Groin InjuriesNCT07410273
Screening of Adductor Related Symptoms in Adolescent Taekwondo Athletes
An observational study of Groin Injuries and Adductor Strains, run by Izmir Democracy University at 1 site in Turkey (Türkiye).
Trial summary
The goal of this observational study is to learn about the frequency and characteristics of adductor-related groin symptoms in adolescent Taekwondo athletes aged 12-17 years. The main questions it aims to answer are: How common are adductor-related groin symptoms in adolescent Taekwondo athletes? Do athletes with… Read more about this study
- Who is it for?
- Ages 12 to 17 yearsHealthy volunteers can take part
- Conditions the study is for
- Groin Injuries, Adductor Strains
- How many people
- 80 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 15 Oct 2025to 25 Jan 2026
- How long will I take part?
- 7 Days
- 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 12 to 17 years
- All sexes
- Healthy volunteers accepted
- Child
Study population: The study population consisted of adolescent Taekwondo athletes aged 12 to 17 years who are actively training at the Göztepe Sports Club, İzmir, Türkiye. All participants held a black belt (professional level) and have at least three years of competitive Taekwondo experience with regular training sessions at least five times per week. Two groups formed: Symptomatic Group: Athletes who report groin pain or discomfort during training and show positive results on clinical tests for adductor-related groin symptoms (resisted adduction and palpation tests). Asymptomatic Control Group: Age-, sex-, and activity-matched athletes without groin pain or any lower extremity symptoms, who test negative on all clinical examinations. All participants are screened by a physiotherapist for eligibility prior to data collection.
Inclusion Criteria: Participants must meet all of the following criteria to be eligible for inclusion:
- Aged between 12 and 17 years.
- Registered as an active Taekwondo athlete at a Sports Club.
- Holds a black belt level (professional) in Taekwondo.
- Has at least 3 years of professional Taekwondo training experience.
- Participates in training sessions at least 5 days per week.
- Able to participate in regular training and competition without restriction.
- Voluntarily agrees to participate and provides informed consent (and parental consent for minors).
Exclusion Criteria: Participants are excluded if they meet any of the following criteria:
- Presence of any orthopedic, neurological, or systemic condition that may affect lower limb function or limit participation in training.
- History of lower extremity surgery (hip, knee, ankle, or foot).
- Current or recent (within the last 6 months) acute lower extremity injury other than groin-related symptoms.
- Refusal or inability to complete the required clinical tests or questionnaires.
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Izmir Democracy University
Izmir, İzmir, 35290
About this study
Official title: Screening of Adductor-Related Symptoms and Comparison of Hip Muscle Strength, Range of Motion, and Functional Level Between Symptomatic and Asymptomatic Adolescent Taekwondo Athletes
The goal of this observational study is to learn about the frequency and characteristics of adductor-related groin symptoms in adolescent Taekwondo athletes aged 12-17 years. The main questions it aims to answer are:
How common are adductor-related groin symptoms in adolescent Taekwondo athletes?
Read more
Do athletes with these symptoms show differences in hip strength, joint range of motion, or functional level compared to athletes without symptoms?
Participants will complete a brief screening about their groin pain and training habits, followed by:
Clinical tests of the hip and groin region (resisted adduction, palpation, FABER, and FADIR tests)
Strength testing of hip abductor and adductor muscles using a hand-held dynamometer
Range of motion measurements of the hip using a goniometer
A self-reported questionnaire (Copenhagen Hip and Groin Outcome Score - HAGOS) to assess daily activity and sports function
Data from this study will help identify early signs of adductor-related groin problems and guide preventive and rehabilitation strategies for young Taekwondo athletes
- Conditions
- Groin Injuries, Adductor Strains
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 |
|---|---|---|
| Symptomatic Group (Adductor-Related Groin Pain Group) | This group will include adolescent Taekwondo athletes aged 12-17 years who report groin pain or discomfort during training and test positive for adductor-related symptoms based on the Doha classification framework. Diagnosis of adductor-related groin pain will be confirmed through: Resisted adduction test (pain provocation) Palpation of adductor muscles and tendons Participants in this group will undergo hip strength, range of motion, and functional assessments. | |
| Asymptomatic Control Group (Healthy Control Group) | This group will include age-, sex-, and activity-matched adolescent Taekwondo athletes who do not report groin pain or any lower extremity injury and test negative on the clinical provocation tests (resisted adduction, palpation, FABER, FADIR). They will undergo the same measurements as the symptomatic group for comparison. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Prevalence of Adductor-Related Groin Symptoms
The presence of adductor-related groin symptoms will be assessed using standardized clinical tests (resisted adduction test and adductor palpation test) based on the Doha classification framework.
