In this article we reviewed the literature on injuries and their mechanisms in bodybuilders. Bodybuilding is a weightlifting sport where the main goal is to increase muscle mass while maitaining body symmetry. From a biomechanical point of view, it is important to analyse technical performance of exercises to improve sports technique. Compound exercises based on the development of muscle hypertrophy must be included. The training is different before and during season, in pre-season it is based on reduction of body fat to a low level and a high volume of aerobic exercise. Adequate nutrition, use of supplements and banned substances are widespread in the sport. In that case athletes should be very careful for banned substances in accordance with WADA Code. The most commonly performed exercises where injuries happen are the squat, deadlift and benchpress. The majority of injuries (60 %) are acute, with 93 % shoulder joint injuries, 85 % lower back injuries and 80 % knee injuries. The incidence of injuries is low compared to other sports, between 0.24/1000 hours of training or 0.12 injuries per lifter per year. The most common type of injury is muscle strain, followed by tendinitis and cartilage wear. So it is therefore important to identify risk factors to allow the development of appropriate prevention programs. Muscle ruptures are common with high eccentric loads, with pectoralis major tendon being the most vulnerable to be injured. Than followed by a rupture of biceps femoris during the deadlift exercise, during sudden flexion of the hip joint while the knee is extended. Eccentric contraction and rupture also occurs in the quadriceps muscle, which lifters try to avoid by performing low-bar squat. Uncontrolled abdominal pressure during high-weight exercises causes discus hernias, which lifter can prevent by breathing correctly and using strong muscle stabilizers. The most well-known injury of all is elbow burzitis or »Bodybuilders elbow« due to repetitive flexion and extension movements of elbow joint. To prevent this injuries we have to include preventive measures such as medical check-ups, education of athletes, ensuring safety in competitions, appropriate training and load distribution, treating the body as a whole and regular equipment check-ups.

The exploratory study is grounded in field research, utilizing semi-structured interviews with active, former, and recreational athletes in combat sports. The first section outlines key theoretical frameworks that address everyday life, lifestyles, and the issue of doping. The second section presents the main findings from the field research. Interviewees detailed the positive effects of doping on athletic performance while also acknowledging significant side effects, including physical and psychological consequences. Participants highlighted that the availability of information on doping has increased with the advent of the Internet and specialized retail outlets. The testimonies indicate that the culture of doping is driven not only by the pursuit of enhanced sports performance but also by aesthetic considerations and social pressures, underscoring the complexity of doping use in both professional and recreational sports. The study concludes that doping is a pervasive issue in combat sports, necessitating comprehensive social action and collaboration among policymakers, social stakeholders, and researchers across multiple disciplines, with a prominent role for physical education and sports sciences.

The COVID-19 outbreak and svift policy response affected the everyday lives of youth in Serbia, challenging their mental well-being. Aiming to examine the relationship between physical activity level (PAL) and mental well-being of adolescents during the strictest lockdown in Serbia, in April 2020, we analyzed data collected through the national online survey (N = 3089). According to the self-reported moderate-to-vigorous physical activity (MVPA), participants were divided into three groups: 1) engaged in MVPA for at least 60 minutes every day; 2) engaged in MVPA for at least 60 minutes on 4-6 days per week; and 3) engaged in the same amount of MVPA on 0-3 days per week. Mental well-being measures included life satisfaction, self-rated health, and health complaints. An one-way ANOVA detected a significant effect of adolescents’ PAL on their life satisfaction, F(3,27) = 49.64, p = 0.000. The Tukey test showed that the mean life satisfaction was significantly higher in the most active group (M = 8.66, SD = 1.56) than in the moderately active group (M = 8.27, SD = 1.56), and the least active group (M = 7.93, SD = 1.76). The chi-square tests revealed significant associations between adolescents’ PAL and health complaints; less active adolescents were more likely to experience symptoms like headache, nervousness, feeling low, irritability, sleep difficulties, and dizziness (p ≤  0.00). They also experienced multiple health complaints more frequently and self-rated their health less favorably. Therefore, physical activity should be promoted as a protective factor for adolescents’ mental well-being, particularly in emergencies. 

