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Straight-Line and Change-of-Direction Intermittent Running in Professional Soccer Players.

Published on Apr 19, 2017in International Journal of Sports Physiology and Performance3.979
· DOI :10.1123/IJSPP.2016-0318
Mohamed Saifeddin Fessi5
Estimated H-index: 5
,
Fayçal Farhat2
Estimated H-index: 2
+ 2 AuthorsWassim Moalla12
Estimated H-index: 12
Sources
Abstract
Purpose:The present study aimed to investigate the difference between straight-line (STL) and change of direction (COD) intermittent running exercises in soccer players. Methods:Seventeen male professional soccer players performed the agility T-test and 6 intermittent running exercises: 10s at 130% of maximal aerobic speed (MAS) alternated with 10s of rest (10-10), 15s at 120% of MAS alternated with 15s of rest (15-15) and 30s at 110% of MAS alternated with 30s of rest (30-30) both in STL and with COD. All exercises were monitored using a global positioning system. Heart rate was measured during exercises and the rate of perceived exertion (RPE) was collected post-exercise. Delta (Δ) between covered distance in STL and COD exercises at a similar load was calculated and relationships between T-test and Δ distance were analysed. Results:COD intermittent exercises showed a significantly decreased distance covered and an increased number of accelerations, heart rate peak and RPE value compared to STL intermit...
  • References (25)
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#1Karim Hader (University of Picardie Jules Verne)H-Index: 1
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The aim of the present study was to examine the validity and reliability of metabolic power (P) estimated from locomotor demands during soccer-specific drills. 14 highly-trained soccer players performed a soccer-specific circuit with the ball (3×1-min bouts, interspersed with 30-s passive recovery) on 2 different occasions. Locomotor activity was monitored with 4-Hz GPSs, while oxygen update (VO2) was collected with a portable gas analyzer. P was calculated using either net VO2 responses and tra...
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