The Reliability and Validity of a Clinical Measurement Proposed to Quantify Humeral Torsion

# Background Range of motion (ROM) impairments of the overhead athletes' shoulder are commonly addressed through mobility-based treatments, however, adaptations from humeral torsion (HT) are not amenable to such interventions. A clinical measurement to quantify HT has been proposed, however, t...

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Main Authors: Paul A. Salamh, William J. Hanney, Lauren Champion, Connor Hansen, Kari Cochenour, Celine Siahmakoun, Morey J. Kolber
Format: Article
Language:English
Published: North American Sports Medicine Institute 2022-01-01
Series:International Journal of Sports Physical Therapy
Online Access:https://doi.org/10.26603/001c.29593
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author Paul A. Salamh
William J. Hanney
Lauren Champion
Connor Hansen
Kari Cochenour
Celine Siahmakoun
Morey J. Kolber
author_facet Paul A. Salamh
William J. Hanney
Lauren Champion
Connor Hansen
Kari Cochenour
Celine Siahmakoun
Morey J. Kolber
author_sort Paul A. Salamh
collection DOAJ
description # Background Range of motion (ROM) impairments of the overhead athletes' shoulder are commonly addressed through mobility-based treatments, however, adaptations from humeral torsion (HT) are not amenable to such interventions. A clinical measurement to quantify HT has been proposed, however, the validity is not conclusive. # Purpose The primary aim of this study is to determine the intrarater reliability and standard error of measurement (SEM) of the biceps forearm angle (BFA) measurement. The secondary aim of this study is to investigate the convergent validity of the BFA compared to diagnostic ultrasound. # Study Design Cross Sectional Reliability and Validity Study # Methods HT measurements, utilizing diagnostic ultrasound, were compared to BFA in 74 shoulders (37 subjects) over two sessions. Each measurement was performed three times and a third investigator recorded measures to ensure blinding. Reliability was investigated using utilizing an intraclass correlation coefficient (ICC 3,k) # Results Intrarater reliability values were 0.923 and 0.849 for diagnostic ultrasound and BFA methods respectively. Convergent validity was *r* = 0.566. The standard error of measurement for diagnostic ultrasound and BFA was 3° and 5°, respectively. The 95% limits of agreement between the two measurement methods were -24.80° and 19.80° with a mean difference of -2.50° indicating that on average the diagnostic ultrasound measurement was lower than that of the BFA method. # Conclusion The BFA is a reliable clinical method for quantifying HT, however, demonstrates moderate to poor convergent validity when compared to diagnostic ultrasound. # Level of Evidence 2b
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spelling doaj-art-ab5f8da03a974da184a375f03fa924612025-02-11T20:27:14ZengNorth American Sports Medicine InstituteInternational Journal of Sports Physical Therapy2159-28962022-01-01166The Reliability and Validity of a Clinical Measurement Proposed to Quantify Humeral TorsionPaul A. SalamhWilliam J. HanneyLauren ChampionConnor HansenKari CochenourCeline SiahmakounMorey J. Kolber# Background Range of motion (ROM) impairments of the overhead athletes' shoulder are commonly addressed through mobility-based treatments, however, adaptations from humeral torsion (HT) are not amenable to such interventions. A clinical measurement to quantify HT has been proposed, however, the validity is not conclusive. # Purpose The primary aim of this study is to determine the intrarater reliability and standard error of measurement (SEM) of the biceps forearm angle (BFA) measurement. The secondary aim of this study is to investigate the convergent validity of the BFA compared to diagnostic ultrasound. # Study Design Cross Sectional Reliability and Validity Study # Methods HT measurements, utilizing diagnostic ultrasound, were compared to BFA in 74 shoulders (37 subjects) over two sessions. Each measurement was performed three times and a third investigator recorded measures to ensure blinding. Reliability was investigated using utilizing an intraclass correlation coefficient (ICC 3,k) # Results Intrarater reliability values were 0.923 and 0.849 for diagnostic ultrasound and BFA methods respectively. Convergent validity was *r* = 0.566. The standard error of measurement for diagnostic ultrasound and BFA was 3° and 5°, respectively. The 95% limits of agreement between the two measurement methods were -24.80° and 19.80° with a mean difference of -2.50° indicating that on average the diagnostic ultrasound measurement was lower than that of the BFA method. # Conclusion The BFA is a reliable clinical method for quantifying HT, however, demonstrates moderate to poor convergent validity when compared to diagnostic ultrasound. # Level of Evidence 2bhttps://doi.org/10.26603/001c.29593
spellingShingle Paul A. Salamh
William J. Hanney
Lauren Champion
Connor Hansen
Kari Cochenour
Celine Siahmakoun
Morey J. Kolber
The Reliability and Validity of a Clinical Measurement Proposed to Quantify Humeral Torsion
International Journal of Sports Physical Therapy
title The Reliability and Validity of a Clinical Measurement Proposed to Quantify Humeral Torsion
title_full The Reliability and Validity of a Clinical Measurement Proposed to Quantify Humeral Torsion
title_fullStr The Reliability and Validity of a Clinical Measurement Proposed to Quantify Humeral Torsion
title_full_unstemmed The Reliability and Validity of a Clinical Measurement Proposed to Quantify Humeral Torsion
title_short The Reliability and Validity of a Clinical Measurement Proposed to Quantify Humeral Torsion
title_sort reliability and validity of a clinical measurement proposed to quantify humeral torsion
url https://doi.org/10.26603/001c.29593
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