Validation and Inverse Analysis of The Athletic Shoulder Test (ASH).

March 24, 2025 updated by: Pablo Hernandez-Lucas, University of Vigo

Validation and Inverse Analysis of The Athletic Shoulder Test (ASH): Reliability of a Novel Upper Body Isometric Strength Test

To validate both the Athletic Shoulder (ASH) test, conducted on rugby players, and its inverse, the Inverse Athletic Shoulder (IASH) test, for swimmers. This involves assessing the strength relationship between shoulder flexion and extension at three different adduction angles (180º, 135º, 90º) to identify potential injuries associated with these imbalances.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

21

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Spain
      • Pontevedra, Spain, 36004
        • Pablo

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • High-performance swimmers.
  • Aged between 14 and 18 years.
  • No acute injuries in the cervical or scapular region.
  • Ability to perform the ASH and IASH tests without compensatory movements.

Exclusion Criteria:

  • Acute injuries in the cervical or scapular region.
  • Inability to maintain proper positioning during the tests due to lack of adequate mobility or strength.
  • Refusal to sign informed consent (or legal guardian's consent for minors).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Validation of ASH and IASH Tests in Swimmers
Participants perform the Athletic Shoulder (ASH) test and the Inverse Athletic Shoulder (IASH) test to assess isometric shoulder strength at different adduction angles (180º, 135º, 90º) over two sessions. Data is collected to evaluate the reliability and validity of these tests for swimmers.
Procedure: Athletic Shoulder (ASH) and Inverse Athletic Shoulder (IASH) Tests
Participants perform the Athletic Shoulder (ASH) test and Inverse Athletic Shoulder (IASH) test to measure maximal isometric shoulder strength in three positions (180º, 135º, 90º) during two separate sessions. Data is used to assess test reliability and validity for high-performance swimmers.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Intraclass Correlation Coefficient (ICC) for ASH Test
Time Frame: Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Assessment of between-day reliability of the ASH test using intraclass correlation coefficients (ICC) for shoulder extension at three adduction angles (180º, 135º, 90º).
Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Intraclass Correlation Coefficient (ICC) for IASH Test
Time Frame: Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Assessment of between-day reliability of the IASH test using intraclass correlation coefficients (ICC) for shoulder flexion at three adduction angles (180º, 135º, 90º).
Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Coefficient of Variation (CV) for ASH and IASH Tests
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 both ASH and IASH tests.
Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Minimum Detectable Change (MDC) for ASH and IASH Tests
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 both ASH and IASH tests.
Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Force Ratios Between ASH and IASH Tests
Time Frame: Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Evaluation of the agonist-antagonist strength ratios between ASH (extension) and IASH (flexion) tests across three adduction angles (180º, 135º, 90º).
Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Comparison of Shoulder Strength Between Preferred and Non-Preferred Breathing Sides
Time Frame: Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Analysis of differences in isometric shoulder strength between the preferred and non-preferred breathing sides in ASH and IASH tests across three adduction angles.
Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Evaluation of Test Fatigue and Its Impact on Reliability
Time Frame: Measured at two time points: baseline (Day 0) and follow-up (Day 2).
Assessment of fatigue effects during ASH and IASH tests, considering the 20-second rest period and total number of efforts (36 per participant), and their potential impact on test reliability and strength measurements.
Measured at two time points: baseline (Day 0) and follow-up (Day 2).

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Vigo

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 10, 2025

Primary Completion (Actual)

January 20, 2025

Study Completion (Actual)

January 30, 2025

Study Registration Dates

First Submitted

December 31, 2024

First Submitted That Met QC Criteria

January 1, 2025

First Posted (Actual)

March 25, 2025

Study Record Updates

Last Update Posted (Actual)

March 28, 2025

Last Update Submitted That Met QC Criteria

March 24, 2025

Last Verified

March 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • DASH

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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