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German translation and psychometric properties of the modified Gait Efficacy Scale (mGES)

  • Dorothee Altmeier
  • Eleftheria GiannouliEmail author
Original Contribution
  • 9 Downloads

Abstract

Background

Perceived self-efficacy to complete a task affects function and behavior. The modified Gait Efficacy Scale (mGES) is a 10-item self-report questionnaire to assess confidence in walking under various circumstances.

Objective

The aim of this study was to adapt the mGES to a German version (mGES-D) and test its psychometric properties.

Material and methods

The final sample used for analysis consisted of 140 community-dwelling older adults with a mean age of 71 ± 6 years and 61% were female. Construct validity of the questionnaire was tested with Cronbach’s alpha. The test-retest reliability was calculated in a subsample of 31 after a 4–5 week period (33.4 ± 11 days). To test the validity three other mobility-related self-efficacy scales (Activities-Specific Balance Confidence, Falls Efficacy scale and the Stair Self-Efficacy questionnaire) as well as two performance-based measures (gait speed and the Four Square Step test) were used.

Results

Both the internal consistency (T1 = 0.934, T2 = 0.958) as well as the test-retest reliability (0.932) were acceptable. Correlations between the mGES-D and the rest of the German mobility-related self-efficacy scales were above 0.758 and the performance-based mobility measures above 0.316.

Conclusion

The mGES-D is a reliable and valid measure of walking confidence among healthy, community-dwelling older adults. Further application and testing of the mGES-D in primary care and clinical studies are needed to consolidate the findings.

Keywords

Walking confidence Older adults Falls prevention Gait disorders Geriatric assessment 

Deutsche Übersetzung und psychometrische Eigenschaften der modifizierten Gait Efficacy Scale (mGES)

Zusammenfassung

Hintergrund

Das Gefühl, einer Aufgabe gewachsen zu sein, beeinflusst unsere Leistungsfähigkeit und unser Handeln. Mit der modifizierten Gait Efficacy Scale (mGES) wird mittels 10 Items die Selbstwirksamkeitserwartung in verschiedenen Gangsituationen abgefragt.

Ziel

Ziel dieser Studie ist die Anpassung des mGES auf eine deutsche Version (mGES-D) und die Untersuchung der psychometrischen Eigenschaften.

Material und Methoden

Die verwendete Stichprobe umfasst 140 eigenständig lebende Senioren mit einem durchschnittlichen Alter von 71 ± 6 Jahren, 61 % davon weiblich. Die Konstruktvalidität des Fragebogens wurde mittels Cronbachs Alpha berechnet. Zur Überprüfung der Test-Retest-Reliabilität wurde die Testung bei einer Stichprobengröße von n = 31 nach 4 bis 5 Wochen (33,4 ± 11 Tage) wiederholt. Die Validität wurde mittels des Vergleichs mit drei anderen Selbstwirksamkeits-Fragebögen (Activities-specific Balance Confidence, Falls Efficacy Scale und Stair Self-Efficacy Questionnaire) und zwei körperlichen Tests (Ganggeschwindigkeit und Four-Square-Step-Test) überprüft.

Ergebnisse

Die Ergebnisse der internen Konsistenz (T1 = 0,934, T2 = 0,958) und Test-Retest-Reliabilität (0,932) sind akzeptabel. Die Korrelationen zwischen dem mGES-D und den erhobenen Selbstwirksamkeits-Fragebögen lagen über 0,758 und den körperlichen Tests über 0,316.

Diskussion

Der mGES-D ist ein reliables und valides Messinstrument zur Erfassung der gangspezifischen Selbstwirksamkeit bei gesunden älteren Menschen. Eine weitere Anwendung und Erprobung des mGES-D in der Primärversorgung und in klinischen Studien ist nötig, um die Ergebnisse dieser Studie zu konsolidieren.

Schlüsselwörter

Gang-Selbstwirksamkeit Ältere Menschen Sturzprophylaxe Gangstörungen Geriatrische Messverfahren 

Notes

Compliance with ethical guidelines

Conflict of interest

D. Altmeier and E. Giannouli declare that they have no competing interests.

All procedures followed were in accordance with the ethical standards of the Ethics Committee of the German Sport University Cologne (reference number: 187/2017) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all patients included in the study.

Supplementary material

391_2019_1507_MOESM1_ESM.docx (15 kb)
Supplementary Table: Items comprising the German version of the mGES (mGES-D)

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Copyright information

© Springer Medizin Verlag GmbH, ein Teil von Springer Nature 2019

Authors and Affiliations

  1. 1.Institute of Movement and Sport GerontologyGerman Sport University CologneCologneGermany

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