Groin InjuryNCT06557577
Comparing an Adductor Fatigue Strength Test with Handheld Dynamometry
An observational study of Groin Injury and Groin Strain, run by University of Oviedo at 1 site in Spain.
Trial summary
The strength of the adductor muscles in a population of federated athletes will be measured using two tests: First, the maximum strength test, utilizing handheld dynamometry. Subsequently, endurance strength will be measured with the Adductor Fatigue Test (Brazilian Adductor Performance Test), in order to evaluate a… Read more about this study
- Who is it for?
- Ages 18 to 40 yearsHealthy volunteers can take part
- Conditions the study is for
- Groin Injury, Groin Strain
- How many people
- 150 participants
- Where
- 1 siteSpain
- Study dates
- 11 Sep 2024to 6 Feb 2025
- 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 18 to 40 years
- All sexes
- Healthy volunteers accepted
- Adult
Study population: Competitive athletes without groin injury in the last 3 months.
Who may be able to join
- Having an active lifestyle
- Competing at any level in a federated sports discipline.
Who cannot join
- Not consenting to participate in the research.
- Being unable to understand or write in Spanish.
- Having sustained any type of injury to the inguinal musculature in the past 3 months.
Trial locations and contacts
1 site in 1 country.
Spain1 site
Escuela Profesional de Medicina de la Educación Fisica y el Deporte
Oviedo, Principality of Asturias, 33007
About this study
Official title: Evaluation of Hip Muscle Strength: Utility of an Adductor Fatigue Test to Substitute Handheld Dynamometry
The strength of the adductor muscles in a population of federated athletes will be measured using two tests: First, the maximum strength test, utilizing handheld dynamometry. Subsequently, endurance strength will be measured with the Adductor Fatigue Test (Brazilian Adductor Performance Test), in order to evaluate a possible correlation between the two tests.
Read the detailed description
The strength of the adductor muscles in a population of federated athletes will be measured using two tests: First, the maximum strength test, utilizing dynamometry, where the subject will perform a maximal isometric contraction against the resistance provided by the investigator. Subsequently, endurance strength will be measured with the Adductor Fatigue Test (Brazilian Adductor Performance Test), the participant must perform an adductor exercise as many repetitions as possible until exhaution. In order to evaluate a possible correlation between the two tests and thus, by performing one of them, obtain the results of the other variable.
Apart from the strength measurements, democraphic caracteristics will be recorded to assess possible correlations between studied variables.
- Conditions
- Groin Injury, Groin Strain
- Being tested
- No intervention group.
- Keywords
- Injury prevention, Strength assessment
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
No intervention group.Other
There is no intervention group.
| Study group | Role | What they receive |
|---|---|---|
| Healthy athletes | Competitive athletes without any groin injury. Receives: Other: No intervention group. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Maximal adductor strength
Measuring the maximum strength of the adductor musculature, performed manually by a physiotherapist using a dynamometer over a brief working period. To begin the test, the subject should lie in a supine position on a flat surface. Their hip should be positioned at a 0º angle in our case. Ideally, at least three measurements should be taken, including a brief rest (~30 seconds) between each repetition to minimize muscle fatigue.
The dynamometer should be placed between both ankles of the patient, with the forearm of the analyzing physiotherapist positioned in the middle as resistance. The patient should exert as much pressure as possible against the dynamometer, which is held by the physiotherapist, and against the physiotherapist's elbow, as if trying to close their legs like scissors, using their adductor muscles and maintaining the contraction for 5 seconds.
Measured: September to December (2024)
Adductor fatigue strength test
The individual will begin by assuming a side plank position, supported by the elbow, bent, and the forearm (lower arm) on the ground. The hand of the supporting arm is placed on the waist of the side of the lower limb that is to be evaluated (the highest). The evaluated limb is supported by a 0.5-meter high bench at the ankle region, while the opposite limb does not touch the ground, remaining in a semi-flexed position. The subject must control the descent of the pelvis by performing a hip abduction until the pelvis lightly touches the ground, and then return to the initial position by raising the pelvis again. The score is defined as the maximum number of repetitions completed before reaching muscle failure. During the test, participants are instructed to keep both legs parallel and to ensure that the knee of the non-evaluated leg remains in a semi-flexed position. Maintaining the correct alignment of the trunk throughout the exercise is crucial.
