Vrednovanje pouzdanosti mobilne aplikacije za procjenu vršne brzine lopte kod odraslih nogometaša amaterske razine

master's thesis

• Title (english): Evaluation of the reliability of a mobile application for estimating peak ball velocity in adult male soccer players
• Author: Perica Blažević
• Mentor: Ivan Radman (mentor)
• Committee member: Ivan Radman (predsjednik povjerenstva)
• Committee member: Vjekoslav Cigrovski (član povjerenstva)
• Committee member: Katarina Ohnjec (član povjerenstva)
• Granter: University of Zagreb; Faculty of Kinesiology; Zagreb
• Defense date and country: 2021-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: SOCIAL SCIENCES; Kinesiology

Abstract

U praksi nogometnih trenera postoji kontinuirana potreba za vrednovanjem kvalitete izvedbe nogometnih udaraca. Zbog podizanja učinkovitosti trenerskog rada teži se primjeni jednostavnijih i tehnološki naprednijih alata u svrhu testiranja. Bit ovog diplomskog rada bio je utvrditi pouzdanost i diskriminacijsku valjanost jednostavnog protokola za testiranje preciznosti, brzine i kvalitete izvođenja nogometnih udaraca aplikacijom MyKicks kod seniorskih nogometaša. U istraživanju je sudjelovao prigodni uzorak koji je sačinjavao 17 nogometaša koji se natječu u 2. nogometnoj ligi, prosječne dobi 22.2±2.9 godine, te 15 nogometaša koji se natječu u 5. nogometnoj ligi, prosječne dobi 24.4±6.8 godine. Pouzdanost je vrednovana usporedbom individualnih i grupnih rezultata dva uzastopna (prvog i ponovljenog) testa, a diskriminacijska valjanost se vrednovala usporedbom rezultata skupine nogometaša više i skupine nogometaša niže natjecateljske razine. Rezultati su pokazali da je predloženi protokol dovoljno pouzdan za testiranje brzine lopte kod nogometaša profesionalne razine, ali ne i amaterske razine. Uz to, test se sa srednjom razinom pouzdanosti može koristiti i za rangiranje nogometaša prema preciznosti i kvaliteti udaraca koji pogađaju gol. No, predloženi protokol, u primijenjenom formatu, nije dostatno valjan za vrednovanje autentične situacijske preciznosti i kvalitete udarca u nogometu. Buduće studije tek trebaju utvrditi mogu li drugi protokoli koji, koristeći MyKicks alat, primjereno kvantificiraju promašene pokušaje pouzdano i valjano vrjednovati vještinu udaraca kod nogometaša amaterske i profesionalne razine.

Abstract (english)

In football practice, there is a continuous need to evaluate the quality of the performance of football kicks. In order to increase quality of new coaching plans, it is important to apply simpler and more technologically advanced tools for testing purposes. The point of this hypothesis was to determine the reliability and discriminatory validity of a simple testing protocol for the accuracy, speed, and quality of football kicks with the MyKicks application in senior football players. A special sample of 17 football players competing in the 2nd football league, with an average age of 22.2 ± 2.9 years, and 15 football players competing in the 5th football league, with an average age of 24.4 ± 6.8 years, participated in the research. Reliability was evaluated by comparing the individual and group results of two consecutive (first and repeated) tests, and the discriminant validity was evaluated by comparing the results of a group of higher-level football players and a group of lower-level football players. The results showed that the proposed protocol was reliable enough to test ball speed in professional-level footballers, but not amateur-level ones. In addition, the test with a medium level of reliability can also be used to rank footballers according to the accuracy and quality of the shots that hit the goal. However, the proposed protocol, in the applied format, is not valid enough to evaluate the authentic situational accuracy and quality of the kick in football. Future studies have yet to determine whether other protocols that, using the MyKicks tool, can adequately quantify failed attempts and reliably and validly evaluate the skill of punches in amateur and professional football players.

• Keywords: Nogomet; šutiranje; test; valjanost; preciznost; MyKicks; udarci na gol
• Keywords (english): Football; kicking; test; validity; accuracy; MyKicks; goal shooting
• Language: croatian
• URN:NBN: urn:nbn:hr:117:210419
• Study programme: Title: Kinesiology; specializations in: Kinesiology in Education and Track-and-Field, Kinesiology in Education and Fitness, Kinesiology in Education and Wrestling, Kinesiology in Education and Sailing, Kinesiology in Education and Windsurfing, Kinesiology in Education and Judo, Kinesiology in Education and Kayaking, Kinesiology in Education and Kinesiological Recreation, Kinesiology in Education and Kinesitherapy, Kinesiology in Education and Physical Conditioning of Athletes, Kinesiology in Education and Basketball, Kinesiology in Education and Football, Kinesiology in Education and Volleyball, Kinesiology in Education and Basic Kinesiological Transformations, Kinesiology in Education and Dancing, Kinesiology in Education and Swimming, Kinesiology in Education and Rhythmic Gymnastics, Kinesiology in Education and Handball, Kinesiology in Education and Skiing, Kinesiology in Education and Artistic Gymnastics, Kinesiology in Education and Management of Sport, Kinesiology in Education and Tennis, Kinesiology in Education and Rowing; Course: Kinesiology in Education and Football; 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 authenticated users
• Created on: 2021-11-30 09:12:54