Comparing the Yo-Yo intermittent and Bronco tests and their associations with match demands among amateur rugby union referees

Ricardo Tannhauser Sant'Anna, Simon Roberts, Lee Moore, Wilbur Kraak, Keith Stokes

Research output: Contribution to journalArticlepeer-review

Abstract

This study compared the Yo-Yo intermittent recovery level 1 (YYIR 1) and Bronco tests among amateur rugby referees and examined whether the results of these tests were associated with actual match demands. Sixty-seven (65 male, 2 female; 30 ± 11 years; 77.4 ± 13.1 kg; 175 ± 8 cm) amateur rugby referees participated. Match demands were assessed using Global Navigation Satellite System technology and heart rate (HR) recordings. Significant correlations (all p < 0.05) were found between the YYIR 1 and Bronco test results (r: −0.88). The YYIR 1 test was significantly correlated with match demands including total (r: 0.56) and high-intensity (r: 0.70) distance covered, maximal speed reached (r: 0.73), and the number of high-intensity accelerations (r: 0.54) and sprints (r: 0.68) completed. Furthermore, YYIR 1 test maximum HR was significantly correlated with maximum HR (r: 0.72), average HR (r: 0.54), and internal load (r: 0.55) during match play. In contrast, the Bronco test was only significantly correlated with match demands including maximal speed reached (r: −0.68) and the number of high-intensity accelerations (r: −0.61). Moreover, Bronco test maximum HR was significantly correlated with maximal (r: 0.84) and average HR (r: 0.73) during match play. The results suggest that while the YYIR 1 and Bronco tests might both be efficient tools to guide training prescription, the YYIR 1 test might be as the more valuable test to assess match fitness in rugby referees.

Original languageEnglish
JournalInternational Journal of Sports Science & Coaching
Early online date19 Apr 2022
DOIs
Publication statusE-pub ahead of print - 19 Apr 2022

Keywords

  • Acceleration, global navigation tracking, heart rate, intermittent exercise, sports officials, sprints

ASJC Scopus subject areas

  • Social Sciences (miscellaneous)

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