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Criterion-related validity of the 20-m shuttle run test in youths aged 13-19 years.
- Source :
- Journal of Sports Sciences; Jul2009, Vol. 27 Issue 9, p899-906, 8p, 2 Charts, 1 Graph
- Publication Year :
- 2009
-
Abstract
- We assessed the agreement between maximal oxygen consumption ([Vdot]O2max) measured directly when performing the 20-m shuttle run test and estimated [Vdot]O2max from five different equations (i.e. Barnett, equations a and b; Leger; Matsuzaka; and Ruiz) in youths. The 20-m shuttle run test was performed by 26 girls (mean age 14.6 years, s = 1.5; body mass 57.2 kg, s = 8.9; height 1.60 m, s = 0.06) and 22 boys (age 15.0 years, s = 1.6; body mass 63.5 kg, s = 11.5; height 1.70 m, s = 0.01). The participants wore a portable gas analyser (K4b2, Cosmed) to measure [Vdot]O2 during the test. All the equations significantly underestimated directly measured [Vdot]O2max, except Barnett's (b) equation. The mean difference ranged from 1.3 ml · kg-1 · min-1 (Barnett (b)) to 5.5 ml · kg-1 · min-1 (Leger). The standard error of the estimate ranged from 5.3 ml · kg-1 · min-1 (Ruiz) to 6.5 ml · kg-1 · min-1 (Leger), and the percentage error ranged from 21.2% (Ruiz) to 38.3% (Leger). The accuracy of the equations available to estimate [Vdot]O2max from the 20-m shuttle run test is questionable at the individual level. Furthermore, special attention should be paid when comparisons are made between studies (e.g. population-based studies) using different equations. The results of the present study suggest that Barnett's (b) equation provides the closest agreement with directly measured [Vdot]O2max (cardiorespiratory fitness) in youth. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02640414
- Volume :
- 27
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Journal of Sports Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 43430392
- Full Text :
- https://doi.org/10.1080/02640410902902835