Article Text

other Versions

PDF
Establishing maximal oxygen uptake in young people during a ramp cycle test to exhaustion
  1. Alan R Barker (a.r.barker{at}exeter.ac.uk)
  1. University of Exeter, United Kingdom
    1. Craig A Williams (c.a.williams{at}exeter.ac.uk)
    1. University of Exeter, United Kingdom
      1. Andrew M Jones (a.m.jones{at}exeter.ac.uk)
      1. University of Exeter, United Kingdom
        1. Neil Armstrong (n.armstrong{at}exeter.ac.uk)
        1. University of Exeter, United Kingdom

          Abstract

          This study tested the hypotheses that: 1) secondary criteria (RER, heart rate, blood lactate) traditionally used to verify the determination of VO2max in children can result in the acceptance of a ‘sub-maximal’ VO2max or falsely reject a ‘true’ VO2max; and 2) the VO2peak recorded during a ramp test in children is comparable to the VO2peak achieved during supra-maximal testing. Thirteen children (9-10 y) completed a ramp cycle test to exhaustion to determine their VO2peak. After 15 min recovery, the participants performed a supra-maximal cycle test to exhaustion at 105% of their ramp test peak power. Compared to the VO2peak during the ramp test, a significantly lower VO2 was recorded at an RER of 1.00 (1.293 L•min-1 [SD 0.265] vs. 1.681 L•min-1 [SD 0.295], P<0.001, n=12), and at a heart rate of 195 beats•min-1 (1.556 L•min-1 [SD 0.265] vs. 1.721 L•min-1 [SD 0.318], P<0.001, n=10) and at 85% of age predicted maximum (1.345 L•min-1 [SD 0.228] vs. 1.690 L•min-1 [SD 0.284], P<0.001, n=13). Supra-maximal testing yielded a VO2peak that was not significantly different from the ramp test (1.615 L•min-1 [SD 0.307] vs. 1.690 L•min-1 [SD 0.284], P=0.090, respectively). The use of secondary criteria to verify a maximal effort in young people during ramp cycling exercise may result in the acceptance of a ‘sub-maximal’ VO2max. As supra-maximal testing elicits a VO2peak similar to the ramp protocol, thus satisfying the plateau criterion, the use of such tests are recommended as the appropriate method of confirming a ‘true’ VO2max with children.

          Statistics from Altmetric.com

          • Test

            Request permissions

            If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.