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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS
A Journal on Applied Physiology, Biomechanics, Preventive Medicine,
Sports Medicine and Traumatology, Sports Psychology
Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111
The Journal of Sports Medicine and Physical Fitness 2001 September;41(3):318-23
Reliability of a 5-min running field test and its accuracy in V.O2max evaluation
Tong T. K., Fu F. H., Chow B. C.
From the Department of Physical Education, Hong Kong Baptist University, Hong Kong, China
Background. Five-min running field test (5_RFT) was established for determining individuals’ maximal aerobic velocity (Vamax) and functional aerobic capacity (V.O2peak) 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 (V.O2max).
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 V.O2max 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 V.O2max evaluation, regression analysis revealed that the Vamax(5) explained 35.0% of the variance of measured V.O2max (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 V.O2max with reasonable accuracy in young males