N. prodotti: 0
Totale ordine: € 0,00
Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111
Online ISSN 1827-1928
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