The Yo-Yo intermittent recovery test in basketball players

Carlo Castagna, Franco M. Impellizzeri, Ermanno Rampinini, Stefano D'Ottavio, Vincenzo Manzi

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)202-208
Number of pages7
JournalJournal of Science and Medicine in Sport
Issue number2
Publication statusPublished - Apr 2008


  • Fatigue
  • Field testing
  • Intermittent exercise
  • Line drill
  • Shuttle running

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Public Health, Environmental and Occupational Health
  • Physical Therapy, Sports Therapy and Rehabilitation


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