Measured: September to December (2024)
Secondary outcomes (7)
Weight
Weight (kg)
Measured: September to December (2024)
Hip and groin outcome score (HAGOS)
A questionnaire will be given to every participant to obtain information on groin pain symptoms in the last week. Minimum: 0; Maximum: 100. Higher scores mean better hip and groin health.
Measured: September to December (2024)
Age
Age (in years)
Measured: September to December (2024)
Sex
Biological sex
Measured: September to December (2024)
Leg length
Leg length (in cm from the anterior superior iliac spine to the medial malleoulus)
Measured: September to December (2024)
Height
Height (in cm)
Measured: September to December (2024)
Previous groin injury.
Previous groin injury (in the last 3 months)
Measured: September to December (2024)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Aug 2024
- Study start11 Sep 2024
- Primary completion5 Feb 2025
- Study completion6 Feb 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Groin InjuryStudies 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
- Other
- Time perspective
- Cross-sectional
- Enrolment
- 150 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Oviedo
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Hugo Olmedillas Fernandez, University of Oviedo
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06557577
- Sponsor's protocol ID
- UO2024/01
- Status last verified
- Feb 2025
- First submitted
- 3 Aug 2024
- Last updated
- 11 Feb 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
de Queiroz JHM, Frota JP, Dos Reis FA, de Oliveira RR. Development and Predictive Validation of the Brazilian Adductor Performance Test for Estimating the Chance of Hip Adductor Injuries in Elite Soccer Athletes. Int J Sports Physiol Perform. 2023 Apr 20;18(6):653-659. doi: 10.1123/ijspp.2022-0306. Print 2023 Jun 1.
PubMed 37080542Robaina BQ, Medeiros DM, Roberti LS, Franke RA, Baroni BM. The Single Leg Bridge Test does not replace handheld dynamometer hamstring tests in a clinical setting. Phys Ther Sport. 2023 Sep;63:126-131. doi: 10.1016/j.ptsp.2023.08.001. Epub 2023 Aug 6.
PubMed 37573852Quintana-Cepedal M, Bailen-Garcia T, Riestra-Cendan S, Crespo I, Olmedillas H. Sex Differences in Maximal and Endurance Adductor Strength: Implications for Athlete Screening and Return to Play. J Strength Cond Res. 2026 Jul 1. doi: 10.1519/JSC.0000000000005577. Online ahead of print.
PubMed 42384830
Study at a glance
From the registry record, last updated by the sponsor on 11 Feb 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of Hip Muscle Strength: Utility of an Adductor Fatigue Test to Substitute Handheld Dynamometry
- ClinicalTrials.gov ID
- NCT06557577
- Acronym / sponsor ID
- UO2024/01
- Conditions
- Groin Injury, Groin Strain
- Keywords
- Injury prevention, Strength assessment
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 150 participants (actual)
- Lead sponsor
- University of OviedoUniversity, hospital or other
- Study start
- 11 Sep 2024 (actual)
- Primary completion
- 5 Feb 2025 (actual)
- Study completion
- 6 Feb 2025 (actual)
- First posted
- 16 Aug 2024 (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 strength of the adductor muscles in a population of federated athletes will be measured using two tests: First, the maximum strength test, utilizing handheld dynamometry. Subsequently, endurance strength will be measured with the Adductor Fatigue Test (Brazilian Adductor Performance Test), in order to evaluate a possible correlation between the two tests.
Detailed description
The strength of the adductor muscles in a population of federated athletes will be measured using two tests: First, the maximum strength test, utilizing dynamometry, where the subject will perform a maximal isometric contraction against the resistance provided by the investigator. Subsequently, endurance strength will be measured with the Adductor Fatigue Test (Brazilian Adductor Performance Test), the participant must perform an adductor exercise as many repetitions as possible until exhaution. In order to evaluate a possible correlation between the two tests and thus, by performing one of them, obtain the results of the other variable.
Apart from the strength measurements, democraphic caracteristics will be recorded to assess possible correlations between studied variables.
