Validation of a Brazilian Portuguese Version of the Walking Estimated-Limitation Calculated by History (WELCH)

Cucato, Gabriel, Correia, Marilia de Almeida, Farah, Breno Quintella, Saes, Glauco Fernandes, Lima, Aluísio Henrique de Andrade, Ritti-Dias, Raphael Mendes and Wolosker, Nelson (2016) Validation of a Brazilian Portuguese Version of the Walking Estimated-Limitation Calculated by History (WELCH). Arquivos Brasileiros de Cardiologia, 106 (1). pp. 49-55. ISSN 0066-782X

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Official URL: https://doi.org/10.5935/abc.20160004

Abstract

BACKGROUND: The Walking Estimated-Limitation Calculated by History (WELCH) questionnaire has been proposed to evaluate walking impairment in patients with intermittent claudication (IC), presenting satisfactory psychometric properties. However, a Brazilian Portuguese version of the questionnaire is unavailable, limiting its application in Brazilian patients.

OBJECTIVE: To analyze the psychometric properties of a translated Brazilian Portuguese version of the WELCH in Brazilian patients with IC.

METHODS: Eighty-four patients with IC participated in the study. After translation and back-translation, carried out by two independent translators, the concurrent validity of the WELCH was analyzed by correlating the questionnaire scores with the walking capacity assessed with the Gardner treadmill test. To determine the reliability of the WELCH, internal consistency and test-retest reliability with a seven-day interval between the two questionnaire applications were calculated.

RESULTS: There were significant correlations between the WELCH score and the claudication onset distance (r = 0.64, p = 0.01) and total walking distance (r = 0.61, p = 0.01). The internal consistency was 0.84 and the intraclass correlation coefficient between questionnaire evaluations was 0.84. There were no differences in WELCH scores between the two questionnaire applications.

CONCLUSION: The Brazilian Portuguese version of the WELCH presents adequate validity and reliability indicators, which support its application to Brazilian patients with IC.

Item Type: Article
Uncontrolled Keywords: Aged, Ankle Brachial Index, Brazil, Disability Evaluation, Exercise Test/methods, Female, Humans, Intermittent Claudication/physiopathology, Male, Middle Aged, Predictive Value of Tests, Psychometrics, Reproducibility of Results, Statistics, Nonparametric, Surveys and Questionnaires/standards, Translations, Walking/physiology
Subjects: B100 Anatomy, Physiology and Pathology
C600 Sports Science
Department: Faculties > Health and Life Sciences > Sport, Exercise and Rehabilitation
Depositing User: Rachel Branson
Date Deposited: 26 Feb 2020 15:31
Last Modified: 26 Feb 2020 15:31
URI: http://nrl.northumbria.ac.uk/id/eprint/42248

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