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|Title: ||The six-minute walk test in healthy children: reliability and validity|
|Authors: ||Li, A. M.|
Yu, C. C. W.
So, H. K.
Hon, E. K. L.
|Issue Date: ||2005|
|Publisher: ||European Respiratory Society|
|Abstract: ||The aim of this study was to assess the reliability and validity of the 6-min walk test (6MWT) in healthy children.
Chinese secondary school students were randomly recruited. They attended the current authors' unit on two occasions, separated by 2 weeks. Physical examination and standardised maximum incremental exercise testing on a treadmill were performed on the first visit. Spirometry and 6MWT were carried out on the second visit. A randomly selected subgroup was invited to return for repeat 6MWT at an interval of 2–4 weeks.
Seventy-eight subjects were recruited; however, four failed to achieve maximal effort on exercise test. The final group included 43 young females and the mean±sd age of the subjects was 14.2±1.2 yrs. Physical examination was unremarkable in all cases. The mean±sd per cent predicted forced expiratory volume in one second was 91.4±10.2%. Concurrent validity was demonstrated by good correlation between the 6-min walking distance and maximum oxygen uptake determined on the exercise treadmill. Test–retest reliability was undertaken in 52 subjects, and the intraclass correlation coefficient (95% confidence interval) was calculated as 0.94 (0.89–0.96). In addition, Bland and Altman plots demonstrated a high degree of repeatability.
In healthy children, the 6-min walk test is a reliable and valid functional test for assessing exercise tolerance and endurance.|
|Appears in Collections:||Artigos|
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