Sport InjuryBADIRMSNCT04361539
Shoulder Muscle Imbalance as a Risk for Shoulder Injury in Elite Adolescent Badminton Players
An observational study of Sport Injury and Shoulder Injuries, run by University Hospital, Caen at 1 site in France.
Trial summary
Background: To assess the impact of pre-season clinical measures and rotator muscles strength on the risk of significant shoulder injury (SSI) in elite adolescent badminton players Design: Prospective cohort study Participants: Nine elite adolescents badminton players were included and followed from September 2018 to… Read more about this study
- Who is it for?
- Any ageHealthy volunteers can take part
- Conditions the study is for
- Sport Injury, Shoulder Injuries
- How many people
- 9 participants
- Where
- 1 siteFrance
- Study dates
- 5 Aug 2018to 15 Jul 2019
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- Healthy volunteers accepted
- Child, Adult, Older adult
Study population: The population was all the elite adolescent badminton players from a high-level club
Who may be able to join
- All the elite adolescent badminton players from a high-level club.
Who cannot join
- Players who had SSI in the 3 months prior to the isokinetic test or had shoulder surgery
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Shoulder Muscle Imbalance as a Risk for Shoulder Injury in Elite Adolescent Badminton Players : a Prospective Pilot Study
Background: To assess the impact of pre-season clinical measures and rotator muscles strength on the risk of significant shoulder injury (SSI) in elite adolescent badminton players Design: Prospective cohort study Participants: Nine elite adolescents badminton players were included and followed from September 2018 to May 2019.
Independent variables: A pre-season visit consisted in clinical and isokinetic shoulder strength testing. Isokinetic internal and external rotator shoulder muscles strength was tested at 60, 120 and 240°/s. Conventional and functional (eccentric-to-concentric) ratios (FR) were calculated. SSI collection was performed by an experienced sport physician.
- Conditions
- Sport Injury, Shoulder Injuries
- Medical subject headings
- Shoulder Injuries
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Elite adolescent badminton players | The population was all the elite adolescent badminton players from a high-level club. We excluded players who had SSI in the 3 months prior to the isokinetic test or had shoulder surgery. They were included and followed from September 2018 to May 2019. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change from Baseline Isokinetic strength testing (peak torques) at 8 months
Shoulder rotator muscles isokinetic strength test, Measures: Peak Torque on internal rotator muscles (IR) and external rotator muscles (ER), in NM (newton.meter)
Measured: Two evaluations, one preseason (september 2018) and one postseason (may 2019) visits
Change from Baseline Isokinetic strength testing (ratios) at 8 months
Shoulder rotator muscles isokinetic strength test, Measures: ratios between external rotator muscles (ER) and internal rotator muscles (IR) (ER:IR), in percent (%)
Measured: Two evaluations, one preseason (september 2018) and one postseason (may 2019) visits
Clinical measurements, ROM
Shoulder internal and external rotation range of motion (ROM)
Measured: One evaluation, one preseason visit (september 2018)
Clinical measurements TAD
table-to-acromion distance (in cm)
Measured: One evaluation, one preseason visit (september 2018)
Significant Shoulder Injury (SSI) collection (number of injury)
Significant Shoulder Injury (SSI) collection for the number of injury
Measured: During the badminton season, the number (number, n) of injury was recorded from september 2018 to may 2019
Significant Shoulder Injury (SSI) collection (type of injury)
Significant Shoulder Injury (SSI) collection for the type of injury
Measured: During the badminton season, the type of injury (number, n) was recorded from september 2018 to may 2019
Significant Shoulder Injury (SSI) collection (time lost from participation)
Significant Shoulder Injury (SSI) collection for time lost from participation due to the injury
Measured: During the badminton season, the time lost from participation was recorded (in days) from september 2018 to may 2019
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Apr 2020
- Study start5 Aug 2018
- Primary completion1 Sep 2018
- Study completion15 Jul 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Sport InjuryStudies of the same condition, open and under way.
