Dynamic Yo-Yo Test (DYY)
In addition to the six official yo-yo test versions as created by Jens Bangsbo, there are quite a few modified versions of the yo-yo test that have made changes to the original protocols for a specific purpose, such as this version for football (soccer) referees, which is designed specifically for testing football referees.
Football/soccer referees usually perform the Yo–Yo intermittent recovery level 1 test (YYIR1) as part of their fitness assessment, though this modified version which more closely replicates their movements around a pitch is sometimes
Instead of a 20m out and back shuttle, the Dynamic Yo-Yo Test involves running to various points around a football pitch following cones marking 20 meter intervals (see diagram). The same audio recording as for the YoYo Intermittent Recovery Test Level 1 is used. Sixteen marker cones, alternating in color, are placed exactly 20 meters apart around a football pitch. If you are using a FIFA Competition Pitch (regulation size, 105x68m), then you can utilize the lines and marks on the field as a reference. Participants then run from marker to marker following the audio cues of the yo-yo intermittent test. After each 40 meters, there is a rest period of 10 seconds.
Reference times for referees
| men | women | |
|---|---|---|
| International and category 1 | level 18-8 / 2,040 meters | International and category 1: level 17-8 / 1,720 meters |
| Category 2 | level 18-5 / 1,920 meters | Category 2: level 17-5 / 1,600 meters |
| Lower categories | level 18-1 / 1,760 meters | Lower categories: level 16-8 / 1,400 meters |
source: FIFA
Note: There does not seem to be any research published about this modified version of the yo-yo test. Due to the difficulty setting up the course for this test, we cannot see its use becoming widespread.
More Resources
- Purchase the YoYo Intermittent Recovery Test Level 1 mp3 file
- Other modifications of the yo-yo tests, including the Assistant Referee Intermittent Endurance Test
- About the six variations of the yo-yo fitness test
- How to determine which version of the yo-yo test you did
- Alternatives to the Yo-Yo Test
- List of information pages
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