Decembar/December, 2020 93 https://doi.org/10.7251/SSH2002093DJ UDC: 796.386.015.1:796.015.26 Original scientifc paper Originalni naučni rad 1 Pokrajinski zavod za sport i medicinu sporta, Novi Sad, Srbija 2 Sveučilište u Mostaru-Fakultet prirodoslovno-matematičkih i odgojnih znanosti, studij Kineziologije, Bosna i Hercegovina Korespondencija: Branko ukić Pokrajinski zavod za sport i medicinu sporta Novi Sad, Srbija branko.djukic@pzsport.rs Sažetak: Cilj rada je bio da se utvrde karakteristike i efkasnost servisa kod najboljih mladih stonoteniserki, kao i postojanje razlika u servisu između mladih igra- čica različitog uzrasta. Uzorak istraživanja je činilo 18 mečeva (10 juniorke, 8 kadetkinje) na međunarodnim turnirima u 2018. godini (ETTU Youth Top 10 u Portuga- lu, Evropsko prvenstvo za mlade u Rumuniji). Rezultati analize Hi-kvadrat testa su pokazali postojanje statistički značajne razlike u broju izvedenih Forhend (FH) i Bek- hend (BH) kratkih servisa kod stonoteniserki. Za 4,3% je zabeleženo više BH kratkih servisa kod juniorki, dok su kadetkinje značajno više koristile FH kratke servise (3,5%) u odnosu na starije saigračice. Istraživanjem je dokazano i postojanje statistički značajne razlike u po- jedinim indikatorima efkasnosti servisa. Za 6,9% Servis bez prednosti je veća od kadetkinja, a Servis sa stečenom prednosti je 5,9% više zabeležena kod juniorki. Razlika postoji i u ostalim indikatorima efkasnosti servisa, ali nije statistički značajna. Od ukupno 1450 servisa, samo 1% servisa je pogrešno izvedeno. Ključne reči: stoni tenis, početni udarac, razlike, ka- detkinje, juniorke. Uvod Stoni tenis spada u tehnički i taktički najsloženije sportove. Pretpostavka za dobijanje poena je uspešna pri- mena što većeg broja različitih udaraca. Svaki od njih ima svoj način izvođenja, svoju ulogu u poenu, te u od- nosu na kvalitet i kvantitet njihove primene determiniše se takmičarsko postignuće, odnosno stil i koncept igre igrača. 1 Provincial Institute for Sports and Sports Medicine, Novi Sad, Serbia 2 University of Mostar-Faculty of Natural Sciences, Mathematics and Education, Study of Kinesiology, Bosnia and Herzegovina Correspondence: Branko ukić Provincial Institute for sport and sports medicine, Novi Sad, Serbia branko.djukic@pzsport.rs Abstract: The aim of this study was to determine the characteristics and efciency of service in the best young table tennis players, as well as the existence of difer- ences in service between young players of diferent ages. The research sample consisted of 18 matches (10 juniors, 8 cadets) at international tournaments in 2018 (ETTU Youth Top 10 in Portugal, European Youth Championship in Romania). The results of the analysis of the Hi-square independence test showed the existence of a statistically signifcant diference in the number of performed Forhand (FH) and Backhand (BH) short services in table tennis players. By 4.3%, more BH short services were recorded among juniors, while cadets signifcantly more used FH short services (3.5%) compared to older teammates. The research also proved the existence of a statistically signif- cant diference in certain indicators of service efciency. By 6.9%, Service without advantage is signifcantly higher among female cadets, and Service with acquired advan- tage is 5.9% higher among juniors. There is a diference in other indicators of service efciency, but it is not statisti- cally signifcant. Out of a total of 1450 services, only 1% of services were performed incorrectly. Keywords: table tennis, kick-of, diferences, cadets, juniors. Introduction Table tennis is one of the most technically and tacti- cally complex sports. The precondition for gaining points is the successful application of as many diferent blows as pos- sible. Each of them has its own way of performing, its own role in the point, and in relation to the quality and quantity of their application, the competitive achievement is deter- mined, ie the style and concept of the player’s game. Branko Đukić 1 , Vladimir Ivanek 2 Characteristics and Efficiency of Service in Young Table Tennis Players Karakteristike i efikasnost servisa kod mladih stonoteniserki