- More trials run by University Hospital, CaenThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 9 participants (actual)
Sponsor and investigators
- Lead sponsor
- University Hospital, Caen
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Joffrey DRIGNY, MD MSc, Principal investigator, CHU Caen Normandy
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04361539
- Sponsor's protocol ID
- BADIRMS
- Acronym
- BADIRMS
- Status last verified
- Apr 2020
- First submitted
- 20 Apr 2020
- Last updated
- 26 Mar 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 26 Mar 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Shoulder Muscle Imbalance as a Risk for Shoulder Injury in Elite Adolescent Badminton Players : a Prospective Pilot Study
- ClinicalTrials.gov ID
- NCT04361539
- Acronym / sponsor ID
- BADIRMS / BADIRMS
- Conditions
- Sport Injury, Shoulder Injuries
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 9 participants (actual)
- Lead sponsor
- University Hospital, CaenUniversity, hospital or other
- Study start
- 5 Aug 2018 (actual)
- Primary completion
- 1 Sep 2018 (actual)
- Study completion
- 15 Jul 2019 (actual)
- First posted
- 24 Apr 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Background: To assess the impact of pre-season clinical measures and rotator muscles strength on the risk of significant shoulder injury (SSI) in elite adolescent badminton players Design: Prospective cohort study Participants: Nine elite adolescents badminton players were included and followed from September 2018 to May 2019.
Independent variables: A pre-season visit consisted in clinical and isokinetic shoulder strength testing. Isokinetic internal and external rotator shoulder muscles strength was tested at 60, 120 and 240°/s. Conventional and functional (eccentric-to-concentric) ratios (FR) were calculated. SSI collection was performed by an experienced sport physician.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Elite adolescent badminton players | – | –The population was all the elite adolescent badminton players from a high-level club. We excluded players who had SSI in the 3 months prior to the isokinetic test or had shoulder surgery. They were included and followed from September 2018 to May 2019. |
Who may qualify
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult, Older adult
- Study population
- The population was all the elite adolescent badminton players from a high-level club
Key inclusion criteria (1 listed)
- All the elite adolescent badminton players from a high-level club.
Key exclusion criteria (1 listed)
- Players who had SSI in the 3 months prior to the isokinetic test or had shoulder surgery
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Change from Baseline Isokinetic strength testing (peak torques) at 8 months
Time frame: Two evaluations, one preseason (september 2018) and one postseason (may 2019) visits
Shoulder rotator muscles isokinetic strength test, Measures: Peak Torque on internal rotator muscles (IR) and external rotator muscles (ER), in NM (newton.meter)
Change from Baseline Isokinetic strength testing (ratios) at 8 months
Time frame: Two evaluations, one preseason (september 2018) and one postseason (may 2019) visits
Shoulder rotator muscles isokinetic strength test, Measures: ratios between external rotator muscles (ER) and internal rotator muscles (IR) (ER:IR), in percent (%)
Clinical measurements, ROM
Time frame: One evaluation, one preseason visit (september 2018)
Shoulder internal and external rotation range of motion (ROM)
Clinical measurements TAD
Time frame: One evaluation, one preseason visit (september 2018)
table-to-acromion distance (in cm)
Significant Shoulder Injury (SSI) collection (number of injury)
Time frame: During the badminton season, the number (number, n) of injury was recorded from september 2018 to may 2019
Significant Shoulder Injury (SSI) collection for the number of injury
Significant Shoulder Injury (SSI) collection (type of injury)
Time frame: During the badminton season, the type of injury (number, n) was recorded from september 2018 to may 2019
Significant Shoulder Injury (SSI) collection for the type of injury
Significant Shoulder Injury (SSI) collection (time lost from participation)
Time frame: During the badminton season, the time lost from participation was recorded (in days) from september 2018 to may 2019
Significant Shoulder Injury (SSI) collection for time lost from participation due to the injury
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Mar 2025.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Joffrey DRIGNY, MD MSc principal investigator
CHU Caen Normandy
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Sport Injury and Shoulder Injuries, run by University Hospital, Caen at 1 site in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 26 Mar 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change from Baseline Isokinetic strength testing (peak torques) at 8 months (time frame: Two evaluations, one preseason (september 2018) and one postseason (may 2019) visits). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Mar 2025.