Reliability and validity of the Yo-Yo intermittent recovery test level 1 in young soccer players |
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| Authors: | Dieter Deprez Aaron James Coutts Matthieu Lenoir Job Fransen Johan Pion Renaat Philippaerts |
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| Institution: | 1. Movement and Sports Sciences, Ghent University, Ghent, BelgiumDieter.Deprez@UGent.be;3. School of Leisure, Sport and Tourism, University of Technology Sydney, Lindfield, NSW Australia;4. Movement and Sports Sciences, Ghent University, Ghent, Belgium;5. Faculty of Medicine and Health Sciences, Movement and Sports Sciences,Ghent University, Ghent, Belgium |
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| Abstract: | AbstractThe present study investigated the test-retest reliability from the Yo-Yo IR1 (distance and heart rate responses), and the ability of the Yo-Yo IR1 to differentiate between elite and non-elite youth soccer players. A total of 228 youth soccer players (11–17 years) participated: 78 non-elite players to examine the test-retest reliability within 1 week, added with 150 elite players to investigate the construct validity. The main finding was that the distance covered was adequately reproducible in the youngest age groups (U13 and U15) and highly reproducible in the oldest age group (U17). Also, the physiological responses were highly reproducible in all age groups. Moreover, the Yo-Yo IR1 test had a high-discriminative ability to distinguish between elite and non-elite young soccer players. Furthermore, age-related standards for the Yo-Yo IR1 established for elite and non-elite groups in this study may be used for comparison of other young soccer players. |
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| Keywords: | field test endurance heart rate talent identification talent development |
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