Background: The development of the sports industry was impacted by the era of Big Data due to the rapid growth of information technology. Unfortunately, that has become an increasingly challenging Issue. Objectives: The purpose of the research was to analyze the scientific production of Big Data in sports and sports-related activities in two databases, Web of Science and Scopus. Methods/Approach: Bibliometric analysis and topic mining were done on 51 articles selected after four exclusion criteria (written in English, journal articles, the final stage of publication, and a detailed review of all full texts). The software tool used was Statistica Data Miner. Results: We found that the first articles appeared in Scopus in 2013 and WoS in 2014. USA and China are countries which produced the most articles. The most common research areas in WoS and Scopus are Public environmental and occupational health, Medicine, Environmental science ecology, and Engineering. Conclusions: We conducted that further research and literature review will be required as this is a broad and new topic.

Introduction: The purpose of the research was to analyse the injuries of primary school children in the framework of organised sports activities at school and in clubs or associations, and in leisure time without professional guidance. Methods: We surveyed 631 participants, of which there were 282 boys and 349 girls from eight Slovenian primary schools. Frequencies were calculated and a Chi-square test was performed. Results: In physical education (PE) at school, 32% of the participants were injured in one school year, and there were no statistically significant differences in the number of injuries according to sex (p=0.18) and age (p=0.12). Most injuries were recorded in the lower extremities (50%), in the form of wounds. The participants were injured less often in PE at school than in a club or association, and more often than in their leisure time. The participants were absent from PE classes for longer after an injury in a club or association than in PE, while no significant differences in absences after injury were found. At school, the participants were most often injured in ball games, boys in football (43%) and girls in volleyball (19%). In activities in a club or association, we recorded the most injuries in boys in martial arts (18%) and dance for girls (19%). In their leisure time, boys suffered the most injuries from football (26%) and cycling, while girls suffered the most from running and rollerblading. Conclusion: In the last ten years, the number of injuries in PE has increased in Slovenia. Based on the obtained results, we propose measures to reduce injuries and thus encourage more sports activities among children and adolescents, while ensuring their safety.

The aim of the study was to determine whether obstacle course and circuit training areefficient teaching methods as forms of exercise in terms of their intensity, monitored by usingenergy expenditure measuring devices. The key differences in energy expenditure between thetwo teaching methods were examined. The BodyMedia SenseWear equipment for measuringenergy expenditure was used to acquire data from two practice sessions. A sample ofparticipants included 24 five-year-old children from one kindergarten in Ljubljana, althoughcomplete data from both afternoon practice sessions was obtained only from 12 children. Thestudy has shown that obstacle course and circuit training are adequate teaching methods, asmoderate to vigorous intensity was achieved with both methods when practicing the ABCs ofgymnastics. The average energy expenditure has exceeded 7 MET in the main part of twopractice sessions for both obstacle course and circuit training. The results showed nostatistically significant differences in energy expenditure between genders or the specificteaching method used.