Sports Physical TherapyNCT06940206
Multidirectional Isometric Assessment of the Hip
A study testing Multidirectional Isometric Assessment of the Hip in people with Sports Physical Therapy and Hip, run by University of Vigo.
Trial summary
With the exception of the shoulder, the hip is among the most frequently injured areas in swimmers. Despite this, hip injuries are often overlooked in training and prevention programmes. Read more about this study
- Who is it for?
- Ages 14 to 18 yearsHealthy volunteers can take part
- Conditions the study is for
- Sports Physical Therapy, Hip, Assessment, Self
- What is being tested?
- Multidirectional Isometric Assessment of the Hip
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 55 participants
- Where
- No sites listed yet
- Study dates
- 28 Apr 2025to 30 Jun 2025
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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 14 to 18 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Who may be able to join
- Aged between 14 and 18 years.
- Swimmers who train at least 15 hours weekly.
- Swimmers who have participated in the national championship this season.
Who cannot join
- Swimmers with any current hip or lower limb pathology.
- Swimmers who have required hip surgery.
- Swimmers who, for any other reason, are unable to complete an isometric maximal strength test.
- No ability to perform the Multidirectional Isometric Assessment of the Hip without compensatory movements.
- Refusal to sign informed consent (or legal guardian's consent for minors).
Trial locations and contacts
No sites are listed yet. Contact the study team or a site near you to ask about taking part.
About this study
Official title: Multidirectional Isometric Assessment of the Hip in Young Swimmers
With the exception of the shoulder, the hip is among the most frequently injured areas in swimmers. Despite this, hip injuries are often overlooked in training and prevention programmes. Such neglect can cause significant damage to muscles, particularly the adductors, and the joint itself, potentially requiring arthroscopic surgery or even leading to secondary injuries in related structures such as the knee. Furthermore, hip strength and range of motion directly affect swimmers' underwater kicking speed. Although hip assessments are common in other sports, like football, for injury prevention and performance analysis-both dynamically and isometrically-isometric testing is particularly recommended due to its higher reproducibility.
Therefore, this study aims to validate a multidirectional isometric hip test in swimmers and examine agonist-antagonist muscle ratios in young advanced swimmers.
Read more
A comparative analysis will be conducted on 30 elite swimmers. This will include a descriptive analysis of the group and comparative analyses between breaststroke/non-breaststroke swimmers and between genders. Maximum isometric contractions of both lower limbs will be measured using a Chronojump force sensor (Boscosystem, Barcelona, Spain).
Athletes will stand on a step positioned centrally within a rack or cage, either laterally or frontally depending on the movement assessed (ABD-ADD or flexion-extension, respectively). They will grip the appropriate supports with their hands and perform three maximal efforts of each movement lasting 3 seconds, without compensatory actions (any attempt with compensations will be discounted). There will be a 20-second rest between attempts. All three attempts will be recorded.
To assess measurement reliability, tests will be repeated after 48 hours for subsequent comparison.
- Conditions
- Sports Physical Therapy, Hip, Assessment, Self
- Being tested
- Multidirectional Isometric Assessment of the Hip
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Multidirectional Isometric Assessment of the HipDiagnostic test
Participants perform isometric tests (flexion, extension, ABD, ADD) to assess isometric hip strength at different basic movements over two sessions. Data is collected to evaluate the reliability and validity of these tests for swimmers.
| Study group | Role | What they receive |
|---|---|---|
| Validation of Isometric Assessment of the Hip in Swimmers | Other | Participants perform isometric tests (flexion, extension, ABD, ADD) to assess isometric hip strength at different basic movements over two sessions. Data is collected to evaluate the reliability and validity of these tests for swimmers. Receives: Diagnostic Test: Multidirectional Isometric Assessment of the Hip |
What is being measured
The primary outcome is the main question the study is designed to answer.
Intraclass Correlation Coefficient (ICC) for Multidirectional Isometric Test.
Assessment of between-day reliability of the Multidirectional Isometric Test using intraclass correlation Coefficients (ICC) for hip flexion, extension, abduction and adduction movements.
Measured: Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Coefficient of Variation (CV) for Multidirectional Isometric Test.
Analysis of the coefficient of variation (CV) to evaluate data dispersion and consistency for Multidirectional Isometric Test.
Measured: Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Minimum Detectable Change (MDC) for Multidirectional Isometric Test.
Calculation of the minimum detectable change (MDC) to identify the smallest significant change in performance beyond measurement error for Multidirectional Isometric Test. (MDC90: Minimal Detectable Change at 90% Confidence; MDC%: Minimal Detectable Change Percentage).
Measured: Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Force Ratios Between for Multidirectional Isometric Test.
Evaluation of the agonist-antagonist strength ratios between hip flexion, extension, abduction and adduction movements.
Measured: Measured at point baseline (Day 0).
