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CompletedNCT05548816Updated Mar 28, 2023

Prevalence of Subacromial Impingement Among Egyptian Swimmers

An observational study in Subacromial Impingement Syndrome, sponsored by Cairo University. Completed at 1 site in Egypt. Open to participants aged 12 Years to 25 Years. Per ClinicalTrials.gov, last updated 2023-03-28.

Sponsored by Cairo University · Observational

Study type
Observational
Model
Other
Time perspective
Cross-sectional
Enrollment
405
Ages
12 Years to 25 Years
Sex
All
01

Study summary

In the available literature, there are no prevalence studies that show the incidence of subacromial impingement in swimmers in Egypt, this should be considered as it's one of the most commonly reported injuries worldwide in swimmers. There are also no available studies to show the difference in incidence of subacromial impingement between both genders in Egypt. This study is attempting to remedy both research deficits and to reduce the literature gap and to show the prevalence rate of this injury among Egyptian swimmers in different age groups, to help prevent its widespread and to provide data for further investigations. This study would give the Egyptian swimming federation and the Ministry of youth and sports a clear idea about the prevalence rate of swimmer's shoulder at different ages in Egyptian swimmers. Most importantly, this study is to provide the physiotherapy community in Egypt data about this injury, the rate of prevalence and how to prevent it and hopefully would help in further future studies and also to apply it in different countries.

02

Conditions studied

  • Subacromial Impingement Syndrome

Keywords

  • Swimmers
  • Swimmer's shoulder
  • Subacromial impingement
03

In context

Shoulder Impingement Syndrome

304 studies on the registry are indexed under Shoulder Impingement Syndrome; 55 are open to participants now.

This study's enrollment of 405 is above the median of 60 across 39 observational studies indexed under Shoulder Impingement Syndrome.

Browse Shoulder Impingement Syndrome studies →

Lead sponsor

Cairo University is the lead sponsor of 4,780 studies on the registry; 1,427 are open to participants now.

Of its 36 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
12 Years to 25 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Egyptian swimmers , Age ranging from 12 - 25 as mentioned in the subgroups and this study will be taken as a one shot.

Swimmers will be collected from (Al-Ahly, Heliopolis, Shooting, El Shams, Al-zohour ,platinum , El-Nasr, Cairo ,Al-Maadi, Tala'ea Elgeish, Ittihad el shorta , El- Rowad ,Wadi-Degla, Shooting ,El Ghaba and El Geziera Sporting Clubs).

Inclusion criteria

  • 440 swimmers (males and females) , their age between 12 - 25.
  • Professional swimmers only.
  • Complain of anterior shoulder pain while swimming or elevation of shoulder.
  • BMI will be ranged from (18.5 - 24.9 kg/m2 ).
  • All swimmers are under supervision and psychologically, medically stable.
  • All swimmers received a good explanation of the questionnaire and the given study.

Exclusion criteria

Exclusion Criteria:

  • Any swimmer who refuse to participate in the study
  • Uncooperative swimmers.
  • Unprofessional swimmers.
  • Participants who play any other sports.
  • Exclude any previous traumatic lesion.
  • Exclude any form of shoulder instability.
  • Take any medication that affects pain perception as NSAIDS.
05

Study design

Observational model
Other
Time perspective
Cross-sectional
Enrollment
405 participants (actual)
Patient registry
No

Groups and cohorts

  • Subgroup (1) Male

    Includes swimmers from 12 to less than 14 years.

    Other: Handheld Dynamometer , Special tests and Modified DASH questionarre .

  • Subgroup (2) Male

    Includes swimmers from 14 to less than 16 years.

    Other: Handheld Dynamometer , Special tests and Modified DASH questionarre .

  • Subgroup (3): Male

    Includes swimmers 16 to less than 18 years.

    Other: Handheld Dynamometer , Special tests and Modified DASH questionarre .

  • Subgroup (4) Male

    Includes swimmers from 18 to less than 20 years

    Other: Handheld Dynamometer , Special tests and Modified DASH questionarre .

  • Subgroup (5) Male

    (1st Team) includes swimmers from 20 - 25 years.

    Other: Handheld Dynamometer , Special tests and Modified DASH questionarre .

  • Subgroup (1) Female

    Includes swimmers from 12 to less than 14 years.

    Other: Handheld Dynamometer , Special tests and Modified DASH questionarre .

  • Subgroup (2) Female

    Includes swimmers from 14 to less than 16 years.

    Other: Handheld Dynamometer , Special tests and Modified DASH questionarre .

  • Subgroup (3) Female

    Includes swimmers 16 to less than 18 years.

    Other: Handheld Dynamometer , Special tests and Modified DASH questionarre .

  • Subgroup (4) Female

    Includes swimmers from 18 to less than 20 years.

    Other: Handheld Dynamometer , Special tests and Modified DASH questionarre .

  • Subgroup (5) Female

    (1st Team) includes swimmers from 20 - 25 years.

    Other: Handheld Dynamometer , Special tests and Modified DASH questionarre .

Interventions

  • OtherHandheld Dynamometer , Special tests and Modified DASH questionarre .

    A mix of tools , special tests and questionarre to help in confirming the diagnosis of subacromial impingement.

    Also known as: Special tests ( Lift-off , Neers , Hawkins and kennedy tests), Modified DASH (Disabilities of the Arm, Shoulder, and Hand) questionarre .

06

What researchers measure

Primary outcomes

  1. External / lnternal rotation ratio

    Measured by Handheld dynamometer

    Time frame: 1 day

  2. Lift-off test

    This test is performed in a standing position, with the examiner observing and testing from standing behind the patient. To perform this test, the patient is asked to place the back of the affected arm (dorsum of the hand) in the mid lumbar spine area. The testing movement involves the patient performing internal rotation (IR), by lifting the hand off the back while the examiner places pressure on the hand. The test is considered to be positive if the patient cannot resist, lift the hand off the back or if she/he compensates by extending the elbow and shoulder.

    Time frame: 1 day

  3. Neers test

    Neer's sign In standing the patient's arm was passively elevated in the plane of the scapula while preventing rotation of the scapula. Reproduction of pain at the anterior edge of the acromion/lateral deltoid was considered a positive response for impingement.

    Time frame: 1 day

  4. Hawkins and kennedy test

    Hawkins and Kennedy test while sitting, with the elbow flexed to 90, the patient's shoulder was passively elevated to 90 in the sagittal plane and then forcefully rotated medially. Pain indicated a positive test result.

    Time frame: 1 day

  5. Modified QuickDASH questionarre result

    The QuickDASH is scored in two components: the disability/symptom section (11 items, scored 1-5) and the optional high performance sport/music or work modules (4 items, scored 1-5) .For Example in the disability / symptoms sections , at least 10 of the 11 items must be completed for a score to be calculated. The assigned values for all completed responses are simply summed and averaged, producing a score out of five.This value is then transformed to a score out of 100 by subtracting one and multiplying by 25 , measures scaled on a 0-100 scale. A higher score indicates greater disability.

    Time frame: 1 day

07

Study locations

1 site
  • Nutrilife clinic
    Cairo, 11375, Egypt
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 28, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05548816
Lead sponsor
Cairo University
Responsible party
Morog Galal Nadim (Principal investigator, Cairo University) — Principal investigator
First posted
Sep 21, 2022
Start date
Aug 30, 2022
Primary completion
Dec 31, 2022
Completion
Jan 20, 2023
Last update
Mar 28, 2023

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Mar 2023. You cannot join it, but the record below documents what was studied.

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