Furthermore, the Yo-Yo IE2 test illustrates sensitivity by differentiating intermittent exercise performance of female players in various competitive levels, stages of the season and playing positions.Ĭompetitive level female soccer heart rate match running performance physical capacity playing position. The data demonstrate that the Yo-Yo IE2 test is reproducible and is an indicator of the match-specific physical capacity of female soccer players. There are two versions of each Yo-Yo Intermittent Test, a beginners Level. Performances in the Yo-Yo IE2 test were greater (P < 0.05) in the middle and the end of the season compared with the preparation period for elite youth female players (1767 ± 5 ± 503 vs 1564 ± 504 m) and in elite senior female players, Yo-Yo IE2 test performance increased by 14% (P < 0.01) after completing 4 weeks of intense training prior to the FIFA Women's World Cup Finals (2049 ± 283 vs 1803 ± 342 m). The Yo-Yo Intermittent Tests are similar to the Yo-Yo Endurance Test (a variation of the beep test), except in the intermittent tests the participants have a short active break (5 and 10 seconds for the intermittent endurance and intermittent recovery test, respectively). A large correlation was also obtained between Yo-Yo IE2 test performance and (r = 0.68 P < 0.01). Large correlations were observed between Yo-Yo IE2 test performance and the total and high-intensity distance covered (r = 0.55 P < 0.05) during elite senior soccer matches (r = 0.70 P < 0.01). For elite senior female players, wide midfielders (2057 ± 550 m) had a higher Yo-Yo IE2 test performance (P < 0.05) than central defenders (1588 ± 534 m) and attackers (1516 ± 401 m), but not central midfielders (1764 ± 473 m) or full-backs (1964 ± 522 m). The original objective of the beep test is to measure aerobic fitness and predict VO2max, whilst the Yo-Yo test was designed to be more specific to the many intermittent-type team sports, and test the ability to repeatedly perform sprint intervals over an extended period. Elite senior female players' Yo-Yo IE2 test performances were better (P < 0.01) than elite youth, domestic and sub-elite players (mean ± standard deviation 1774 ± 532 vs 1490 ± 447, 1261 ± 449, and 994 ± 373 m). Test-retest coefficient of variation (CV) in Yo-Yo IE2 test performance in domestic female players was 4.5%. Elite senior (n = 92), youth (n = 42), domestic (n = 46) and sub-elite female soccer players (n = 19) carried out the Yo-Yo IE2 test on numerous occasions across the season. The time to complete each repetition increases as time goes on. You do a repetition then you rest for a given amount of time. The aim of this study was to evaluate the application of the Yo-Yo intermittent endurance test level 2 (Yo-Yo IE2) to elite female soccer populations. Yo Yo Intermittent Recovery Test for soccer- This is a beep test as well but is different than the one above in that you dont run continuously for the whole fitness test.
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