THE RESEARCH OF CONSECUTIVE SPRINT, JUMP AND LEG STRENGTH RELATIONSHIPS IN U15 FOOTBALL PLAYERS

Abstract

Author(s): Osman ?MAMO?LU, Mehmet EB?, Muhammed YILDIZ

It is the research of the relationships of 10 repeated 20m sprint run and vertical jump, standing jump and leg strength, and assessment of fatigue time in iterative run in U15 football players. 21 male football player playing in U15 division of Samsun Province were taken a s test subject. The 10 repeated 20m sprints with 15 second active resting has been taken with photocell. The force has been measured manuel muscle tool1. T-Test, single direction variance analysis and Sheffe test in statistical processes. Football players in adolescence are found to have %10,88 body fat index and 94,69 kg-m/sn anaerobic power and 27,16 cm flexibility. Vertical jump is 51,31 cm, standing forward jump double leg 196,2 cm, right leg forward jump is 173,12 cm, left leg forward jump is 172,12 cm and knee extension strenght is right 37,42 left 34,03 knee flexion strenght is right 22,56 kg left 200,00 kg, hip extension strenght is right 30,62 left 28,69 hip flexion strenght is right 36,97 kg left 34, 19. Run time, the average of 1st and 2nd sprint (the best run average) is 3,61 second, the average of 9th and 10th sprint (the best last average) is 4,24 sn. There is a statistically meaningful difference between the two average (p<.01). Result: 15 second active resting and the training after the 4th sprint the consecutive in 10 repeated 20m sprint can boost speed and endurance in speed in U15 footballers. To improve anaerobik endurance in the category of U15, they must have 4-10 repeated 20m sprints with 15 seconds active resting time. In the footballers in adolescence the muscles which make flexion and extension to hips and knees must be improved.

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