Children's Yo-Yo Test (YYIR1C)

In addition to the six official yo-yo test versions as created by Jens Bangsbo, there are a few modified versions of the yo-yo test that have made changes to the original protocols for a specific purpose, such as this children's version where the participants run a distance less than the original 20m, making the test more suitable for younger athletes who would not be able to last very long on the standard version.

A modified version of the yo-yo test has been created to be more suitable for children - the Intermittent Recovery Level 1 Children's test, or YYIR1C (Ahler et al. 2012). This test version uses the same audio recording as the Yo-Yo Intermittent Recovery Level 1 test, though 2 × 16 meters shuttle runs (rather than 2 × 20m) and 2 × 4 meters for active recovery (rather than 2 × 5m) in 10 seconds.

Diagram of the Intermittent Recovery Level 1 Children's test, or YYIR1C

In a pilot study by Ahler et al. (2012), 8 of 11 children performed only 120–400 m when using the original Yo–Yo IR1 protocol, and therefore only exercised for less than two minutes. Using the modified protocol, with 32 participants aged from 6-9 years, the total duration of the test varied from 3 to 12 min.


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