SportLogia
Vol. 9, Issue 1, Jun 2013.
STRUKTURA RAZLIČITIH INDIKATORA IZOMETRIJSKE EKSPLOZIVNE SILE OPRUŽAČA NOGU KOD VRHUNSKIH SPORTISTA
Jelena Ivanović1 i Milivoj Dopsaj2
1Zavod za sport i medicinu sporta Republike Srbije, Beograd, Srbija
2Fakultet sporta i fizičkog vaspitanja, Univerzitet Beograd, Srbija
ORGINALNI NAUČNI ČLANAK
doi: 10.5550/sgia.130901.se.003I
UDK: 796.015.26:796.012.1
Sažetak PUNI TEKST(.pdf)
Cilj ovog rada bio je utvrditi faktorsku strukturu posmatranih karakteristike tj. indikatora krive sila-vrijeme za procjenu eksplozivnosti opružača nogu u odnosu na različite grupe sportova. U istraživanju je učestvovalo 378 ispitanika raspoređenih u 8 grupa prema polu i specifičnosti trenažnog procesa kojem su bili izloženi. Za procjenu kontraktilnih karakteristika opružača nogu korišćena je standardizovana oprema i standardizovan test u sjedećoj poziciji. Mjerni opseg definisan je na osnovu 15 varijabli koje se odnose na kontraktilne karakteristike izometrijske eksplozivne sile ekstenzora nogu mjerene u unilateralnom (dominanta i nedominanta noga) i bilateralnom režimu mišićne kontrakcije mjerenih na 100 i 50% od maksimalne sile i na 100, 180 i 250 ms od početka mišićne kontrakcije. Rezultati dobijeni u ovom istraživanju pokazuju da mjerene karakteristike eksplozivne sile opružača nogu dobijene u bi i unilateralnom režimu naprezanja u odnosu na različite grupe sportova imaju različitu strukturu u funkciji izdvojenog sklopa faktora pod uticajem drugačijih mehanizama u odnosu na trenažne procese u različitim sportskim disciplinama.
Ključne riječi: faktorska struktura, različito trenirani sportisti, kriva sila-vrijeme.
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