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Examination of fatigue development in elite soccer in a hot environment: a multi-experimental approach.
- Source :
-
Scandinavian Journal of Medicine & Science in Sports . Oct2010 Supplement 3, Vol. 20, p125-132. 8p. - Publication Year :
- 2010
-
Abstract
- The study examines fatigue in elite soccer played in hot conditions. High-profile soccer players ( n=20) were studied during match play at ∼31 °C. Repeated sprint and jump performances were assessed in rested state and after a game and activity profile was examined. Additionally, heart rate (HR), blood lactate, muscle temperature and body mass changes were determined. Repeated sprint and jump performances were reduced ( P<0.05) by 2.6% and 8.2%, respectively, after the game. The fatigue index in the repeated sprint test was 6.0±0.7% after the game compared with 1.7±1.0% at rest ( P<0.05). High-intensity running was 57±4% lower ( P<0.05) during the last 15-min interval of the game compared with the first 15-min period. No differences were observed in mean HR or blood lactates between halves. Muscle temperature was 40.5±0.4 °C after the first half, which was 0.8±0.2 °C higher ( P<0.05) than after the second half. Net fluid loss during the game was >2% of the body mass. Correlations were observed between net-fluid loss and repeated sprint test fatigue index after the game ( r=0.73, P<0.05) and Yo-Yo intermittent recovery, level 1 test performance and high-intensity running during the final 15 min of the game ( r=0.51, P<0.05). The study provides direct evidence of compromised repeated sprint and jump performances induced by soccer match play and pronounced reduction in high-intensity running toward the end of an elite game played in a hot environment. This fatigue could be associated training status and hyperthermia/dehydration. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ANALYSIS of variance
*ATHLETES
*STATISTICAL correlation
*DEHYDRATION
*FATIGUE (Physiology)
*HEART beat
*HEAT
*MUSCLES
*STATISTICAL sampling
*SOCCER
*STATISTICS
*T-test (Statistics)
*TEMPERATURE
*WEATHER
*DATA analysis
*PHYSICAL training & conditioning
*RANDOMIZED controlled trials
*REPEATED measures design
Subjects
Details
- Language :
- English
- ISSN :
- 09057188
- Volume :
- 20
- Database :
- Academic Search Index
- Journal :
- Scandinavian Journal of Medicine & Science in Sports
- Publication Type :
- Academic Journal
- Accession number :
- 64719571
- Full Text :
- https://doi.org/10.1111/j.1600-0838.2010.01217.x