Unit of Measure: Percentage of athletes with positive test results (%)
Purpose: To determine how common adductor-related groin symptoms are among adolescent Taekwondo athletes.
Type: Categorical (Yes/No)
Measured: at baseline
Pain Intensity
Pain intensity during resisted adduction will be evaluated using a Numeric Pain Rating Scale (NPRS; 0-10).
Unit of Measure: Points (0-10 scale). Higher points indicates severe pain.
Purpose: To quantify the severity of pain in athletes with adductor-related symptoms.
Measured: at baseline
Secondary outcomes (6)
Isometric Hip Adductor Strength
Measured bilaterally using a hand-held dynamometer (K-Force, K-Invent) in supine position. Participants will perform maximal isometric contraction for 3 seconds with the dynamometer placed 8 cm proximal to the medial malleolus.
Unit of Measure: Newton (N)
Purpose: To assess isometric strength of hip adductor muscles and compare between groups.
Type: Continuous
Measured: at baseline
Isometric Hip Abductor Strength
Measured using a hand-held dynamometer (K-Force, K-Invent) in supine position; dynamometer placed 8 cm proximal to the lateral malleolus.
Unit of Measure: Newton (N)
Purpose: To evaluate isometric abductor strength and assess potential strength imbalance with adductors.
Measured: at baseline
Eccentric Hip Adductor Strength
Measured bilaterally using a hand-held dynamometer in side-lying position (tested leg below). The "break test" method will be applied, and the peak eccentric force recorded.
Unit of Measure: Newton (N)
Purpose: To assess eccentric adductor strength, which is a key predictor of groin injury risk.
Measured: at baseline
Eccentric Hip Abductor Strength
Measured bilaterally using a hand-held dynamometer in side-lying position (tested leg on top). The examiner applies a downward force to induce controlled eccentric contraction.
Unit of Measure: Newton (N)
Purpose: To determine eccentric hip abductor strength and evaluate abductor-adductor strength balance.
Measured: at baseline
Hip Range of Motion (Abduction and Internal Rotation)
Abduction: Measured in supine position using a goniometer.
Internal rotation: Measured in prone position with knee flexed to 90°.
Unit of Measure: Degrees (°)
Purpose: To evaluate and compare hip mobility between symptomatic and asymptomatic athletes.
Measured: at baseline
Functional Level (Self-Reported)
Evaluated using the Turkish validated version of the Copenhagen Hip and Groin Outcome Score (HAGOS), which includes 6 subscales: symptoms, pain, daily living, sports/recreation, participation, and quality of life.
Unit of Measure: Score (0-100; higher scores = better function)
Purpose: To assess the self-reported functional impact of hip and groin symptoms.
Measured: at baseline
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Feb 2026
- Study start15 Oct 2025
- Primary completion15 Jan 2026
- Study completion25 Jan 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Groin InjuriesStudies of the same condition, open and under way.
- 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
- Case-control
- Time perspective
- Cross-sectional
- Enrolment
- 80 participants (actual)
- Target duration
- 7 Days
Sponsor and investigators
- Lead sponsor
- Izmir Democracy University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Ezgi Ünüvar Yüksel, Izmir Democracy University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07410273
- Sponsor's protocol ID
- FTREK25/111
- Status last verified
- Feb 2026
- First submitted
- 2 Feb 2026
- Last updated
- 13 Feb 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 13 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Screening of Adductor-Related Symptoms and Comparison of Hip Muscle Strength, Range of Motion, and Functional Level Between Symptomatic and Asymptomatic Adolescent Taekwondo Athletes
- ClinicalTrials.gov ID
- NCT07410273
- Acronym / sponsor ID
- FTREK25/111
- Conditions
- Groin Injuries, Adductor Strains
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 80 participants (actual)
- Lead sponsor
- Izmir Democracy UniversityUniversity, hospital or other
- Study start
- 15 Oct 2025 (actual)
- Primary completion
- 15 Jan 2026 (actual)
- Study completion
- 25 Jan 2026 (actual)
- First posted
- 13 Feb 2026 (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.
