A cadence based sub-maximal field test for the prediction of peak oxygen consumption in elite wheelchair basketball athletes

James J. Laskin, Dustin Slivka, Michael Frogley

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8 Scopus citations


Twenty-four elite wheelchair basketball athletes were recruited to assess the feasibility and concurrent validity of a cadence based sub-maximal field test. Sub-maximal trials consisted of two, five-minute workloads at 60 and 80 pushes per minute (pushes/min). The field test was performed by wheeling around an indoor basketball court to the beep of a metronome. Peak oxygen consumption, while arm cranking, was determined using an automated metabolic measurement system. Stepwise forward linear regression was used to develop prediction equations for peak VO2 (VO2 peak) for both cadences, resulting in the following equations; 60 pushes/min VO2 peak (L/min) = 0.74 + 0.31(classification) + 0.003(distance covered) - 0.15(RPE), r 2 = 0.73, SEE = 0.48 L/min; 80 pushes/min VO2 peak (L/min) = 1.50 + 0.0029(distance covered) - 0.16(RPE) + 0.235(classification), r 2 = 0.74, SEE = 0.45 L/min. There were no significant differences between the actual and the estimated VO2 peak values at either cadence. In addition the estimated VO2 peak from both cadence equations were linearly correlated (r = 0.87). Bland-Altman plots revealed no cases where the difference between the actual and predicted VO2 peak was greater than two standard deviations beyond the mean of the differences, demonstrating good agreement. Due to the homogeneity of the sample, the test-retest reliability (interclass correlation coefficients) was moderate to poor for select variables; HR = 0.42, RPE = 0.63, distance covered = 0.50 and HR = 0.65, RPE = 0.70, distance covered = 0.62 for 60 and 80 pushes/min, respectively. The results of this preliminary study indicate that this sub-maximal field test is efficient, simple to perform, and predicts VO 2 peak in competitive wheelchair basketball athletes with similar accuracy to prediction equations designed for able-bodied individuals.

Original languageEnglish
Pages (from-to)8-18
Number of pages11
JournalJournal of Exercise Physiology Online
Issue number1
StatePublished - Feb 2004


  • Cardiorespiratory fitness test
  • Lower-limb disabled
  • Rating of perceived exertion
  • Wheelchair user


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