Analiza učinkovitosti igranja v napadu ob menjavi vratarja z igralcem v polju na rokometnem SP 2021

Pirc, Luka (author), Šibila, Marko (mentor)

Namen magistrske naloge je bil opraviti analizo učinkovitosti igranja v napadu ob menjavi vratarja z igralcem v polju na rokometnem Svetovnem prvenstvu 2021 v Egiptu. Na prvenstvu je sodelovalo 32 ekip. Cilj je bil zbrati uradne podatke s tekem najboljših 24 ekip in jih statistično obdelati. Želeli smo ugotoviti kakšne so razlike v številu pojavljanj nekaterih spremenljivk igralne učinkovitosti ob menjavi vratarja z igralcem v polju v številčnem razmerju igralcev 6:6 in 7:6 brez vratarja pri zmagovalcih in poražencih, ter primerjali igro v napadu 6:6 brez vratarja z igro v napadu 7:6 brez vratarja. Podatke, ki smo jih uporabili pri analizi, smo pridobili s pomočjo statističnih podatkov iz posameznih tekem, objavljenih na spletni strani Mednarodne rokometne zveze (IHF). V raziskavo smo zajeli 6 spremenljivk (število napadov, število strelov, število zadetkov, število zgrešenih strelov, število tehničnih napak in število prejetih zadetkov), ki smo jih analizirali v treh različnih situacijah (igra v napadu 6:6 brez vratarja, igra v napadu 7:6 brez vratarja, primerjava igre v napadu 6:6 brez vratarja in igre v napadu 7:6 brez vratarja). Nato smo določili 18 ničelnih hipotez in podatke obdelali s pomočjo statističnega programskega paketa SPSS. Opisnim spremenljivkam smo izračunali frekvenčno porazdelitev, številskim pa povprečja in standardne odklone. Številskim spremenljivkam smo ločeno glede na tip igre (igra v napadu 6:6 brez vratarja ali igra v napadu 7:6 brez vratarja) preverili normalnost porazdelitve (Shapiro-Wilkov test) in homogenost varianc (Levenov test) zmagovalnih in poraženih ekip. Razlike med zmagovalci in poraženci v uspešnosti igre v napadu 6:6 ali 7:6 brez vratarja smo preverili s t-testom za neodvisne vzorce ali z Mann Witneyevim testom, v primeru kršenih predpostavk. Razlike med igro v napadu 6:6 in 7:6 brez vratarja v igralni uspešnosti smo preverili s t-testom za odvisne vzorce ali z Wilcoxonovim rang testom, v primeru kršenih predpostavk. Rezultati so pokazali, da obstajajo pri igri v napadu 6:6 brez vratarja statistično značilne razlike samo v številu zgrešenih strelov med zmagovalci in poraženci. Zmagovalci v igri v napadu 6:6 statistično značilno zgrešijo manj strelov. Pri igri v napadu 7:6 brez vratarja prihaja, do statistično značilnih razlik v številu napadov, številu zgrešenih strelov, številu tehničnih napak in številu prejetih zadetkov med zmagovalci in poraženci. Poraženci statistično značilno zgrešijo več strelov, naredijo več tehničnih napak in prejmejo več zadetkov v igri v napadu 7:6. Primerjava igre v napadu 6:6 brez vratarja in igre v napadu 7:6 brez vratarja je pokazala statistično značilne razlike pri vseh spremenljivkah, višje vrednosti so se pojavljale pri igri v napadu 6:6 brez vratarja.

• Language: Slovenian
• Keywords: moško SP v rokometu Egipt 2021, igralna učinkovitost, igra brez vratarja, analiza, rokometna pravila
• Work type: Master's thesis/paper
• Organization: FŠ - Faculty of Sport
• Year: 2024
• PID: 20.500.12556/RUL-155404
• Publication date in RUL: 30.03.2024

Secondary language

• Language: English
• Title: Analysis of the effectiveness of playing in the attack when changing the goalkeeper with a player in the field at WC 2021

Abstract

The purpose of the master's thesis was to conduct an analysis of the effectiveness of attacking strategies during goalkeeper substitutions with a field player in the 2021 Handball World Championship. The goal was to collect official data from matches involving the top 24 teams and statistically analyse them. The objective was to explore differences in the occurrence of selected gaming performance variables during goalkeeper substitutions with a field player in attack phase situations 6:6 and 7:6 without a goalkeeper, comparing winners and losers. Additionally, a comparison was made between the game scenarios of 6:6 without a goalkeeper and 7:6 without a goalkeeper in attack phase situations. Data used in the analysis were obtained through statistical information from individual handball matches available on the IHF website. The study encompassed six variables (number of attacks, number of shots, number of goals, number of missed shots, number of technical errors, and number of goals conceded), which were analysed in three different situations (attacking 6:6 without a goalkeeper, play in offense 7:6 without a goalkeeper, and a comparison between play in offense in 6:6 and 7:6 without a goalkeeper). Subsequently, 18 null hypotheses were formulated, and the data were processed using the statistical software package SPSS. For descriptive variables, the frequency distribution was calculated, while numerical variables had their means and standard deviations computed. Numerical variables were separately assessed based on the type of game (6:6 without a goalkeeper or 7:6 without a goalkeeper) to check for normal distribution (Shapiro-Wilk test) and homogeneity of variances (Levene's test) among winning and losing teams. Differences in the performance of winning and losing teams during play in offense 6:6 or 7:6 without a goalkeeper were examined using independent samples t-test or Mann-Whitney test in case of violated assumptions. Furthermore, differences in performance between play in offense 6:6 and 7:6 without a goalkeeper were assessed using dependent samples t-test or Wilcoxon signed-rank test in case of violated assumptions. The results indicated statistically significant differences only in the number of missed shots during the play in offense 6:6 without a goalkeeper scenario. Winners in play in offense 6:6 statistically typically miss fewer shots. In the play on offense 7:6 without a goalkeeper scenario, significant differences were observed in the number of attacks, number of missed shots, number of technical errors, and number of goals conceded. Losers in play in offense 7:6 statistically typically miss more shots, commit more technical fouls and concede more goals. The comparison between play in offense 6:6 without a goalkeeper and 7:6 without a goalkeeper revealed statistically significant differences across all variables, higher values occurred when play in offense 6:6 without a goalkeeper.

• Keywords: men's WC in handball Egypt 2021, game efficiency, attacking without a goalkeeper, analysis, handball rules