TY -的T1 6分钟步行试验在健康children: reliability and validity JF - European Respiratory Journal JO - Eur Respir J SP - 1057 LP - 1060 DO - 10.1183/09031936.05.00134904 VL - 25 IS - 6 AU - Li, A. M. AU - Yin, J. AU - Yu, C. C. W. AU - Tsang, T. AU - So, H. K. AU - Wong, E. AU - Chan, D. AU - Hon, E. K. L. AU - Sung, R. Y1 - 2005/06/01 UR - //www.qdcxjkg.com/content/25/6/1057.abstract N2 - 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. ER -