Differences in throwing velocity of young male handball players chronological age 10 and 11 years

Primarni cilj ovog istraživanja bio je izmjeriti brzine izbačaja lopte kod različitih načina šutiranja za dječake rukometaše dobi 10-11 godina, zatim usporediti rezultate prema različitim načinima šutiranja kao i utvrditi razlike u brzini izbačaja lopte između dječaka različite dobi iste rukometne generacije. Mjerenje je provedeno na uzorku od 68 dječaka iz rukometnih klubova: Zg Dubrava, Sesvete, Zaprešić i Maksimir Pastela u dobi 10 i 11 godina, prosječne tjelesne mase 45.63 kg i tjelesne visine 153.23 cm Uzorak varijabli sastojao se od 6 varijabli: dob, visina tijela, masa tijela, brzina lopte kod osnovnog šuta s mjesta, brzina lopte kod osnovnog udarca iz tri koraka iz uporišta, brzina lopte kod skok šuta. Za sve su varijable izračunati osnovni deskriptivni parametri, a razlike prema navedenim varijablama između dječaka 10-11 godina utvrđene su primjenom t-testa za nezavisne uzorke. Rezultati ovog istraživanja pokazali su postoji da statistički značajna razlika u brzini izbačaja kod dječaka mladih rukometaša kronološke dobi 10 i 11 godina. Utjecaj relative age effecta, promatran kroz varijable brzine izbačaja lopte potvrđen je i za ovu skupinu ispitanika.The primary purpose of this research was to measure the throwing velocity in different ways of shooting for boy handball players aged 10-11 years, then compare the results according to different shutting modes as well as determine the difference in throwing velocity between boys of different age of the same handball generation. The measurement was performed on a sample of 68 boys from handball clubs: Zg Dubrava, Sesvete, Zaprešić and Maksimir Pastel at age 10 and 11, average body mass of 45.63 kg and body height of 153.23 cm. The sample of variables consisted of 6 variables: age, body height, body mass, speed measurement in basic shot from standing position, speed measurement in basic shot from the ground using three step run, speed measurement in basic jump shot. For all variables, the base descriptive parameters were calculated, and differences according to the mentioned variables between boys 10-11 years were determined using t-test for independent samples. The results of this study showed that there was a statistically significant difference in the throwing velocity from boys of young handball players chronologically aged 10 and 11 years. The influence of relative age effect, observed through the speed of the ball in different ways of shooting, was also confirmed for this group of subjects