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Chinese (Mandarin) translation of the incremental shuttle walk test and its validity and reliability: A cross-sectionalstudy

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posted on 2023-10-17, 06:42 authored by Wei Qin Ang, Hong Ting Tan, Si Min Goh, Samantha W. Seng, Katherin S. Huang, Melissa Y. Chan, Tsz Ling Meredith YeungTsz Ling Meredith Yeung

Background/Purpose: To date, there are no published validated Chinese versions of the incremental shuttle walk test (ISWT) instructions despite its wide clinical applications. Translation of the Chinese ISWT instruction is done in an ad-hoc manner within the Chinese-speaking populations, affecting the test's reliability and validity since translation can di®er signi¯cantly between individuals. This warrants the need for psychometric testing of such translation.

Objectives: To develop a Chinese (Mandarin) version of the ISWT instructions (ISWT-CHN) that is conceptually equivalent to the original English version (ISWT-ENG) and establish its reliability and validity.

Methods: Forward and backward translations from the ISWT-ENG were done to generate the ISWT-CHN. Face and content validity was determined during the translation process. Intra-rater and inter-rater reliability of the ISWT-CHN, construct and criterion validity were established by analysing the ISWT and the gold standard cardiopulmonary exercise test results.

Results: The Item-Content validity index (I-CVI), Scale-level-Content validity index (S-CVI), and content validity ratio (CVR) of the ISWT-CHN were 1.0. Intra-class Correlation Coe±cient (ICC) for inter-rater reliability between two raters were excellent (ICC = 0:99, 95% CI 0.97–1.0, p < 0:001; SEM = 0:85 m, MDC = 2:35 m). The intra-rater reliability of both Raters A (ICC = 0:92, 95% CI 0.53–0.98, p = 0:003; SEM = 35 m, MDC = 97 m) and B (ICC = 0:90, 95% CI 0.76–0.96, p < 0:001; SEM = 32 m, MDC = 88 m) were good. In a sample of 32 healthy participants, both ISWT-CHN and ISWT-ENG instruction results showed low-positive correlations with the VO2max determined from the cardiopulmonary exercise test (r = 0.439, p < 0:001; r = 0:448, p < 0:001). There is a very high correlation between ISWT-ENG and ISWT-CHN results with no statistically signi¯cant di®erences (r = 0:967, p < 0:001). The construct and criterion validity of the ISWT-CHN were established.

Conclusion: This study developed the ISWT-CHN and showed that it is a valid and reliable measure conceptually comparable to the ISWT-ENG. It will benefit the determination of functional exercise capacity in Chinese-speaking populations.

Funding

R-MOE-A404-H009

History

Journal/Conference/Book title

Hong Kong Physiotherapy Journal

Publication date

2022-09-01

Version

  • Published

Project ID

  • 7342 (R-MOE-A404-H009) Validity and Reliability of the Incremental Shuttle Walk Test After Adaptation to Chinese (Mandarin) Language.

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