Data_Sheet_2_The Yo-Yo Intermittent Tests: A Systematic Review and Structured Compendium of Test Results.ZIP Boris Schmitz Carina Pfeifer Kiana Kreitz Matthias Borowski Andreas Faldum Stefan-Martin Brand 10.3389/fphys.2018.00870.s002 https://frontiersin.figshare.com/articles/dataset/Data_Sheet_2_The_Yo-Yo_Intermittent_Tests_A_Systematic_Review_and_Structured_Compendium_of_Test_Results_ZIP/6742046 <p>Background: Although Yo-Yo intermittent tests are frequently used in a variety of sports and research studies to determine physical fitness, no structured reference exists for comparison and rating of test results. This systematic review of the most common Yo-Yo tests aimed to provide reference values for test results by statistical aggregation of published data.</p><p>Methods: A systematic literature search for articles published until August 2017 was performed in MEDLINE, Web of Science, SPORTDiscus and Google Scholar. Original reports on healthy females and males ≥16 years were eligible for the analysis. Sub-maximal test versions and the Yo-Yo Intermittent Recovery Level 1 Children's test (YYIR1C) were not included.</p><p>Results: 248 studies with 9,440 participants were included in the structured analysis. The Yo-Yo test types most frequently used were the Yo-Yo Intermittent Recovery Level 1 (YYIR1, 57.7%), the Yo-Yo Intermittent Recovery Level 2 (YYIR2, 28.0%), the Yo-Yo Intermittent Endurance Level 2 (YYIE2, 11.4%), and the Yo-Yo Intermittent Endurance Level 1 (YYIE1, 2.9%) test. For each separate test, reference values (global means and percentiles) for sports at different levels and both genders were calculated.</p><p>Conclusions: Our analysis provides evidence that Yo-Yo intermittent tests reference values differ with respect to the type and level of sport performed.The presented results may be used by practitioners, trainers and athletes to rate Yo-Yo intermittent test performance levels and monitor training effects.</p> 2018-07-05 04:11:44 Yo-Yo IR Yo-Yo IE Yo-Yo test performance testing field test physical fitness exercise capacity