Activity profile and physical demands of football referees and assistant referees in international games
Deutscher übersetzter Titel: | Aktivitätsprofil und körperliche Anforderungen an Fußballschiedsrichter und Schiedsrichterassistenten bei internationalen Spielen |
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Autor: | Krustrup, Peter; Helsen, Werner; Randers, Morten B.; Christensen, Jesper F.; MacDonald, Christopher; Rebelo, António Natal; Bangsbo, Jens |
Erschienen in: | Journal of sports sciences |
Veröffentlicht: | 27 (2009), 11, S. 1167-1176, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0264-0414, 1466-447X |
DOI: | 10.1080/02640410903220310 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201409008604 |
Quelle: | BISp |
Abstract
Time-motion analyses and physiological measurements were performed to investigate the physiological demands of football referees (n = 15) and assistant referees (n = 15) in international games and to examine whether high-intensity running (HIR) correlates to the referees' ability to keep up with play. Total distance covered (10.27 ± 0.90 vs. 6.76 ± 0.83 km) and HIR (1.92 ± 0.58 vs. 0.97 ± 0.22 km) was higher (P < 0.05) for referees than assistant referees, while sprinting distance was not different. Referees covered 0.89 ± 0.37 km by backwards running and assistant referees covered 1.54 ± 0.66 km by sideways running. Mean heart rate was higher (P < 0.05) for referees than assistant referees (150 ± 3 vs. 123 ± 3 b.p.m.), whereas blood lactate was not different. Backwards/sideways running decreased (P < 0.05) from the first to the last 15-min period for referees (49%) and assistant referees (42%), whereas HIR was unaltered. HIR was inversely correlated with the five highest distances from infringements in both halves (r = −0.60 and −0.58, P < 0.05). In conclusion, international match officials carry out an important amount of HIR throughout games, while low-intensity and unorthodox running activities are reduced during games. Referees performing the most high-intensity work are better to keep up with play. The match activities differ significantly between referees and assistant referees, which should be considered in training and testing procedures. Verf.-Referat