Conversion of the YYIR2 Results to VO2max

The Yo-Yo Intermittent Recovery Test Level 2 (YYIR2) is a fitness test for highly trained team sport athletes (though the Yo-Yo IR Level 1 is more commonly used). Participants run out and back on a 20-meter course, followed by a 10-second rest period between each run. The required running speed increases until they are unable to continue. Results on this test correlate with aerobic fitness scores, and can be converted to a VO2max score. You can use our calculator to work out the VO2max, or use this conversion chart, based on the same formula (Bangsbo et al. 2008), which is:

VO2max (ml/min/kg) = distance run × 0.0136 + 45.3

 

Yo-Yo IR1 Test Conversion to VO2max

Test Results (Speed Level: Shuttles) total distance (m) VO2max(ml/kg/min)
11:1 40 45.8
15:1 80 46.4
17:1 120 46.9
17:2 160 47.5
18:1 200 48.0
18:2 240 48.6
18:3 280 49.1
19:1 320 49.7
19:2 360 50.2
19:3 400 50.7
19:4 440 51.3
20:1 480 51.8
20:2 520 52.4
20:3 560 52.9
20:4 600 53.5
20:5 640 54.0
20:6 680 54.5
20:7 720 55.1
20:8 760 55.6
21:1 800 56.2
21:2 840 56.7
21:3 880 57.3
21:4 920 57.8
21:5 960 58.4
21:6 1000 58.9
21:7 1040 59.4
21:8 1080 60.0
22:1 1120 60.5
22:2 1160 61.1
22:3 1200 61.6
22:4 1240 62.2
22:5 1280 62.7
22:6 1320 63.3
22:7 1360 63.8
22:8 1400 64.3
23:1 1440 64.9
23:2 1480 65.4
23:3 1520 66.0
23:4 1560 66.5
23:5 1600 67.1
23:6 1640 67.6
23:7 1680 68.1
23:8 1720 68.7
24:1 1760 69.2
24:2 1800 69.8
24:3 1840 70.3
24:4 1880 70.9
24:5 1920 71.4
24:6 1960 72.0
24:7 2000 72.5
24:8 2040 73.0
25:1 2080 73.6
25:2 2120 74.1
25:3 2160 74.7
25:4 2200 75.2
25:5 2240 75.8
25:6 2280 76.3
25:7 2320 76.9
25:8 2360 77.4
26:1 2400 77.9
26:2 2440 78.5
26:3 2480 79.0
26:4 2520 79.6
26:5 2560 80.1
26:6 2600 80.7
26:7 2640 81.2
26:8 2680 81.7
27:1 2720 82.3
27:2 2760 82.8
27:3 2800 83.4
27:4 2840 83.9
27:5 2880 84.5
27:6 2920 85.0
27:7 2960 85.6
27:8 3000 86.1
28:1 3040 86.6
28:2 3080 87.2
28:3 3120 87.7
28:4 3160 88.3
28:5 3200 88.8
28:6 3240 89.4
28:7 3280 89.9
28:8 3320 90.5
29:1 3360 91.0
29:2 3400 91.5
29:3 3440 92.1
29:4 3480 92.6
29:5 3520 93.2
29:6 3560 93.7
29:7 3600 94.3
29:8 3640 94.8
Reference: Jens Bangsbo, F. Marcello Iaia and Peter Krustrup, (2008) The Yo-Yo Intermittent Recovery Test: A Useful Tool for Evaluation of Physical Performance in Intermittent Sports, Sports Medicine 2008; 38 (1): 37-51.

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