Analysis of cardiac response of soccer referees in competition: a case study
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Abstract
The aims of this study were: at first, to examine the cardiac response of an soccer referee both during an incremental field test and during two matches in a national Tournament Under 16 (U16), and secondly, to identify the different intensities of the soccer referee during the matches attending to his maximal heart rate (HRmax). A soccer referee of national competitive-level was equipped with a heart rate monitor (Polar Electro Oy, Kempele, Finland) and the HR was monitored during the Yo-Yo intermittent recovery level 1 (YYIR1) and during two matches of U16 National Tournament. The intensities were established attending to Edwards classification (1993). The average of HR (HRav) obtained in the YYIR1 and in the matches was 178 bpm and 161 bpm, respectively. HRav registered during matches was 127 ± 1.03 bpm approximately at 71.3% of FCmax obtained in the YYIR1. The percentage of time spent at different intensities during the matches was: 10 ± 1.95% (zone 1), 32 ± 1.65% (zone 2), 38 ± 5.14% (zone 3), 19 ± 4.31% (zone 4) y 1 ± 0.53% (zone 5). Our findings show that the highest HR reached during matches, is lower than HRmax registered during the YYIR1. Likewise, we can observe that internal match load, measured as a FC obtained during matches, is lower than the results of other studies during senior competitive-level matches.
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