We are delighted to invite you to the 3rd International Scientific Conference “Novelties in Sport Science.” This event serves as a premier platform for researchers, practitioners, and enthusiasts to exchange ideas and explore the latest advancements in sports science.

The conference showcases a diverse range of topics, reflecting the dynamic and evolving nature of this field. From the role of probiotics in athletic performance to the ethical contrasts between martial arts and Western sports, the proceedings highlight a balance between tradition and innovation. Cutting-edge tools like the "Ski Easy" methodology and transformative findings in injury prevention and active aging underscore the impact of science on physical activity and health.

This year, special attention is given to sustainability and inclusivity. Presentations on sustainable sports tourism in Vojvodina and environmentally responsible sports practices emphasize the alignment of sports science with the United Nations' Sustainable Development Goals. Other contributions delve into the intersection of education and technology, exploring topics such as teaching English to sports professionals and using wearable devices to enhance cardiovascular health.

The global contributions at this conference reflect a shared mission to foster collaboration and innovation. From improving injury recovery to engaging youth through cognitively enriched activities and advancing talent identification tools, these studies demonstrate the power of sports science to enhance quality of life across diverse populations.

We extend our sincere gratitude to the authors, reviewers, and organizing committee for their invaluable efforts. Let this event inspire meaningful dialogue, foster international partnerships, and drive new advancements in our field.

Together, we continue to push the boundaries of sports science, ensuring its relevance in an ever-changing world.

Patrik Drid and Damjan Jakšić

Proprioception and kinesthesia refer to the sense of joint position and movement, assessable through joint position sense (JPS). We evaluated the potential of the KEMTAI software system in tracking and quantifying shoulder movement by examining 40 subjects (ages 22-68) divided into three age groups. Subjects, blindfolded, performed shoulder flexion, stopped on voice command and by their own at predefined angles measured by the software. Our findings indicated no significant differences in JPS accuracy across age groups, although precision improved with external cues, and a decline in JPS memory over short intervals was observed, suggesting further exploration is needed.

Previous research indicates that vestibular perception is related to muscle tone regulation. Muscle tone influences auditory and visual perception. Research findings suggest that the functioning of primitive reflexes affects the maturation and condition of the vestibular organ. The goal of the study is to examine whether the primitive reflex profile can be influenced by appropriate exercises and whether inhibition of persistent primitive reflexes affects vestibular functions. The sample consisted of 506 children aged 5–8 years (237 boys and 269 girls). In kindergartens and schools, 443 participants performed reflex inhibition exercises 3–5 times a week for 7 months. A control group of 63 individuals attended only regular PE lessons. Input and output results were compared using the Mann-Whitney test, and effect sizes were calculated. Input primitive reflex profile and vestibular maturity: not significant. Effect size: primitive reflex profile: 0.109; vestibular maturity: 0.052. Output: primitive reflex profile: p <0.001; vestibular maturity: p <0.001. Effect size: primitive reflex profile: 0.572; vestibular maturity: 0.306. The results obtained with appropriate non-parametric measurements show that children participating in the intervention achieved statistically significantly higher scores in all tested variables of primitive reflex profile and vestibular maturity compared to the control group. The children in the intervention group showed significant improvement in both primitive reflex profile and vestibular maturity: p <0.001; effect size: primitive reflex profile: 0.714; effect size: vestibular maturity: 0.664; while there was no significant improvement in the control group: effect size primitive reflex profile: 0.01; vestibular maturity: 0.06. We found a strong, significant correlation between the inhibition of primitive reflexes and vestibular maturity: r=0.000; rho (ρ)=0.000. Based on this study we recommend incorporating these exercises into physical education for 5–8-year-old children.

