The goal of the research was to determine the effects of six weeks of isoinertial training on explosive strength, speed, and agility compared to traditional strength training in tennis players. The subjects, thirty male tennis players aged 20 to 35, were divided into three groups: the experimental group 1 (E1; n=10), which performed strength training on an isoinertial device; the experimental group 2 (E2; n=10), which performed traditional strength training; and the control group (C1; n=10). E1 and E2 groups had a total of six weeks of training with two training sessions per week, with three exercises per training session performed in four series for six to eight repetitions. The results showed that isoinertial strength training has a positive effect in the variables squat jump (SJ), countermovement jump (CMJ), 5-meter sprint (5M), 20-meter sprint (20M), agility T-test (T-test), and 505 agility test (505). Post hoc analysis revealed that there are significantly better effects of isoinertial training compared to isodynamic training in the countermovement jump (CMJ), 5-meter sprint (5M), and 20-meter sprint (20M). The E1 group had significantly better results than the C1 group in all tests. The E2 group had significantly better results compared to the C1 group in the variables SJ, 20M, and T-test. The results also show that six weeks of isoinertial training produce better results in the development of variables CMJ and 20M compared to the traditional strength training group. Accordingly, fitness and tennis coaches should also use this training method when working with tennis players.

Modern directions in the development of physical education in the world emphasize the importance of health-related physical fitness (HRPF), with special attention to the development and monitoring of knowledge about HRPF through the application of a targeted questionnaire. The main goal of this research was to analyze the characteristics of the HRPF questionnaire adapted to the Serbian language. After adjustment to Serbian language and terminology, questionnaire was administered to a sample of 270 children, 175 children of the fifth grade (11 to 12 years) and 95 children f the eighth grade (14 to15 years). In both subsamples, the questionnaire has shown good internal consistency (Cronbach's α was 0.73 for fifth grade and 0.67 for eighth grade) and good features of most questions. The results also suggested problems with three questions which needed adjustment for further use: Question Q2 - Jana wants to do something after school what would help her to become successful in the football team she plays in, she should; Question Q11 - Volleyball is good; Question Q25 - If you want to be stronger, you should. After that kind of implementation, the questionnaire can be recommended for evaluation of HRPF of older primary-school children.

Well-being is the assessment of individual experiences with pleasant feelings like happiness and life satisfaction. Combined training is recommended for older adults to decrease age-related psychological changes and functional limitations. This systematic review aimed to assess the effects of a combined exercise program on happiness and life satisfaction in physically active older adults. The electronic databases of Google Scholar, Web of Science, and PubMed were searched between 2000 and 2023 for available literature. The searched keywords were: older adults, training, exercises, happiness, and life satisfaction. After completing the investigation, 931 publications were found. Inclusion criteria comprised physically active participants aged 60 years and above, along with studies composed in English. Studies in which participants had obesity, diabetes, and other non-communicable diseases were excluded from investigation. The qualitative analysis involved eight studies. These studies ranged in publication date from 2008 to 2022. The participants in the studies were men and women aged from 60 to 79 years. The sample size was 1849 and ranged from 35 to 656 participants. Physical activity was a combination of aerobic training, strength training, stretching exercises, and balance exercises. The most used questionnaire was the Satisfaction with Life Scale (SWLS). The findings indicate that older adults of both genders who underwent combined training programs had higher levels of happiness and life satisfaction. Research has shown that leading an active lifestyle enhances older persons' happiness and satisfaction with life. These results support the importance of maintaining an active lifestyle to improve the mental and emotional well-being of older adults.

The present cross-over study investigated whether a half-marathon race might impose changes in lipid profile, muscle function, hematological parameters, and oxidative status in 10 amateur male runners and whether polyphenol-rich aronia juice may counteract these potential alterations.

