Two-minute walk test: Reference equations for healthy adults in China

Jia Zhang, Xiaoshu Chen, Shiwei Huang, Yi Wang, Wei Lin, Rui Zhou and He Zou

PLOS ONE, 2018, vol. 13, issue 8, 1-10

Abstract: Background and objective: Although the six-minute walk test (6MWT) is widely used as a measure of exercise capacity, it may not be applicable in some settings and populations. This issue has led to increased use of the two-minute walk test (2MWT) to assess exercise capacity. The main objective of this study is to establish reference equations for the two-minute walk distance (2MWD) in healthy Chinese adults aged 18–85 years. Methods: A total of 973 volunteers took part in the study. We obtained verbal consent from all participants before the test, and the study design was approved by the ethics committees of Wenzhou People's Hospital. The participants performed two 2MWTs using a standardized protocol, and the longer distance was used for further analysis. Stepwise multiple regression analysis was performed using age, height and weight as independent variables and was used to establish the reference equations for the 2MWD in the male and female groups. Results: The mean walking distance for all participants was 199.1±25.81 m. Age and height were identified as independent factors that influenced the 2MWD, and they explained 35% and 34% of the variance in distance for the male and female groups, respectively. Conclusion: This study resulted in determination of reference equations for predicting the 2MWD in healthy Chinese adults. These 2MWD standards will provide useful references for medical care in some settings and populations.

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0201988

DOI: 10.1371/journal.pone.0201988

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