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Completed

NCT Number: NCT06671366

Test-retest Correlation in Isokinetic Shoulder Testing

This study is a prospective, monocentric interventional clinical study in 30 healthy volunteers.

The aim is to objectively assess shoulder external and internal rotation strength using a Cybex dynamometer in a specific position (seated with the arm at 45° abduction and 30° elevation).

The investigator would like here to determine the reproducibility of measurements in this precise evaluation position, but also to determine reference values in healthy subjects.

The results of this study will enable us to improve our management and establish a database for comparison with pathological subjects.

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Key information

Conditions

Isokinetic

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Clinique St Jean Sud de France

Saint-Jean-de-Védas, 34430, France

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Student of the Montpellier School of Physical Therapy
  • Adult having received informed information about the study and signed the consent form

Exclusion criteria

  • Any history of shoulder pathology in the year preceding the tests.

Treatment and study plan

external and internal shoulder rotation using a Cybex dynamometer

Device

Measurement of the reproducibility, in this precise evaluation position, of the results obtained between the different tests carried out 30 minutes apart, and thus the reliability of each measurement in this test.

measures :

  • Concentric internal rotation 60degrees/sec
  • Concentric external rotation 60 degrees/sec
  • Concentric internal rotation 180 degrees/sec
  • Concentric external rotation 180 degrees/sec
  • Eccentric internal rotation 60degrees/sec
  • Eccentric external rotation 60degrees/sec

Primary outcomes

  1. Correlation between each measurement at peak torque

    Time frame: 1hour

    Correlation between each measurement at peak torque below, and for each arm (12 correlations) in seated position abduction at 45 and 30 degrees anterior elevation.

    • Concentric internal rotation 60degrees/sec
    • Concentric external rotation 60 degrees/sec
    • Concentric internal rotation 180 degrees/sec
    • Concentric external rotation 180 degrees/sec
    • Eccentric internal rotation 60degrees/sec
    • Eccentric external rotation 60degrees/sec

    Evaluation of results using an intraclass correlation coefficient (ICC).

Secondary outcomes

  1. Data in healthy patients

    Time frame: 1hour

    Evaluation of the peak torque of each measurement in healthy patients, have a database.

  2. Establishing the test's external validity

    Time frame: 1hour

    Validated external test :

    • External validity
    • Differences between dominant arm / weak arm measurements
    • Differences between eccentric and concentric measurements
    • Difference between "test" and "retest" measurements

Sponsors and collaborators

Lead sponsor

Clinique Saint Jean, France

Other

Registry information

Official study title

Evaluation of Test-retest Correlation in Isokinetic Shoulder Testing

Acronym: ISO2024

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Nov 4, 2024
Registry last updated
Jun 15, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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