The goal of this observational study is to learn about the frequency and characteristics of adductor-related groin symptoms in adolescent Taekwondo athletes aged 12-17 years. The main questions it aims to answer are:
How common are adductor-related groin symptoms in adolescent Taekwondo athletes?
Do athletes with these symptoms show differences in hip strength, joint range of motion, or functional level compared to athletes without symptoms?
Participants will complete a brief screening about their groin pain and training habits, followed by:
Clinical tests of the hip and groin region (resisted adduction, palpation, FABER, and FADIR tests)
Strength testing of hip abductor and adductor muscles using a hand-held dynamometer
Range of motion measurements of the hip using a goniometer
A self-reported questionnaire (Copenhagen Hip and Groin Outcome Score - HAGOS) to assess daily activity and sports function
Data from this study will help identify early signs of adductor-related groin problems and guide preventive and rehabilitation strategies for young Taekwondo athletes
Study design
- Observational model
- Case-control
- Time perspective
- Cross-sectional
- Target follow-up
- 7 Days
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Symptomatic Group (Adductor-Related Groin Pain Group) | – | –This group will include adolescent Taekwondo athletes aged 12-17 years who report groin pain or discomfort during training and test positive for adductor-related symptoms based on the Doha classification framework. Diagnosis of adductor-related groin pain will be confirmed through: Resisted adduction test (pain provocation) Palpation of adductor muscles and tendons Participants in this group will undergo hip strength, range of motion, and functional assessments. |
| Asymptomatic Control Group (Healthy Control Group) | – | –This group will include age-, sex-, and activity-matched adolescent Taekwondo athletes who do not report groin pain or any lower extremity injury and test negative on the clinical provocation tests (resisted adduction, palpation, FABER, FADIR). They will undergo the same measurements as the symptomatic group for comparison. |
Who may qualify
- Ages
- 12 to 17 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
- Study population
- The study population consisted of adolescent Taekwondo athletes aged 12 to 17 years who are actively training at the Göztepe Sports Club, İzmir, Türkiye. All participants held a black belt (professional level) and have at least three years of competitive Taekwondo experience with regular training sessions at least five times per week. Two groups formed: Symptomatic Group: Athletes who report groin pain or discomfort during training and show positive results on clinical tests for adductor-related groin symptoms (resisted adduction and palpation tests). Asymptomatic Control Group: Age-, sex-, and activity-matched athletes without groin pain or any lower extremity symptoms, who test negative on all clinical examinations. All participants are screened by a physiotherapist for eligibility prior to data collection.
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
Prevalence of Adductor-Related Groin Symptoms
Time frame: at baseline
The presence of adductor-related groin symptoms will be assessed using standardized clinical tests (resisted adduction test and adductor palpation test) based on the Doha classification framework. Unit of Measure: Percentage of athletes with positive test results (%) Purpose: To determine how common adductor-related groin symptoms are among adolescent Taekwondo athletes. Type: Categorical (Yes/No)
Pain Intensity
Time frame: at baseline
Pain intensity during resisted adduction will be evaluated using a Numeric Pain Rating Scale (NPRS; 0-10). Unit of Measure: Points (0-10 scale). Higher points indicates severe pain. Purpose: To quantify the severity of pain in athletes with adductor-related symptoms.
6 secondary outcomes
Isometric Hip Adductor Strength
Time frame: at baseline
Isometric Hip Abductor Strength
Time frame: at baseline
Eccentric Hip Adductor Strength
Time frame: at baseline
Eccentric Hip Abductor Strength
Time frame: at baseline
Hip Range of Motion (Abduction and Internal Rotation)
Time frame: at baseline
Functional Level (Self-Reported)
Time frame: at baseline
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 13 Feb 2026.
- Individual participant dataSharing planned: No
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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.
The record lists no contact. Use the official record to reach the sponsor.
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 Groin Injuries and Adductor Strains, run by Izmir Democracy University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
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 13 Feb 2026. 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 Turkey (Türkiye). 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?
Prevalence of Adductor-Related Groin Symptoms (time frame: at baseline). The study lists 2 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 13 Feb 2026.