Razlike u pravovremenosti izvedbe split-stepa između bolje i slabije rangiranih profesionalnih ATP igrača

master's thesis

• Title (english): Differences in split-step performance between high and low ranked ATP players
• Author: Lovro Vranić
• Mentor: Petar Barbaros Tudor (mentor)
• Mentor: Dario Novak (komentor)
• Committee member: Petar Barbaros Tudor (predsjednik povjerenstva)
• Committee member: Lidija Petrinović (član povjerenstva)
• Committee member: Boris Neljak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Kinesiology; (Department of Kinesiology of Sport); Zagreb
• Defense date and country: 2018-03-29, Croatia
• Scientific / art field, discipline and subdiscipline: SOCIAL SCIENCES; Kinesiology

Abstract

U ovom radu utvrđene su razlike u pravovremenosti izvedbe split- stepa između dvije skupine profesionalnih igrača na ATP ljestvici (N = 20, dob = 28 +/- 9; tjelesna masa = 78 +/- 12 kg; tjelesna visina = 188 +/-12 cm). Igrači su bili podijeljeni u skupinu bolje rangiranih (od 1. do 10. mjesta na ATP ljestvici) te u skupinu niže rangiranih (od 100. do 110. mjesta na ATP ljestvici). Analiziranjem praćenih varijabli prikazano je odstupanje od pravovremene izvedbe split-stepa nakon izvedenog servisa, reterna te izmjene udaraca. Analizirao se split-step u trenutku protivničkog udarca te su se utvrđivala odstupanja od idealne izvedbe. Na temelju rezultata istraživanja možemo zaključiti da postoji statistički značajna razlika između prve i druge skupine u pravodobnosti izvedbe split-stepa kod servisa, (p < 0,01 ), reterna (p < 0,00) te kod izmjena (p < 0,01). Split-step je važan tehničko-taktički element te pravovremenost i kvaliteta njegove izvedbe može razlikovati bolje rangirane od niže rangiranih profesionalnih igrača. Upravo zbog toga je bitno da se za učenje i usavršavanje split-stepa kreće od najranije dobi poduke tenisa kod djece.

Abstract (english)

The purpose of this graduate thesis was to determine whether there is significant differences in reaction time and split-step movement jump between two groups of analysed professional ATP players (n = 20; age = 28 +/- 9; body mass = 78 +/- 12 kg; and body height = 188 +/- 12 cm). The players were separated in two groups. First group (from 1. to 10. player on ATP list) and second group (from 100. to 110. player on ATP list). The goal was to determine deviations from reaction time and split-step jump between first and the second group in three variables that were analysed. First was the split-step after the service in retern of the serve and between groundstrokes. Contact of the ball with opponent's racket was observed, and in that point the split-step of player's was analysed. If the player was not in ideal split-step position the deviations were determined. Research showed, that there is a statistically significant difference between arithmetic means between two groups in variables – serve, with certain error (p < 0,01). With variable retern results shown statistically significant difference between arithmetic means with certain error (p < 0,00), as well with variable for groundstrokes with certain error (p < 0,01). It shows that split-step is crucial technical and tactical element and quality of split-step execution can show differences between higher and lower ranked professional ATP players. Because of that it is important that split-step must be taught from early stages of tennis development in children.

• Keywords: split-step; pravovremenost; tenis; ATP igrači
• Keywords (english): Split-step; reaction time; tennis; ATP profesionall players
• Language: croatian
• URN:NBN: urn:nbn:hr:117:745012
• Study programme: Title: Integrated undergraduate and graduate university study of kinesiology; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: magistar / magistra kineziologije (magistar / magistra kineziologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2018-03-29 11:53:40