SwimmingNCT07419412
Isometric Strength and Joint Mobility Profile in Elite Artistic Swimmers Across Competitive Categories
An observational study of Swimming and Stretch, run by University of Vigo at 1 site in Spain.
Trial summary
This cross-sectional observational study aims to establish reference values for joint mobility and isometric muscle strength in elite artistic swimmers across different competitive categories. The study will analyze inter-limb asymmetries and agonist-antagonist strength ratios in upper and lower limbs. Read more about this study
- Who is it for?
- Ages 14 to 50 yearsHealthy volunteers can take part
- Conditions the study is for
- Swimming, Stretch, Assessment, Self
- What is being tested?
- Standardized Functional Performance Assessment
- How many people
- 45 participants
- Where
- 1 siteSpain
- Study dates
- 10 Jan 2026to 30 Mar 2026
- Phase
- Observational
- 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 50 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Study population: The study population consists of elite artistic swimmers selected to the Spanish National Artistic Swimming Team across Infant, Junior, and Senior competitive categories. Participants are high-performance athletes with national and international competitive experience who attend official national team training camps organized by the Spanish Swimming Federation. This population represents the highest competitive level in artistic swimming within the country and provides a unique reference group for functional performance characterization.
Who may be able to join
- Elite artistic swimmers selected for the Spanish National Artistic Swimming Team (Infant, Junior, or Senior categories).
- Age consistent with the competitive category: Infant 14-16 years, Junior 16-18 years, Senior ≥18 years.
- Attendance at the national team training camp where the assessments are performed.
- Voluntary participation with written informed consent (and assent/parental or legal guardian consent for minors).
Who cannot join
- Acute musculoskeletal or joint injury affecting the tested regions (shoulder, hip, elbow, knee) at the time of assessment.
- Chronic, previous, or any other condition that may limit participation or bias the measurements.
- Inability to attend the assessment session(s) during the training camp.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Spain1 site, 1 recruiting
- Recruiting
University of Vigo
Pontevedra, 36004
Pablo Hernández Lucas, phd, phernandez@uvigo.es
About this study
Official title: General Assessment of Strength and Mobility in Artistic Swimmers of the Spanish Swimming Federation
This cross-sectional observational study aims to establish reference values for joint mobility and isometric muscle strength in elite artistic swimmers across different competitive categories. The study will analyze inter-limb asymmetries and agonist-antagonist strength ratios in upper and lower limbs. Additionally, relationships between isometric strength, countermovement jump performance, and handgrip strength will be explored to assess their utility as functional performance indicators. Participants will be assessed during national team training camps using standardized, validated measurement protocols. The findings are expected to contribute to the identification of sport-specific functional profiles and potential injury risk factors in artistic swimming.
- Conditions
- Swimming, Stretch, Assessment, Self
- Being tested
- Standardized Functional Performance Assessment
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Standardized Functional Performance AssessmentOther
Participants undergo a standardized, non-invasive functional assessment protocol conducted during national team training camps. The evaluation includes anthropometric measurements, photographic goniometry of shoulder and hip joint mobility, isometric muscle strength testing of upper and lower limbs using a validated force sensor, countermovement jump performance assessed on a contact platform, and handgrip strength measured with a digital dynamometer. All procedures are performed in a single assessment session following standardized positioning, timing, and rest intervals.
| Study group | Role | What they receive |
|---|---|---|
| Infant Artistic Swimmers | Elite artistic swimmers aged 14-16 years selected to the Spanish National Artistic Swimming Team. Participants undergo a single-session standardized assessment including anthropometric measurements, joint mobility (shoulder and hip goniometry), isometric muscle strength testing (upper and lower limbs), countermovement jump performance, and handgrip strength during national team training camps. Receives: Other: Standardized Functional Performance Assessment | |
| Junior Artistic Swimmers | Elite artistic swimmers aged 16-18 years selected to the Spanish National Artistic Swimming Team. Participants complete the same standardized evaluation protocol assessing anthropometrics, joint mobility, isometric muscle strength, countermovement jump performance, and handgrip strength in a single assessment session. Receives: Other: Standardized Functional Performance Assessment | |
| Senior Artistic Swimmers | Elite artistic swimmers aged 18 years and older selected to the Spanish National Artistic Swimming Team. Participants undergo a standardized cross-sectional functional assessment including anthropometric data, joint mobility, isometric muscle strength, countermovement jump performance, and handgrip strength. Receives: Other: Standardized Functional Performance Assessment |
What is being measured
The primary outcome is the main question the study is designed to answer.
