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Multidirectional Isometric Assessment of the Hip

NCT06940206 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 55

Last updated 2025-04-27

No results posted yet for this study

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. 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.

Conditions

  • Sports Physical Therapy
  • Hip
  • Assessment, Self

Interventions

DIAGNOSTIC_TEST

Multidirectional Isometric Assessment of the Hip

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.

Sponsors & Collaborators

  • University of Vigo

    lead OTHER

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
14 Years
Max Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-04-28
Primary Completion
2025-05-05
Completion
2025-06-30

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06940206 on ClinicalTrials.gov