Official protocol by Jens Bangsbo (early 1990s) · Intermittent Endurance
Yo-Yo Intermittent Endurance Test Level 2 (Yo-Yo IE2)
Higher-level intermittent endurance assessment for advanced athletes with 5-second rest periods
Primary measureDistance (m) or Level.Circuits
CategoryIntermittent Endurance
FormatPROGRESSIVE
Pacing audio0.01s Calibrated
Standardized testing protocol
Runners complete 20m shuttle runs with 5-second active recovery, starting at higher speeds (11.5 km/h).
Required field equipment
25-meter track with markers at 0, 5, and 25m, audio source with double-beep cue
Calculation formula & scoring
Time4Test automates this equation directly during the session:
Score recorded as Speed Level.Circuits or Total Distance (meters).
Scientific reference
Schmitz B. et al. (2018). The Yo-Yo Intermittent Tests: A Systematic Review. Front Physiol.
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