Isometric Muscle Strength (Peak Force) of Upper and Lower Limbs
Peak isometric force obtained during maximal voluntary isometric contractions (3-second efforts, best of three trials) for key muscle groups involved in artistic swimming, assessed bilaterally (dominant and non-dominant limbs). Upper-limb tests include shoulder internal/external rotation, ASH and iASH positions, and elbow flexion/extension. Lower-limb tests include hip flexion/extension/abduction/adduction and knee extension/flexion. Values will be recorded as absolute force and normalized to body mass when applicable.
Measured: Day 1
Secondary outcomes (7)
Shoulder Joint Mobility
Shoulder range of motion (degrees) assessed using standardized photographic goniometry, including internal and external rotation at 90° abduction and horizontal abduction. Measurements are performed bilaterally using anatomical landmarks and digital angle analysis software.
Measured: Day 1
Hip Joint Mobility
Hip range of motion (degrees) measured bilaterally using photographic goniometry, including hip flexion (straight leg raise), hip extension (Thomas test), hip abduction, and internal and external rotation with hip and knee at 90°.
Measured: Day 1
Inter-limb Strength Asymmetries
Between-limb asymmetries calculated from bilateral isometric strength values for upper and lower limbs, comparing dominant vs non-dominant and right vs left sides to describe asymmetry profiles across competitive categories.
Measured: Day 1
Agonist-Antagonist Strength Ratios
Strength ratios derived from isometric peak force of opposing muscle groups, including shoulder internal/external rotators and other relevant muscle actions, to characterize muscle balance profiles in artistic swimmers.
Measured: Day 1
Lower-Limb Explosive Power (Countermovement Jump)
Jump height measured during countermovement jump testing on a validated contact platform, including bilateral and unilateral jumps. Best performance from three trials per condition is recorded.
Measured: Day 1
Handgrip Strength
Maximal voluntary handgrip strength measured bilaterally using a digital dynamometer. Three maximal 3-second contractions are performed per hand, and mean values are recorded.
Measured: Day 1
Associations Between Isometric Strength and Functional Performance Measures
Correlations between isometric strength values and functional performance indicators (countermovement jump and handgrip strength) to explore their utility as surrogate functional assessment tools.
Measured: Day 1
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Feb 2026
- Study start10 Jan 2026
- Primary completion27 Feb 2026 (estimated)
- Study completion30 Mar 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for SwimmingStudies 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
- 45 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
- Investigators
- Pablo Hernández Lucas, phd, Principal investigator, Pablo Hernández
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07419412
- Sponsor's protocol ID
- Nadadoras Hugo
- Status last verified
- Feb 2026
- First submitted
- 11 Feb 2026
- Last updated
- 23 Feb 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 23 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- General Assessment of Strength and Mobility in Artistic Swimmers of the Spanish Swimming Federation
- ClinicalTrials.gov ID
- NCT07419412
- Acronym / sponsor ID
- Nadadoras Hugo
- Conditions
- Swimming, Stretch, Assessment, Self
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 45 participants (estimated)
- Lead sponsor
- University of VigoUniversity, hospital or other
- Study start
- 10 Jan 2026 (actual)
- Primary completion
- 27 Feb 2026 (estimated)
- Study completion
- 30 Mar 2026 (estimated)
- First posted
- 19 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.
This cross-sectional observational study aims to establish reference values for joint mobility and isometric muscle strength in elite artistic swimmers across different competitive categories. The study will analyze inter-limb asymmetries and agonist-antagonist strength ratios in upper and lower limbs. Additionally, relationships between isometric strength, countermovement jump performance, and handgrip strength will be explored to assess their utility as functional performance indicators. Participants will be assessed during national team training camps using standardized, validated measurement protocols. The findings are expected to contribute to the identification of sport-specific functional profiles and potential injury risk factors in artistic swimming.
