Article

OBJECTIVES: To determine whether the 6-minute walk test (6MWT) is predictive of
peak oxygen consumption (Vo(2)peak) and whether the 6MWT is a clinically
applicable alternative to cardiopulmonary exercise testing (CPET) in ambulatory
adolescents and young adults with cerebral palsy (CP). DESIGN: Cross-sectional.
SETTING: University hospital and rehabilitation centers. PARTICIPANTS:
Adolescents and young adults with CP (N=41) classified in Gross Motor Function
Classification System (GMFCS) level I or II. INTERVENTIONS: Not applicable. MAIN
OUTCOME MEASURES: The covered distance during 6 minutes was measured with a 6MWT.
The Vo(2)peak was obtained with CPET on a cycle ergometer. RESULTS: Univariate
linear regression analysis was used to study the relationship between the
outcomes of both tests. A multiple linear regression analysis was performed to
determine whether Vo(2)peak could be predicted by the 6MWT, sex, body mass, and
GMFCS level. A significant relationship (P<.01) was found between the outcomes of
the 6MWT and CPET, with an explained variance of 21%. The multiple linear
regression analysis showed an explained variance of 58% and a standard error of
estimate (SEE) corresponding to 18% of the mean Vo(2)peak. CONCLUSIONS: The 6MWT
is poorly related to Vo(2)peak in ambulatory adolescents and young adults with
CP. Because of a high SEE, the multiple regression model did not allow for
prediction of Vo(2)peak from the 6MWT in ambulatory adolescents and young adults
with CP.
CI - Copyright (c) 2013 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS