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The impact of speed during isocinetic contraction for strength ratios of m. quadriceps to hamstrings in youth soccer players U15-19
Trýzna, Jakub ; Šťastný, Petr (advisor) ; Kokštejn, Jakub (referee)
Title: The impact of speed during isocinetic contraction for strength ratios of m. quadriceps to hamstrings in youth soccer players U15-19 Objectives: The objectives of this bachelor thesis is to find out a relative strength ratios of m. quadriceps to hamtrings of both lowr limbs by means of isocinetic dynamometry using a Cybex device. Methotds: Isocinetic dynamometry was used for an assignmnent of strength abilities using a Cybex device. Agility tests were used for an assignment of speed. Results: H/Q strength ratios were icreased with icreasing angular speed. Muscular strength itself decreased by increasing speed of muscular contraction both in flexion and extensit. Keywords: Peak torque, izocinetic dynamometry, soccer, training
The impact of speed during isocinetic contraction for strength ratios of m. quadriceps to hamstrings in youth soccer players U15-19
Trýzna, Jakub ; Šťastný, Petr (advisor) ; Kokštejn, Jakub (referee)
Title: The impact of speed during isocinetic contraction for strength ratios of m. quadriceps to hamstrings in youth soccer players U15-19 Objectives: The objectives of this bachelor thesis is to find out a relative strength ratios of m. quadriceps to hamtrings of both lowr limbs by means of isocinetic dynamometry using a Cybex device. Methotds: Isocinetic dynamometry was used for an assignmnent of strength abilities using a Cybex device. Agility tests were used for an assignment of speed. Results: H/Q strength ratios were icreased with icreasing angular speed. Muscular strength itself decreased by increasing speed of muscular contraction both in flexion and extensit. Keywords: Peak torque, izocinetic dynamometry, soccer, training

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2 Tryzna, Jan
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