time frame: up to one day

    shoulder internal rotator muscles strength will be measured by active force 2 device

  2. shoulder external rotator muscles strength

    Time frame: up to one day

    shoulder external rotator muscles strength will be measured by the Active Force 2 device

  3. scapular dyskinesis

    Time frame: up to one day

    lateral scapular slide test (LSST) will be used to assess scapular dyskinesis. examined the distance between the scapular inferior angle and the corresponding spinous process in three different positions using the lateral scapular slide test (LSST) to evaluate scapular stability in both the right and left scapula. The subject's arms were relaxed at his sides, lying on his hips, with his shoulders internally rotated and abducted 45 degrees, and fully internally rotated and abducted 90 degrees.Kibler has stated that a 1.5 cm discrepancy on both sides should be considered abnormal scapular asymmetry.

Study contacts

Contact information is provided by the study sponsor or research team.

Aya mostafa, master

CONTACT

[email protected]

01142667586

Sponsors and collaborators

Lead sponsor

Cairo University

Other

Registry information

Acronym: ASD

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
May 18, 2026
Registry last updated
May 20, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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