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. 

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.

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.

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 purpose of this research was to examine the effects of certain technico-tactical elements of the Baskin game as a predictor of the achieved result in the 2nd European Cup matches. The following variables were analyzed: number of balls brought to the side basket, saved balls by role 2, saved balls by other roles, three-point shots by role 2, scored points from the corner by the role 2, role 2 misses, number of points by roled 1-5. The Mann-Whitney test was used to evaluate the differences in relation to the outcome of the match (win, loss) and certain technico-tactical elements. The obtained results indicate statistically significant differences between the winning and losing teams in fourteen analyzed games for points scored from the points scored by players with role 3.

Physical fitness (PF) is an exceptional indicator of health in childhood and prevents chronic conditions in adulthood. Various exercise modalities have been studied for their impact on children's PF, but rhythmic-based exercises have received less attention. Hence, we structured the rhythmic-based exercise program to provide an approach to developing children's PF over ten months. The non-randomized pre-post-controlled 2x2 design included 154 children (REG, rhythmic-based exercise group, n=75, CG, control group, n=79). We assessed PF performance using the modified 20 m shuttle run test, the standing long jump, the 30-second sit-up test, and the sit-and-reach test before and after 10 months of rhythmic-based exercise program. The 2x2 mixed ANCOVA showed that all PF test performances improved significantly more in REG than in CG from a small (Standing long jump for 3%), across medium (Sit-ups for the 30s for 12%), to a large extent (Modified 20 m shuttle run test for 14% and Sit and reach for 23.1%). The rhythmic-based exercise program provoked extensive flexibility and overall muscular and cardiorespiratory fitness developments. Further randomized controlled trials should be conducted to support or contrast our results.

Although sedentary behavior (SB) is still an under-researched area, some studies have shown a significant association between prolonged sitting and an increased risk of mortality, due to various causes, independent of physical activity. Despite the health risks, there are currently no specific guidelines for individuals to self-assess their SB. A pilot observational study was conducted as part of the »Knowledge for Health« event. A short online quiz “Sedentary meter” was developed, consisting of a pictorial scale to help event participants assess their daily sedentary time and to promote a better understanding of the associated health risks. The quiz questions were formulated based on the WHO definition of SB. The participants’ task was to subjectively estimate the amount of sedentary time in various types of SB on a typical day. The results obtained for SB could then be immediately compared with the figurative scale based on the WHO guidelines. The analysis confirmed SB (533.0±224.7 min/day) in all age groups, although possible differences according to the type of SB were noted. Despite statistically non-significant differences, those between age groups may indicate the extent to which SB can be individualized. The differences between age groups may indicate the importance of considering SB which can be targeted based on each age group's daily routine. The simple tool for accessing SB raised awareness of which specific type of SB accounts for the majority of participants' daily sedentary time. The self-critical acceptance of the “poor results” across all age groups shows the effectiveness of the initiative in raising awareness of SB issues.

Rotator cuff calcific tendinitis (RCCT) is an acute or chronic painful condition due to the presence of calcific deposits inside or around the tendons of the rotator cuff. Effective treatment of RCCT is crucial for restoring shoulder function, alleviating pain, and enhancing the patient’s quality of life. The treatment of RCCT is mainly divided into surgical and non-surgical treatment. Conservative treatment has been regarded as the first-line therapy, but the effectiveness of these treatments is still not well-established. When conservative treatment fails, invasive treatment, either minimally invasive or surgical, is usually indicated. Nowadays, low-dose radiotherapy has been used for the treatment of various benign conditions, including calcific tendinitis. We presented a 56-year-old female patient with intense pain and limited mobility of her left shoulder. X-rays and ultrasound of the left shoulder showed a massive oval calcification along the greater part of the m. supraspinatus measuring 41x8mm. The patient was first treated with diclopram, peranton gel, and rest. After that, it was decided to try low-dose radiotherapy. It was performed on the Vitalbeam radiotherapy platform with a conformal technique in doses of Gy 8 and 10 fractions. After the last fraction, the pain gradually disappeared and mobility was regained. The ultrasonography control 2 months after the last session showed the total disappearance of the calcification. The use of low-dose radiotherapy for benign conditions is a topic of ongoing debate in the medical community. In this case, low-dose radiotherapy proved to be an adequate method of choice without accompanying side effects, resulting in complete healing and improvement of quality of life.