Assessing Motivational Factors in Young Serbian Athletes: A Validation Study of the Sport Motivation Scale-II.

Background: Motivation is considered crucial in sports participation and performance, influencing athletes' psychological well-being, investment in training, and interpersonal relationships. Self-determination theory (SDT) is a prominent framework used to understand motivation in sports, highlighting the importance of autonomous motivation for optimal performance and well-being. A large number of questionnaires for examining processes in sports were created by relying on the constructs of SDT.

Mental skills in Serbian handball players: In relation to the position and gender of players.

Objectives: Despite the potential link between mental skills and athletic performance, little is done to examine handball players' present level of mental skills concerning their performance. To begin with, the study has three folded aims; the first one is to examine the factor structure of Bull's Mental Skills Questionnaire, which was developed in the United Kingdom to measure selected mental skill, of Serbian athlete population. The second aim is to determine gender differences in those mental skills, and the third aim is to determine differences between the playing positions in the mental skills of handball players to create a mental profile of Serbian handball players.

Cardiorespiratory Fitness and Health-Related Quality of Life in Secondary School Children Aged 14 to 18 Years: A Cross-Sectional Study.

The main aim of this study is to examine age and gender differences in cardiorespiratory fitness (CRF) among Serbian secondary school children. The secondary aim is to explore the association between CRF and quality of life in Serbian adolescents. The sample consisted of 579 adolescents (285 males), aged from 14 to 18 years old.