Print Email Facebook Twitter The steep ramp test in healthy children and adolescents: Reliability and validity Title The steep ramp test in healthy children and adolescents: Reliability and validity Author Bongers, B.C. de Vries, S.I. Helders, P.J.M. Takken, T. Publication year 2013 Abstract PURPOSE: This study aimed to examine the reliability and validity of the steep ramp test (SRT), a feasible, maximal exercise test on a cycle ergometer that does not require the use of respiratory gas analysis, in healthy children and adolescents.METHODS: Seventy-five children were randomly divided in a reliability group (n = 37, 17 boys and 20 girls; mean ± SD age = 13.86 ± 3.22 yr), which performed two SRTs within 2 wk, and a validity group (n = 38, 17 boys and 21 girls; mean ± SD age = 13.85 ± 3.20 yr), which performed both an SRT and a regular cardiopulmonary exercise test (CPET) with respiratory gas analysis within 2 wk. Peak work rate (WRpeak) was the main outcome of the SRT. Peak oxygen uptake (V˙O2peak) was the main outcome of the CPET. Reliability was examined with the intraclass correlation coefficient and a Bland and Altman plot, whereas validity was assessed using Pearson correlation coefficients and stepwise linear regression analysis.RESULTS: Reliability statistics for the WRpeak values attained at the two SRTs showed an intraclass correlation coefficient of 0.986 (P < 0.001). The average difference between the two SRTs was -6.4 W, with limits of agreement between +24.5 and -37.5 W. A high correlation between WRpeak attained at the SRT and the V˙O2peak achieved during the CPET was found (r = 0.958; P < 0.001). Stepwise linear regression analysis provided the following prediction equation: V˙O2peak (mL·min) = (8.262WRpeak SRT) + 177.096 (R = 0.917, SEE = 237.4).CONCLUSION: The results suggest that the SRT is a reliable and valid exercise test in healthy children and adolescents, which can be used to predict V˙O2peak. Subject HumanLS - Life StyleBSS - Behavioural and Societal SciencesHealthy for LifeHealthHealthy Livingexercise testingchildrenexercise To reference this document use: http://resolver.tudelft.nl/uuid:70f51805-b225-4aa7-a54b-7e372cbad314 TNO identifier 469484 Source Medicine and science in sports and exercise, 45 (2), 366-371 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.