Ivan Belcic

University of Zagreb

The purpose of study was to resolve the effect of plyometric training and repeated sprint training on physical performance. The study was conducted on 41 subjects in two experimental groups (plyometric/repeated sprints training). Before and after the training program, subjects were subjected to diagnostic procedures that included standard test prot...

Background:‪ Several factors contributed to the evolution of handball, and one of the most important changes for faster, more dynamic and aggressive game is the change of rules which increase physical demands of players and especially referees. The aim of this study is to determine whether functional abilities have an influence on the quality of re...

Metabolic syndrome is a group of metabolic risk factors whose combination significantly contributes to the development of the risk of cardiovascular disease, diabetes, stroke, some cancers and is a clear indicator of morbidity rate. The aim of this study was to identify physical activity programs that can successfully influence the reduction of ris...

The aim of this study was to determine whether the dynamic motor stereotype of movement (shooting technique) is violated under conditions of an increased lactate concentration in a player's blood after a 30-15 intermittent fitness test. The hypotheses was that there would be statistically significant differences in ball speed and shooting accuracy...

The purpose of the study was to determine the correlation of quality of the refereeing in handball with the morphological characteristics of referees, along with their age and experience. Subjects are 16 pairs (N=32) of top-level handball referees in Croatia (age 34.66±6.44, height 184.02±5.87 cm, body mass 91.14±10.61 kg, body fat 19,20±3,94% and...

Background. Injuries in football are often, and they cause many problems for clubs and players, for this reason, it is of utmost need to try to restrict them to the lowest possible level. Objectives. The main objective of this study is to confirm whether clubs that regularly implement prevention programmes will have a significantly lower incidence...

Background. One of the most effective methods for progression in fast and explosive movements which are important in football player's performance is plyometric training which includes activities and movements whose performance depends on the stretch and shortening cycle. Objectives. The problem of this research is related to the monitoring of the...

The main aim of this paper is manifested in the hypothesis that there is a statistically significant correlation between the length of an active wrestling career and selected attitudes and behaviours caused by the COVID-19 virus pandemic. The sample of respondents (N=131) consists of international wrestlers (average age 22.32±5.08 years) from all c...

The aim of this research is to determine whether a larger number of injuries in the team affects the final competitive achievement of clubs in the 1st Croatian Football League. Data on injuries in training and matches were collected using UEFA's Injury Study Questionnaire. 340 players (in all 10 clubs) participated in the research. The Chi-square t...

Citation: Belcic, I.; Ocic, M.; Dukaric, V.; Knjaz, D.; Zoretic, D. Effects of One-Step and Three-Step Run-Up on Kinematic Parameters and the Efficiency of Jump Shot in Handball. Appl. Sci. 2023, 13, 3811. https:// Abstract: The main aim of this research is to analyse the kinematic model of two different variations of executing the jump shot, one p...

Background. Referees are integral part of every handball match which is considered as high-intensity activity and they need to follow the action as close as possible to avoid mistakes in their decisions. The aims of this research were to determine physiological loads of referees during handball matches and whether higher physiological load during m...

The aim was to determine whether there was any difference in conditioning level between young and experienced handball referees which officiate at the highest rank of national competition. The total sample of subject consisted of all 16 pairs of referees (32 total) representing the highest rank in national competition. They were divided to referees...

The purpose of this study was to determine differences between vital capacity and length of a dive in dynamics (DYN) with and without glossopharyngeal insufflation in breath-hold divers. The sample consisted of 15 elite breath-hold divers (12 male subjects and 3 female subjects) who were in regular training process and members of national team in C...

The aim of this study was to determine correlation of motor abilities and quality of refereeing in Croatian national and international handball referees. Examinees were 32 handball referees from Premier Croatian Handball League. They are divided in pairs in which they are refereeing a match during their career. The list of Premier league handball r...

The aim of this study was to determine differences in physiological loads and energy consumption of handball referees between halves during handball match. The sample consisted of all 16 referee pairs which counts 32 handball referees who are on list of Croatian Premier handball league (highest handball rank in Croatia). Before the start of testing...

The Proceedings Book is consisted of 134 abstracts and full papers written by more than 420 authors from 36 countries. Topics of the World Congress of Performance Analysis of Sport XII are: sports performance, analysis of referees, coaching process, coach behaviour, biomechanics, analysis of technique, technical eff ectiveness, tactical evaluation,...

The aim of this study was to determine physiological loads in handball referees during the game, explore the impact of motor and functional abilities and morphological characteristics on quality of refereeing, and also to determine whether there is a relationship between physiological loads during the game and quality of the refereeing. The sample...

The purpose of this study was to determine differences between the parameters of situational efficiency in selected games according to the level of competition in the Croatian handball leagues. The sample consisted of 4 handball matches with 8 teams in selected league matches who play 3rd Croatian national handball league north, 2nd Croatian nation...

The purpose of this study was to determine differences between the parameters of situational efficiency in selected games according to the level of competition in the Croatian handball leagues. The sample consisted of 4 handball matches with 8 teams in selected league matches who play 3rd Croatian national handball league north, 2nd Croatian nation...

The aim of this paper is to determine the differences between the dominant and nondominant side of the body in indicators of motor performance by unilateral and bilateral athletes. 17 subjects were examined (members of the university handball team of the Faculty of Kinesiology) which represented unilateral athletes (in further text-UA) and 14 subje...

Cilj rada je utvrditi unilateralna opterećenja u rukometu, odnosno razlike između dominantne i nedominantne strane tijela rukometaša kod izvođenja određenih zadataka. Istraživano je 17 ispitanika (aktivni i povremeni članovi sveučilišne rukometne ekipe Kineziološkog fakulteta) muškog spola u 5 testova kojima se najviše približilo aktivnostima tijek...

The goal of the present study is to examine the metric characteristics of newly constructed scale for examining the attitude towards alcohol. The research sample consists of 791 examinees aged 40 to 65, coming from different places in the Republic of Croatia. In accordance with the goal of research, 423 men (53,5%) and 368 (46,5%) women have been e...

The goal of the present thesis is to examine the stand toward alcohol in sport regarding the gender. The research sample is constitute of 791 examinee in age of 40 to 65 years, coming from the different places in Republic of Croatia. In accordance with the goal of research, next number of examinee has been examined – 423 men (53,5%) and 368 (46,5%)...