Study design
- Observational model
- Other
- Time perspective
- Cross-sectional
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Healthy athletes | – | Other: No intervention group.Competitive athletes without any groin injury. |
Who may qualify
- Ages
- 18 to 40 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- Competitive athletes without groin injury in the last 3 months.
Key inclusion criteria (2 listed)
- Having an active lifestyle
- Competing at any level in a federated sports discipline.
Key exclusion criteria (3 listed)
- Not consenting to participate in the research.
- Being unable to understand or write in Spanish.
- Having sustained any type of injury to the inguinal musculature in the past 3 months.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| No intervention group.There is no intervention group. | Other | Healthy athletes |
Primary outcome
Maximal adductor strength
Time frame: September to December (2024)
Measuring the maximum strength of the adductor musculature, performed manually by a physiotherapist using a dynamometer over a brief working period. To begin the test, the subject should lie in a supine position on a flat surface. Their hip should be positioned at a 0º angle in our case. Ideally, at least three measurements should be taken, including a brief rest (~30 seconds) between each repetition to minimize muscle fatigue. The dynamometer should be placed between both ankles of the patient, with the forearm of the analyzing physiotherapist positioned in the middle as resistance. The patient should exert as much pressure as possible against the dynamometer, which is held by the physiotherapist, and against the physiotherapist's elbow, as if trying to close their legs like scissors, using their adductor muscles and maintaining the contraction for 5 seconds.
Adductor fatigue strength test
Time frame: September to December (2024)
The individual will begin by assuming a side plank position, supported by the elbow, bent, and the forearm (lower arm) on the ground. The hand of the supporting arm is placed on the waist of the side of the lower limb that is to be evaluated (the highest). The evaluated limb is supported by a 0.5-meter high bench at the ankle region, while the opposite limb does not touch the ground, remaining in a semi-flexed position. The subject must control the descent of the pelvis by performing a hip abduction until the pelvis lightly touches the ground, and then return to the initial position by raising the pelvis again. The score is defined as the maximum number of repetitions completed before reaching muscle failure. During the test, participants are instructed to keep both legs parallel and to ensure that the knee of the non-evaluated leg remains in a semi-flexed position. Maintaining the correct alignment of the trunk throughout the exercise is crucial.
7 secondary outcomes
Weight
Time frame: September to December (2024)
Hip and groin outcome score (HAGOS)
Time frame: September to December (2024)
Age
Time frame: September to December (2024)
Sex
Time frame: September to December (2024)
Leg length
Time frame: September to December (2024)
Height
Time frame: September to December (2024)
Previous groin injury.
Time frame: September to December (2024)
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 11 Feb 2025.
- Background: PubMed 37080542de Queiroz JHM, Frota JP, Dos Reis FA, de Oliveira RR. Development and Predictive Validation of the Brazilian Adductor Performance Test for Estimating the Chance of Hip Adductor Injuries in Elite Soccer Athletes. Int J Sports Physiol Perform. 2023 Apr 20;18(6):653-659. doi: 10.1123/ijspp.2022-0306. Print 2023 Jun 1.
- Background: PubMed 37573852Robaina BQ, Medeiros DM, Roberti LS, Franke RA, Baroni BM. The Single Leg Bridge Test does not replace handheld dynamometer hamstring tests in a clinical setting. Phys Ther Sport. 2023 Sep;63:126-131. doi: 10.1016/j.ptsp.2023.08.001. Epub 2023 Aug 6.
- Derived from this study: PubMed 42384830Quintana-Cepedal M, Bailen-Garcia T, Riestra-Cendan S, Crespo I, Olmedillas H. Sex Differences in Maximal and Endurance Adductor Strength: Implications for Athlete Screening and Return to Play. J Strength Cond Res. 2026 Jul 1. doi: 10.1519/JSC.0000000000005577. Online ahead of print.
- 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 Injury and Groin Strain, run by University of Oviedo at 1 site in Spain.
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 2 inclusion and 3 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 11 Feb 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 Spain. 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?
Maximal adductor strength (time frame: September to December (2024)). 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?
On the ClinicalTrials.gov record for NCT06557577, which also lists 3 linked publications.
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 11 Feb 2025.