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Apr 2025
- Study start28 Apr 2025 (estimated)
- Primary completion5 May 2025 (estimated)
- Study completion30 Jun 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Sports Physical TherapyStudies 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- Validation of multidirectional isometric hip strength
- Masking
- None (open label)
- Enrolment
- 55 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Vigo
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Pablo Hernandez-Lucas, University of Vigo
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06940206
- Sponsor's protocol ID
- Cadera
- Status last verified
- Apr 2025
- First submitted
- 13 Apr 2025
- Last updated
- 27 Apr 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 27 Apr 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Multidirectional Isometric Assessment of the Hip in Young Swimmers
- ClinicalTrials.gov ID
- NCT06940206
- Acronym / sponsor ID
- Cadera
- Conditions
- Sports Physical Therapy, Hip, Assessment, Self
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 55 participants (estimated)
- Lead sponsor
- University of VigoUniversity, hospital or other
- Study start
- 28 Apr 2025 (estimated)
- Primary completion
- 5 May 2025 (estimated)
- Study completion
- 30 Jun 2025 (estimated)
- First posted
- 23 Apr 2025 (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.
With the exception of the shoulder, the hip is among the most frequently injured areas in swimmers. Despite this, hip injuries are often overlooked in training and prevention programmes. Such neglect can cause significant damage to muscles, particularly the adductors, and the joint itself, potentially requiring arthroscopic surgery or even leading to secondary injuries in related structures such as the knee. Furthermore, hip strength and range of motion directly affect swimmers' underwater kicking speed. Although hip assessments are common in other sports, like football, for injury prevention and performance analysis-both dynamically and isometrically-isometric testing is particularly recommended due to its higher reproducibility.
Therefore, this study aims to validate a multidirectional isometric hip test in swimmers and examine agonist-antagonist muscle ratios in young advanced swimmers.
A comparative analysis will be conducted on 30 elite swimmers. This will include a descriptive analysis of the group and comparative analyses between breaststroke/non-breaststroke swimmers and between genders. Maximum isometric contractions of both lower limbs will be measured using a Chronojump force sensor (Boscosystem, Barcelona, Spain).
Athletes will stand on a step positioned centrally within a rack or cage, either laterally or frontally depending on the movement assessed (ABD-ADD or flexion-extension, respectively). They will grip the appropriate supports with their hands and perform three maximal efforts of each movement lasting 3 seconds, without compensatory actions (any attempt with compensations will be discounted). There will be a 20-second rest between attempts. All three attempts will be recorded.
To assess measurement reliability, tests will be repeated after 48 hours for subsequent comparison.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- Validation of multidirectional isometric hip strength
| Arm | Type | Receives |
|---|---|---|
| Validation of Isometric Assessment of the Hip in Swimmers | Other | Diagnostic Test: Multidirectional Isometric Assessment of the HipParticipants perform isometric tests (flexion, extension, ABD, ADD) to assess isometric hip strength at different basic movements over two sessions. Data is collected to evaluate the reliability and validity of these tests for swimmers. |
Who may qualify
- Ages
- 14 to 18 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Key inclusion criteria (3 listed)
- Aged between 14 and 18 years.
- Swimmers who train at least 15 hours weekly.
- Swimmers who have participated in the national championship this season.
Key exclusion criteria (5 listed)
- Swimmers with any current hip or lower limb pathology.
- Swimmers who have required hip surgery.
- Swimmers who, for any other reason, are unable to complete an isometric maximal strength test.
- No ability to perform the Multidirectional Isometric Assessment of the Hip without compensatory movements.
- Refusal to sign informed consent (or legal guardian's consent for minors).
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 |
|---|---|---|
| Multidirectional Isometric Assessment of the HipParticipants perform isometric tests (flexion, extension, ABD, ADD) to assess isometric hip strength at different basic movements over two sessions. Data is collected to evaluate the reliability and validity of these tests for swimmers. | Diagnostic test | Validation of Isometric Assessment of the Hip in Swimmers |
Primary outcome
Intraclass Correlation Coefficient (ICC) for Multidirectional Isometric Test.
Time frame: Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Assessment of between-day reliability of the Multidirectional Isometric Test using intraclass correlation Coefficients (ICC) for hip flexion, extension, abduction and adduction movements.
Coefficient of Variation (CV) for Multidirectional Isometric Test.
Time frame: Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Analysis of the coefficient of variation (CV) to evaluate data dispersion and consistency for Multidirectional Isometric Test.
Minimum Detectable Change (MDC) for Multidirectional Isometric Test.
Time frame: Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Calculation of the minimum detectable change (MDC) to identify the smallest significant change in performance beyond measurement error for Multidirectional Isometric Test. (MDC90: Minimal Detectable Change at 90% Confidence; MDC%: Minimal Detectable Change Percentage).
Force Ratios Between for Multidirectional Isometric Test.
Time frame: Measured at point baseline (Day 0).
Evaluation of the agonist-antagonist strength ratios between hip flexion, extension, abduction and adduction movements.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Apr 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.
Questions about this trial
What is this clinical trial studying?
A study testing Multidirectional Isometric Assessment of the Hip in people with Sports Physical Therapy and Hip, run by University of Vigo.
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 3 inclusion and 5 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: opening soon, as of the sponsor's last update on 27 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.
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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Pablo Hernández, Phd (675675489, phernandez@uvigo.es), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Intraclass Correlation Coefficient (ICC) for Multidirectional Isometric Test. (time frame: Measured at two time points: baseline (Day 0) and follow-up (Day 2).). The study lists 4 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 27 Apr 2025.