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

Jeannine Bergmann1, Carmen Krewer2, Friedemann Müller1

  • 1German Center for Vertigo and Balance Disorders (DSGZ), Ludwig-Maximilians University of Munich, Marchioninistraße 15, 81377 Munich, Germany; Schoen Clinic Bad Aibling, Kolbermoorer Straße 72, 83043 Bad Aibling, Germany.

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Summary
This summary is machine-generated.

The Scale for Retropulsion (SRP) is a reliable bedside test for quantifying retropulsion, an impairment of body orientation, in neurological patients. This study validated its clinimetric properties in diverse neurological conditions.

Keywords:
Backward disequilibriumClinimetric propertiesNeurological disordersReliabilityScale for RetropulsionValidity

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Area of Science:

  • Neurology
  • Clinical Assessment
  • Rehabilitation Science

Background:

  • Retropulsion is a sagittal plane body orientation impairment.
  • The Scale for Retropulsion (SRP) was previously developed via a Delphi study with high expert consensus.

Purpose of the Study:

  • To evaluate the clinimetric properties of the German version of the Scale for Retropulsion (SRP).
  • To assess the validity and reliability of the SRP in patients with various neurological disorders.

Main Methods:

  • The SRP was administered to 70 hospitalized neurological patients (stroke, critical illness neuropathy/myopathy, Parkinson syndromes).
  • Internal consistency, test-retest reliability, interrater reliability, and construct validity were assessed using established statistical methods (Cronbach's alpha, weighted kappa, ICC, Bland-Altman plots, Spearman correlation).

Main Results:

  • The SRP demonstrated excellent internal consistency (Cronbach's α=0.875).
  • Good to excellent test-retest (weighted kappa=0.957, ICC=0.957) and interrater reliability (weighted kappa=0.837, ICC=0.837) were observed.
  • Construct validity was supported by strong correlations with balance scales and moderate correlations with posturographic measures.

Conclusions:

  • The Scale for Retropulsion (SRP) is a valid and reliable bedside tool.
  • The SRP effectively quantifies retropulsion in individuals with neurological disorders.