Reliability of a 5-min running field test and its accuracy in V̇O2max evaluation

Tom K K TONG*, Frank H K FU, Bik Chu CHOW

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Background. Five-min running field test (5_RFT) was established for determining individuals' maximal aerobic velocity (Vmax) and functional aerobic capacity (V̇O2peak) during horizontal run. We determined the number of trials required for establishing high reliability of the 5_RFT and examined its accuracy in evaluating individuals' maximal aerobic capacity (V̇O2max). Methods. The Vamax(5) recorded during the 5_RFT on four separate days was compared in 45 subjects (14 male, 31 female, 17.0±0.2 yrs) of various levels of physical fitness. The accuracy of V̇O2max evaluation using Vamax(5) was examined via regression analysis in additional 23 male subjects (20.7±0.3 yrs). Results. The mean correlation coefficient of Vamax(5) among four trials was 0.94. Intraclass reliability coefficient across all trials was 0.98. For trial 3 and 4, the mean value of subjects' Vamax(5) was higher than that of trial 1 and 2. Vamax(5) of trial 2 was also higher than that of trial 1 while no difference was found between trial 3 and 4. F-test of equality of variances demonstrated similar sample variance of Vamax(5) in all trials. Within-subject coefficient of variation in Vamax(5) was 3.7% for all trials was reduced to 2.4% for trial 3 vs 4. For examining the accuracy in V̇O2max evaluation, regression analysis revealed that the Vamax(5) explained 35.0% of the variance of measured V̇O2max (SEE = 5.64 ml · kg-1 · min-1). Conclusions. The 5_RFT is reliable in determining Vamax(5). Nevertheless, two familiarization sessions are recommended for achieving the best performance in the test. The 5_RFT cannot evaluate V̇O2max with reasonable accuracy in young males.

Original languageEnglish
Pages (from-to)318-323
Number of pages6
JournalJournal of Sports Medicine and Physical Fitness
Volume41
Issue number3
Publication statusPublished - 2001

Scopus Subject Areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

User-Defined Keywords

  • Aerobic capacity
  • Familiarization
  • Maximal aerobic velocity
  • Maximum oxygen consumption
  • Running performance

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