| Abstract | UVOD: Ovo istraživanje imalo je za cilj odrediti stanje performansi juniorskih vaterpolista korištenjem sport specifičnog poligona u vodi. METODE: Uzorak ispitanika uključivao je 9 vaterpolista (prosječne dobi 16,70±1,06 godina; tjelesne visine 186,11±6,42 cm; tjelesne mase 81,18±7,30 kg; postotka tjelesne masti 14,14±2,95). Varijable brzina leta lopte i sprint na 20 metara su mjerene odvojeno s velikim odmorom i u poligonu (prosječna sila tijekom 20 sekundi, brzina gađanja i sprint na 20 metara). Također, postotak za rangiranje sudionika izračunat je na način da se rezultat sudionika podijeli s maksimalnim rezultatom grupe. REZULTATI I DISKUSIJA: Rezultati su pokazali da postoji značajna razlika dobivena između brzine udarca u stanju mirovanja (71,40±5,17 km/h) i unutar poligona (65,50±6,11 km/h). Također, vidljiva je značajna razlika između sprinta na 20 metara (odmor 11,70±0,69 s; poligon 13,69±0,79 s). Nadalje, korelacijska analiza pokazala je da brzina gađanja u poligonu ima značajnu pozitivnu korelaciju s prosječnom snagom (0,76) i gađanjem u mirovanju (0,92). Također, postoji pozitivna korelacija između sprinta na 20 metara u mirovanju i u poligonu (0,64). Osim toga, postoji negativan odnos između sprinta na 20 metara u mirovanju i poligonu (-0,68), te između sprinta na 20 metara u mirovanju i gađanja u poligonu (-0,80). ZAKLJUČAK: Rezultati sugeriraju da poligon poput ovog može biti dobar prediktor sportske izvedbe, posebno za kompleksne sportove kao što je vaterpolo. Nadalje, razlike u rezultatima između varijabli u mirovanju i u poligonu pokazuju da je vaterpolo iscrpna sportska igra, a poligon može oponašati jedan kompleks obrane do napada u vaterpolo utakmici. |
| Abstract (english) | INTRODUCTION: This study aimed to determine the performance of junior water polo players by using a sport-specific polygon. METHODS: The sample of participants included 9 divers (average age 16.70±1.06 years; body height 186.11±6.42 cm; body mass 81.18±7.30 kg; body fat percentage 14.14±2.95). Used variables were measured in resting state and in polygon (average force during 20 sec, shooting velocity, and 20-meter sprint). Also, the percentage to rank the participants was calculated in the manner that the result from the participant was divided by the maximal result of the group. RESULTS and DISCUSSION: Results showed that there is a significant difference obtained between shoot velocity in the resting state (71.40±5.17 km/h) and polygon (65.50±6.11 km/h). Also, a significant difference is seen between the 20-meter sprint (rest, 11.70±0.69 sec; polygon, 13.69±0.79 sec). Furthermore, correlation analysis showed that shooting velocity in a polygon has a significant positive correlation with average force (0.76) and shoot in rest (0.92). Also, there is a positive correlation between the 20-meter sprint in rest and in polygon (0.64). Apart, from that there is a negative relation between a 20-meter sprint in rest and in a polygon (-0.68), and between a 20-meter sprint in rest and shoot in the polygon (-0.80). CONCLUSIONS: The results imply that a polygon like this one can be a good predictor of sport-specific performance, especially for complex sports such as water polo. Furthermore, the differences between variables in rest and in polygon indicate that it is exhaustive and can mimic one complex of defense to offense in water polo match. |
