The Yo–Yo intermittent recovery test in basketball players

Summary The purpose of this study was to examine the physiological correlates of the Yo–Yo intermittent recovery test level 1 (Yo–Yo IR1) in basketball players. Twenty-two male basketball players (means ± S.D., body mass 72.4 ± 11.4 kg, height 181.7 ± 6.9 cm, age 16.8 ± 2.0 years) were tested for ma...

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Bibliographic Details
Published in:Journal of science and medicine in sport 2008-04, Vol.11 (2), p.202-208
Main Authors: Castagna, Carlo, Impellizzeri, Franco M, Rampinini, Ermanno, D’Ottavio, Stefano, Manzi, Vincenzo
Format: Article
Language:English
Subjects:
Adolescent
Basketball - physiology
Correlation analysis
Exercise - physiology
Exercise Test - methods
Exercise Tolerance - physiology
Fatigue
Field study
Field testing
Humans
Intermittent exercise
Line drill
Male
Oxygen Consumption - physiology
Physical fitness
Physical Medicine and Rehabilitation
Shuttle running
Soccer
Sports Medicine
Validity
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Summary:Summary The purpose of this study was to examine the physiological correlates of the Yo–Yo intermittent recovery test level 1 (Yo–Yo IR1) in basketball players. Twenty-two male basketball players (means ± S.D., body mass 72.4 ± 11.4 kg, height 181.7 ± 6.9 cm, age 16.8 ± 2.0 years) were tested for maximal oxygen uptake (VO2max ), ventilatory threshold (VT) and running economy (RE) on a motorized treadmill. Lower limb explosive strength and anaerobic-capacity was assessed using vertical jumps (CMJ), 15 m shuttle running sprint (15 mSR) and line drill (LD), respectively. The same test battery was replicated after an experimental basketball game in order to assess selective effect of fatigue on physical performance. Pre to post-game CMJ (40.3 ± 5.7 versus 39.9 ± 5.9 cm) and 15 mSR (5.80 ± 0.25 versus 5.77 ± 0.22 s) performances were not significantly different ( p > 0.05). LD performance decreased significantly post-game (from 26.7 ± 1.3 to 27.7 ± 2.7 s, p < 0.001). Yo–Yo IR1 performances (m) were significantly related to VO2max ( r = 0.77, p = 0.0001), speed at VO2max ( r = 0.71, p = 0.0001) and %VO2max at VT ( r = −0.60, p = 0.04). Yo–Yo IR1 performance was significantly correlated to post-game LD decrements ( r = −0.52, p = 0.02). These findings show that Yo–Yo IR1 may be considered as a valid basketball-specific test for the assessment of aerobic fitness and game-related endurance.
ISSN:1440-2440
1878-1861
DOI:10.1016/j.jsams.2007.02.013