Study design
- Observational model
- Other
- Time perspective
- Cross-sectional
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Infant Artistic Swimmers | – | Other: Standardized Functional Performance AssessmentElite artistic swimmers aged 14-16 years selected to the Spanish National Artistic Swimming Team. Participants undergo a single-session standardized assessment including anthropometric measurements, joint mobility (shoulder and hip goniometry), isometric muscle strength testing (upper and lower limbs), countermovement jump performance, and handgrip strength during national team training camps. |
| Junior Artistic Swimmers | – | Other: Standardized Functional Performance AssessmentElite artistic swimmers aged 16-18 years selected to the Spanish National Artistic Swimming Team. Participants complete the same standardized evaluation protocol assessing anthropometrics, joint mobility, isometric muscle strength, countermovement jump performance, and handgrip strength in a single assessment session. |
| Senior Artistic Swimmers | – | Other: Standardized Functional Performance AssessmentElite artistic swimmers aged 18 years and older selected to the Spanish National Artistic Swimming Team. Participants undergo a standardized cross-sectional functional assessment including anthropometric data, joint mobility, isometric muscle strength, countermovement jump performance, and handgrip strength. |
Who may qualify
- Ages
- 14 to 50 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
- Study population
- The study population consists of elite artistic swimmers selected to the Spanish National Artistic Swimming Team across Infant, Junior, and Senior competitive categories. Participants are high-performance athletes with national and international competitive experience who attend official national team training camps organized by the Spanish Swimming Federation. This population represents the highest competitive level in artistic swimming within the country and provides a unique reference group for functional performance characterization.
Key inclusion criteria (4 listed)
- Elite artistic swimmers selected for the Spanish National Artistic Swimming Team (Infant, Junior, or Senior categories).
- Age consistent with the competitive category: Infant 14-16 years, Junior 16-18 years, Senior ≥18 years.
- Attendance at the national team training camp where the assessments are performed.
- Voluntary participation with written informed consent (and assent/parental or legal guardian consent for minors).
Key exclusion criteria (3 listed)
- Acute musculoskeletal or joint injury affecting the tested regions (shoulder, hip, elbow, knee) at the time of assessment.
- Chronic, previous, or any other condition that may limit participation or bias the measurements.
- Inability to attend the assessment session(s) during the training camp.
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 |
|---|---|---|
| Standardized Functional Performance AssessmentParticipants undergo a standardized, non-invasive functional assessment protocol conducted during national team training camps. The evaluation includes anthropometric measurements, photographic goniometry of shoulder and hip joint mobility, isometric muscle strength testing of upper and lower limbs using a validated force sensor, countermovement jump performance assessed on a contact platform, and handgrip strength measured with a digital dynamometer. All procedures are performed in a single assessment session following standardized positioning, timing, and rest intervals. | Other | Infant Artistic Swimmers, Junior Artistic Swimmers, Senior Artistic Swimmers |
Primary outcome
Isometric Muscle Strength (Peak Force) of Upper and Lower Limbs
Time frame: Day 1
Peak isometric force obtained during maximal voluntary isometric contractions (3-second efforts, best of three trials) for key muscle groups involved in artistic swimming, assessed bilaterally (dominant and non-dominant limbs). Upper-limb tests include shoulder internal/external rotation, ASH and iASH positions, and elbow flexion/extension. Lower-limb tests include hip flexion/extension/abduction/adduction and knee extension/flexion. Values will be recorded as absolute force and normalized to body mass when applicable.
7 secondary outcomes
Shoulder Joint Mobility
Time frame: Day 1
Hip Joint Mobility
Time frame: Day 1
Inter-limb Strength Asymmetries
Time frame: Day 1
Agonist-Antagonist Strength Ratios
Time frame: Day 1
Lower-Limb Explosive Power (Countermovement Jump)
Time frame: Day 1
Handgrip Strength
Time frame: Day 1
Associations Between Isometric Strength and Functional Performance Measures
Time frame: Day 1
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 23 Feb 2026.
- Individual participant dataSharing planned: Undecided
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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.
Pablo Hernández Lucas, phd principal investigator
Pablo Hernández
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 Swimming and Stretch, run by University of Vigo 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 4 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: looking for participants now, as of the sponsor's last update on 23 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 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?
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 H Hernández, Phd (986 80 17 50 ext. 034, sdfisioterapia@uvigo.es), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Isometric Muscle Strength (Peak Force) of Upper and Lower Limbs (time frame: Day 1). 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 23 Feb 2026.