Yo-Yo intermittent recovery test 2, also known as Yo-Yo IR2 or Yo-Yo Test Level 2.Yo-Yo intermittent recovery test 1, also known as Yo-Yo IR1 or Yo-Yo Test Level 1.It has become a highly popular test used in team sports such as football and rugby, which require short intense bursts of running followed by a short period of recovery, due to its specificity and practicality. This test is used to assess an athlete’s ability to repeatedly perform high intensity exercise. The Yo-Yo intermittent recovery test (IRT) is a maximal test, which involves athletes repeatedly completing 2 x 20m shuttle runs at increasing speeds, with a 10 second recovery period between each shuttle, until exhaustion. What is the yo-yo intermittent recovery test? In this article, we’re going to cover what the Yo-Yo test is, how to perform the test and provide normative data for athletes competing in various sports and at various levels.
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