Testing protocol · Endurance
Yo-Yo intermittent recovery test (IR1 and IR2)
The Yo-Yo intermittent recovery test, level 1 (IR1) or level 2 (IR2), recorded by speed level and shuttle and stored as distance in metres.
Version 1 of the protocol in the StatsCenter catalogue.
Calculator
Yo-Yo test calculator: distance and estimated VO2max
Choose IR1 or IR2 and enter the level and shuttle recorded. Distance comes from the test's table; estimated VO2max from the Bangsbo equation.
The formula
Estimated VO2max (IR1) = 0.0084 × distance (m) + 36.4
Estimated VO2max (IR2) = 0.0136 × distance (m) + 45.3
Bangsbo, Iaia & Krustrup (2008), Sports Medicine 38(1):37–51, PMID 18081366. The equation estimates; it is not a clinical report and does not replace a direct measurement. It is the same calculation StatsCenter applies when a club collects.
Result
IR1 table
Each shuttle is 40 m. StatsCenter stores the distance; level and shuttle are how it is typed in.
- Level 5: shuttles 1 to 1
- Level 9: shuttles 1 to 1
- Level 11: shuttles 1 to 2
- Level 12: shuttles 1 to 3
- Level 13: shuttles 1 to 4
- Level 14: shuttles 1 to 8
- Level 15: shuttles 1 to 8
- Level 16: shuttles 1 to 8
- Level 17: shuttles 1 to 8
- Level 18: shuttles 1 to 8
- Level 19: shuttles 1 to 8
- Level 20: shuttles 1 to 8
- Level 21: shuttles 1 to 8
- Level 22: shuttles 1 to 8
- Level 23: shuttles 1 to 8
When collecting
What StatsCenter records and calculates.
Read from the product's protocol catalogue, in the version a club uses today when it creates an assessment.
Measures
- Yo-Yo distance
- m · the highest attempt counts
Collection conditions
None
Derived values
Estimated VO2max
mL·kg⁻¹·min⁻¹- IR1
- 0.0084 × distance (m) + 36.4
- IR2
- 0.0136 × distance (m) + 45.3
- Also uses
- the test level
Yo-Yo intermittent recovery test: VO2max estimate. Bangsbo, Iaia & Krustrup (2008), Sports Medicine 38(1):37–51, PMID 18081366. Source
Other protocols
Who uses it at the club
Run the Yo-Yo test with your squad in StatsCenter.
The protocol comes ready, with its attempts, its formulas and every athlete's history.
No card needed, every module included. Sign-up and the product are in Portuguese.