Utility of a Non-Exercise VO2max Prediction Model for Designing Ramp Test Protocols

F. A. Cunha; A. Midgley; R. Montenegro; F. Vasconcellos; P. Farinatti

doi:10.1055/s-0034-1395590

International Journal of Sports Medicine, Table of Contents

Int J Sports Med 2015; 36(10): 796-802
DOI: 10.1055/s-0034-1395590

Training & Testing

Utility of a Non-Exercise VO_2max Prediction Model for Designing Ramp Test Protocols

F. A. Cunha

¹Laboratory of Physical Activity and Health Promotion, Rio de Janeiro State University, Rio de Janeiro, Brazil

²Medical Sciences Graduate Program, Faculty of Medical Sciences, Rio de Janeiro State University, Rio de Janeiro, Brazil

,

A. Midgley

³Department of Sport and Physical Activity, Edge Hill University, Ormskirk, Lancashire, England

,

R. Montenegro

¹Laboratory of Physical Activity and Health Promotion, Rio de Janeiro State University, Rio de Janeiro, Brazil

,

F. Vasconcellos

¹Laboratory of Physical Activity and Health Promotion, Rio de Janeiro State University, Rio de Janeiro, Brazil

,

P. Farinatti

¹Laboratory of Physical Activity and Health Promotion, Rio de Janeiro State University, Rio de Janeiro, Brazil

⁴Physical Activity Sciences Graduate Program, Salgado de Oliveira University, Niterói, Rio de Janeiro, Brazil

› Author Affiliations

Abstract

This study investigated the validity of determining the final work rates of cycling and walking ramp-incremented maximal cardiopulmonary exercise tests (CPETs) using a non-exercise model to predict maximal oxygen uptake VO_2max and the American College of Sports Medicine ACSM’s metabolic equations. The validity of using this methodology to elicit the recommended test duration of between 8 and 12 min was then evaluated. First, 83 subjects visited the laboratory once to perform a cycling (n=49) or walking (n=34) CPET to investigate the validity of the methodology. Second, 25 subjects (cycling group: n=13; walking group: n=12) performed a CPET on 2 separate days to test the reliability of CPET outcomes. Observed VO_2max was 1.0 ml·kg⁻¹·min⁻¹ lower than predicted in the cycling CPET (P=0.001) and 1.4 ml·kg⁻¹·min⁻¹ lower in the walking CPET (P=0.001). Only one of the 133 conducted CPETs was outside the test duration range of 8–12 min. Test-retest reliability was high for all CPET outcomes, with intraclass correlation coefficients of 0.90 to 0.99. In conclusion, the non-exercise model is a valid and reliable method for establishing the final work rate of cycling and walking CPETs for eliciting test durations of between 8 and 12 min.

Key words

cycling - walking - cardiopulmonary exercise testing - ergometry - physical fitness - reproducibility

Full Text

References

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