Index to Chiropractic Literature
Index to Chiropractic Literature
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ID 25142
  Title Test-retest reliability of handgrip strength as an outcome measure in patients with symptoms of shoulder impingement syndrome
URL https://www.ncbi.nlm.nih.gov/pubmed/29549892
Journal J Manipulative Physiol Ther. 2018 Mar-Apr;41(3):252-257
Author(s)
Subject(s)
Peer Review Yes
Publication Type Article
Abstract/Notes

Objective: The purpose of this study was to investigate the degree of test-retest reliability of grip strength measurement using a hand dynamometer in patients with shoulder impingement syndrome.

Methods: A total of 19 patients (10 women and 9 men; mean ± standard deviation age, 33.2 ± 12.9 years; range 18-59 years) with shoulder impingement syndrome were measured using a hand dynamometer by the same data collector in 2 different testing sessions with a 7-day interval. During each session, patients were encouraged to exert 3 maximal isometric contractions on the affected hand and the mean value of the 3 efforts (measured in kilogram-force [Kgf]) was used for data analysis. The intraclass correlation coefficient (ICC2,1) as well as the standard error of measurement (SEM) and Bland-Altman plot were used to estimate the degree of test-retest reliability and the measurement error, respectively.

Results: Grip strength data analysis revealed an ICC2,1 score of 0.94, which, based on the Shrout classification, is considered as excellent test-retest reliability of grip strength measurement. The small values of SEMs reported in both sessions (SEM1, 2.55 Kgf; SEM2, 2.39 Kgf) and the small width of the 95% limits of agreement in the Bland-Altman plot (ranging from −7.39 Kgf to 7.03 Kgf) reflected the measurement precision and the narrow variation of the differences during the 2 testing sessions.

Conclusions: Results from this study identified excellent test-retest reliability of grip strength measurement in shoulder impingement syndrome, indicating its potential use as an outcome measure in clinical practice.

Author keywords: Hand Strength; Muscle Strength Dynamometer; Shoulder Impingement Syndrome

Author affiliations: CS, PM, CX, CK: Department of Health Science, Diogenous 6, Engomi, European University, Nicosia, Cyprus; ME: Department of Life and Health Science, 46 Makedonitissas Avenue, Engomi, University of Nicosia, Cyprus

This abstract is reproduced with the permission of the publisher; full text is available by subscription. Click on the above link and select a publisher from PubMed's LinkOut feature.


 

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