The scale for retropulsion: Internal consistency, reliability and construct validity

Bergmann, Jeannine; Krewer, Carmen; Mueller, Friedemann und Jahn, Klaus (2022): The scale for retropulsion: Internal consistency, reliability and construct validity. In: Annals of Physical and Rehabilitation Medicine, Bd. 65, Nr. 2, 101537

Abstract

Background: Retropulsion is an impairment of body orientation against gravity in the sagittal plane. In a Delphi study, the Scale for Retropulsion (SRP) was developed with a high level of expert agreement.Objective: To assess the clinimetric properties of the German SRP in patients with neurological disorders. Methods: The SRP was applied to 70 hospitalized patients with neurological disorders (stroke, critical illness neuropathy and/or myopathy, Parkinson syndromes). Internal consistency was determined with the Cronbach . Test-retest and interrater reliabilities were evaluated with the weighted kappa, intraclass correlation coefficient (ICC), and Bland-Altman plots. The construct validity was evaluated with Spearman correlation. Results: The median (interquartile range) SRP score was 5 (3-8) and ranged from 0 to 22 (total scale range: 0 to 24). The SRP had excellent internal consistency (Cronbach = 0.875) and good to excellent test- retest reliability (weighted kappa = 0.957, ICC = 0.957) and interrater reliability (weighted kappa = 0.837, ICC = 0.837). Analysis of construct validity resulted in good correlations with other clinical balance scales (r(Sp) > 0.80), and fair to moderate correlations with posturographic measures (r(Sp) = 0.27-0.56) and the subjective postural vertical error in the sagittal plane (r(Sp) =-0.325, P = 0.012) as well as the range in the frontal plane (r(Sp) = 0.359, P = 0.007). The SRP discriminated between patients classified with and without retropulsion by an independent clinical expert (P < 0.001). Conclusion: The SRP provides a valid and reliable bedside test to quantify retropulsion in individuals with neurological disorders. (C) 2021 Elsevier Masson SAS. All rights reserved.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 1877-0657
• Sprache: Englisch