A new valid and reliable windtrainer VO2max protocol.
J Sports Med Phys Fitness
; 47(3): 300-3, 2007 Sep.
Article
en En
| MEDLINE
| ID: mdl-17641596
ABSTRACT
AIM:
Maximal oxygen uptake (VO(2max)) cycling protocols usually require expensive laboratory ergometers where the athlete is unaccustomed to the cycling position. Recently, we developed a VO(2max) speed-ramped protocol with an indoor cycling simulator (Cateye Windtrainer WT) allowing cyclists to use their own bicycles during the VO(2max) test. The aim of this study was to test the validity of the WT protocol by comparing it with a traditional (TD) resistance-ramped protocol using an electronically braked ergometer. In addition, the retest reliability of the WT protocol was also determined.METHODS:
Twenty experienced cyclists randomly completed 6 VO(2max) protocols consisting of one familiarization trial and two tests on the WT and TD protocols.RESULTS:
There were minimal differences in maximal oxygen uptake values between protocols (WT 64.1+/-7.1, TD 63.3+/-7.4 mL/kg/min). The variability in the difference of the means between the two protocols was 0.8 mL/kg/min (95% confidence interval CI -0.26-2.02), the coefficient of variation (CV) was 2.8% (95%CI 2.2-4.2%) and the interclass correlation was r=0.94 (P<0.01; 95%CI 0.86-0.98). The intratest difference within the WT protocol was 1.5% (95%CI -1.9-5%), CV=5.3% (95%CI 4.1-8%) and the retest correlation was r=0.81 (P<0.01; 95%CI 0.57-0.92).CONCLUSION:
The WT speed-ramped protocol is a valid and reliable method to assess VO(2max).
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Banco de datos:
MEDLINE
Asunto principal:
Consumo de Oxígeno
/
Ciclismo
Límite:
Adult
/
Humans
/
Male
Idioma:
En
Año:
2007
Tipo del documento:
Article