Conversion of the YYIR1 Results to VO2max

The Yo-Yo Intermittent Recovery Test Level 1 (YYIR1) is a common fitness test for team sport athletes. 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 (m) × 0.0084 + 36.4

 

Yo-Yo IR1 Test Conversion to VO2max

Test Results (Speed Level: Shuttles) total distance (m) VO2max(ml/kg/min)
5:1 40 36.7
9:1 80 37.1
11:1 120 37.4
11:2 160 37.7
12:1 200 38.1
12:2 240 38.4
12:3 280 38.8
13:1 320 39.1
13:2 360 39.4
13:3 400 39.8
13:4 440 40.1
14:1 480 40.4
14:2 520 40.8
14:3 560 41.1
14:4 600 41.4
14:5 640 41.8
14:6 680 42.1
14:7 720 42.4
14:8 760 42.8
15:1 800 43.1
15:2 840 43.5
15:3 880 43.8
15:4 920 44.1
15:5 960 44.5
15:6 1000 44.8
15:7 1040 45.1
15:8 1080 45.5
16:1 1120 45.8
16:2 1160 46.1
16:3 1200 46.5
16:4 1240 46.8
16:5 1280 47.2
16:6 1320 47.5
16:7 1360 47.8
16:8 1400 48.2
17:1 1440 48.5
17:2 1480 48.8
17:3 1520 49.2
17:4 1560 49.5
17:5 1600 49.8
17:6 1640 50.2
17:7 1680 50.5
17:8 1720 50.8
18:1 1760 51.2
18:2 1800 51.5
18:3 1840 51.9
18:4 1880 52.2
18:5 1920 52.5
18:6 1960 52.9
18:7 2000 53.2
18:8 2040 53.5
19:1 2080 53.9
19:2 2120 54.2
19:3 2160 54.5
19:4 2200 54.9
19:5 2240 55.2
19:6 2280 55.6
19:7 2320 55.9
19:8 2360 56.2
20:1 2400 56.6
20:2 2440 56.9
20:3 2480 57.2
20:4 2520 57.6
20:5 2560 57.9
20:6 2600 58.2
20:7 2640 58.6
20:8 2680 58.9
21:1 2720 59.2
21:2 2760 59.6
21:3 2800 59.9
21:4 2840 60.3
21:5 2880 60.6
21:6 2920 60.9
21:7 2960 61.3
21:8 3000 61.6
22:1 3040 61.9
22:2 3080 62.3
22:3 3120 62.6
22:4 3160 62.9
22:5 3200 63.3
22:6 3240 63.6
22:7 3280 64.0
22:8 3320 64.3
23:1 3360 64.6
23:2 3400 65.0
23:3 3440 65.3
23:4 3480 65.6
23:5 3520 66.0
23:6 3560 66.3
23:7 3600 66.6
23:8 3640 67.0

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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