Between match variation in professional rugby league competition
- Sports Medicine Australia
- Publication Type:
- Journal Article
- Journal Of Science And Medicine In Sport, 2014, 17 (4), pp. 404 - 407
- Issue Date:
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|Kempton et al (2014) Between match variation in professional rugby league JSAMS.pdf||Published Version||345.42 kB|
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Objectives To assess between match variability of physical performance measures over both the total and sub sections of the match in professional rugby league competition. Design Longitudinal observational study. Methods Global positioning system (GPS) data were collected from 24 players from the same team competing in the National Rugby League (NRL) competition over 23 matches during 2011 season. The GPS data were categorised into total distance, high-speed running (>15 km h-1) and very high-speed running (>21 km h-1) distance for discrete reference periods (10 min, 20 min, 40 min and 80 min). The data was then log transformed to provide the coefficient of variation (CV) and the between subject standard deviation (both expressed as percentages). Results The data show that the between match variability is greater for high-speed (CV 14.6%) and very-high speed (CV 37.0%) running compared to total distance (CV 3.6%). Within each speed category, the variability of performance tended to increase as the duration of the reference period decreased.
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