Previous studies indicate that there is a large influence of the starting reaction time (RT) on sprint performance, but also that some recent changes in athletic rules may affect this correlation. This study aimed to examine the relationship between RT and results in: men’s (M60mH) and women’s (W60mH) disciplines 60 m over hurdles, 60 m hurdles in the heptathlon (H), 60 m hurdles in the pentathlon (P) at the recently held World Indoor Championship 2022 (WIC). The aim was also to determine whether there are differences in RT between M60mH and W60mH, M60mH and H, W60mH, and P, and between H and P. The study included 170 competitors who competed at the WIC. Pearson’s linear correlation coefficient (r) was used for correlation analysis, and the t-test for independent samples was used to examine differences between groups. A statistically significant correlation (r=0.23, N=72, p=0.05) was found between the results and RT in W60mH when observing the entire sample of participants (r2 = 5.29). Considering that in H (r=0.42, N=10, p=0.23, r2=0.18) and P (r=0.54, N=12, p=0.07, r2=0.29), a much higher correlation was obtained between results and RT than in competitors in the 60 m hurdles event, we believe that this is a consequence of different athletic rules that refer to a false start. There are no significant differences between RT for M60mH and W60mH, M60mH and H, W60mH, and P, and between H and P. Coaches should pay attention to developing all parts of the sprint race, including the reaction time.

Adequate development, testing, continuous motor competence monitoring and physical fitness are very important factors in the development of children aged 7 to 10. The purpose of this study was to determine the differences in the motor competence of the children engaged in organized physical activities in sports clubs and the children who were not included in any kind of organized physical activity. The study included 119 children, 57 children engaged in organized activities in sports clubs (age: 8.44 ± 0.78; height: 133.17 ± 7.21; weight: 31.96 ± 7.73 BMI: 17.9 ± 3.38) and 62 children who had no additional organized physical activity (age: 8.43 ± 0.84; height: 134.85 ± 7.60; Weight: 34.44 ± 9.20 BMI: 18.7 ± 3.68). Motor competence was assessed by the Kiphard-Schilling body coordination test (KTK). After adjusting for age, gender, and BMI effects, we found small to medium significant mean differences (p<0.05, d [95%CI]) between the groups in hopping for height tests (d=0.78 [0.41, 1.16]), jumping sideways (d=0.79 [0.42, 1.17]), moving sideways (d=0.68 [0.32, 1.06]), and walking backward (d=0.44 [0.07, 0.81]). The results have shown that the children who were engaged in organized physical activities in sports clubs have a higher level of motor competence than their peers who were not included in the organized system in sports clubs. The authors strongly suggest that teachers, educators, coaches, and parents should encourage and include children in organized systems of physical activity, i.e., training processes in sports clubs.

This transversal study aimed to examine the contribution of predictor variables of the construct of health status (objective and subjective assessment of health) to the variability of the criteria satisfaction with life, emotional dimensions (positive affect, negative affect), and emotional factor of distress (depression, anxiety, and stress) in junior handball players. The pertinent sample consisted of 132 junior handball players in – Serbian First League. The average age of participants was 18.25 ± 0.90 years of age. The following measuring instruments were used: 1) the Depression, Anxiety, and Stress Scale – DASS-21, 2) De Jong Gierveld Loneliness Scale – DJGLS, 3) the Satisfaction with Life Scale‒ SWLS, and 4) The Positive and Negative Affect Schedule – PANAS showed satisfactory internal consistency. The conducted multiple regression analysis explained 51% of the proportion variance of the dependent variable satisfaction with life, positive and/or negative affectivity, and cognitive aspect of distress, where the only statistically significant negative predictors were loneliness and subjective assessment of health status. At the same time, when it comes to the assessment of loneliness in adolescents, these independent variables achieved significant interaction with the subjective assessment of health. This would mean that handball players, who subjectively assess their health as bad, and feel lonelier. On the other hand, the regression model did not confirm the role of the predictor variable objective assessment of health status and loneliness. This regression study has contributed to the existing literature and empirical data on the significance of the rarely explored relations between the constructs of health and well-being in the adolescent sports population. Theoretical contributions and practical implications for future research were also discussed.

The aim of this study was to show the influence of linear speed on the ability to change the direction of movement. Nineteen football players (16.90±2.28 years old) from the Serbian Super League participated in the research. Tests were performed to estimate speed: the linear speed at 5 m, 10 m, 20 m, and flying start at 10 m, and the 505 test for dominant and non-dominant leg, as well as CODS deficit, were applied to assess the ability to change direction. Using regression analysis, it was shown that linear speed has no statistically significant effect on the ability to change direction with elite female football players (P<0.05). In interpreting the results, several factors should be taken into account and the complexity of the linear speed relationship and the ability to change direction should be understood. The findings we gained from this research could influence the modification of training cycles, primarily strength, movement mechanics, and later more specific training episodes of football players.