Assessment of physical performance using GPS during competitive matches in youth elite soccer players
Abstract
Data di Pubblicazione:
2015
Citazione:
Assessment of physical performance using GPS during competitive matches in youth elite soccer players / M. Fiorenza, F.M. Iaia, G. Alberti, M. Fanchini - In: 8th World Congress on Science and Football, Copenhagen, Denmark, 20-23 May, 2015 : Program and Abstracts / [a cura di] J. Bangsbo, P. Krustrup. - Copenhagen : SL Grafik, 2015 May. - ISBN 9788791771590. - pp. 214-214 (( Intervento presentato al 8. convegno World Congress on Science and Football tenutosi a Copenhagen nel 2015.
Abstract:
The aim of this study was to measure physical performance during official soccer competitions using Global Positioning System (GPS) technology. Sixteen youth professional soccer players (age 18±0.2 years, weight 70±7 kg, height 179±6 cm) from an Italian SerieA club were monitored over seven official matches with GPS (SPI-Pro X, GPSports). The high and very-high speed running distances (HSR, 14.4-19.7 and VHSR, >19.8 km/h, respectively) as well as the high metabolic
power distance (HPR, >20 W/kg) and the mean metabolic power (Pmet) were considered as indicators of physical performance. No time x position interactions were found (all P>0.05). A significant decrease in HSR, HPR and Pmet occurred through the game (all P<0.001). HSR was 33% lower in the last than in the first 15 min of the game (21.4 vs. 32.2 m/min, P=0.006), whereas HPR and Pmet were lower in the last four compared with the first two 15-min periods (all P<0.05).
Full-backs performed significantly higher VHSR (9.4 vs. 5.3 m/min, P=0.03) and Pmet (14.5 vs. 12.1 W/kg, P=0.046) and tended to have higher HPR (29.8 vs 21.1 m/min, P=0.054) compared with central defenders. No significant differences were observed between the other playing positions.
This is the first study to assess physical performance during official soccer match-play using GPS technology. The results show that high speed and power distances decreased throughout the game and were higher in full-backs compared with central defenders. Thus, GPS and its-related metabolic power measurements can be used as an additional tool to evaluate match physical performance.
Tipologia IRIS:
03 - Contributo in volume
Elenco autori:
M. Fiorenza, F.M. Iaia, G. Alberti, M. Fanchini
Link alla scheda completa:
Titolo del libro:
8th World Congress on Science and Football, Copenhagen, Denmark, 20-23 May, 2015 : Program and Abstracts