Subjects (age 30.8 ± 2.3 years) ran a simulated half-marathon race (21.1 km), after they had consumed breakfast with 200 mL of aronia juice/placebo on two occasions separated by one week. Blood samples were taken at baseline, 15 min, 1 h, and 24 h after the run. 

Results revealed a significant increase in the levels of total, LDL cholesterol, and triglycerides immediately after the run (by 6.97%, 9.23%, and 38.46%, respectively), which tended to return to the baseline values after 24 hours. The activity of lactate dehydrogenase increased significantly after the race and started decreasing 24h after the race, still being 16.18% higher compared with the baseline. The run induced a marked increase in total number of leukocytes, and granulocytes, with an eventual return to the baseline levels.

The obtained results suggest that a half-marathon run is intense enough to cause lipid mobilization, muscle damage and compromise the immune response in recreational male runners. Acute aronia juice intake was not sufficient to attenuate the observed changes.

Health Education programme provides needed preparation of students which should build their personal competence towards avoidance of body mass index (BMI) problems. Therefore, the study compared university students with different health education achievements by mean BMI and determined if the achievements, gender, age range, and class level have significant interactions on mean BMI of the students. Descriptive survey was used and from 222, a sample of 87 Health Education students were purposively selected in the Department of Health, Safety and Environmental Education, University of Benin. A ‘BMI Scale’, a Xiaomi Mi Smart Scale 2 (Model: XMTZC04HM), a standardized measuring tape and the 2022/2023 Senate Approved 100, 200, 300 and 400 Levels Health Education Programme Results were used to collect data. Data were analysed with descriptive and inferential statistics. Results showed that the BMI of university students with different Health Education achievements is possible normal weight with majority of the participants (54.0%), with the possible normal weight having a GPA of 2.40 – 3.49 while the least number of them (4.6%), had a GPA of 4.50 – 5.00. However, different Health Education achievements, gender, age range and class level had no interactions on mean BMI of the students at 0.05 level of significance. Therefore, Health Education students should be encouraged by their lecturers to continuously apply knowledge of Health Education into healthy behaviours appropriate to maintain possible normal weight.

Lumbar disc herniation, a growing condition, significantly impacts work productivity, mental health, and quality of life. It alters functional movement patterns and causes improper compensatory body positioning, leading to muscle dysfunction. Physical exercise is a key treatment for chronic cases. This case study examined a 37-year-old male with moderate triple lumbar disc herniation and degenerative disc changes at L3-L4, L4-L5, and L5-S1. The subject followed a 10-week home-based exercise program performed 4 to 5 times weekly for 45 minutes per session. The program consisted of variations of body-weight exercises, supplemented with additional equipment, and progressively increased in intensity and volume, targeting hip joint mobility and strengthening of deep back, abdominal, and thigh muscles. Initial and final assessments included the Pain Detect test, the Short Form Health Survey-36 on quality of life, Manual Muscle Testing (MMT), Functional Movement Screen (FMS), and body composition analysis. Questionnaires indicated significant pain reduction and improvements in physical condition and psychosocial well-being. MMT improved from 4 to 5, FMS from 2 to 3, and body composition showed positive changes: weight (+1.5%), body water (+3.4%), skeletal muscle (+2.8%), and body fat (-6.6%). The subject reported substantial pain reduction, improved physical condition and psychosocial well-being, as well as enhanced muscle strength, functional movement patterns, and body composition. This case study highlights the program’s effectiveness in treating lumbar disc herniation and enhancing quality of life. Additionally, the program is suitable for preventing lumbar disc herniation and improving overall quality of life in the broader population.

Exercise-induced energy expenditure (ExEE) is commonly adopted as a mean to volitional body mass loss. ExEE can also modulate physical activity energy expenditure (PAEE) and potentially limit the rate of body mass loss. The detrimental effect of ExEE on PAEE may be more prevalent in women than in men. This study was to investigate the sex differences in regulation of PAEE and body mass change following an acute exercise-induced perturbation in energy balance.  In this 3-week study, 4 men and 6 women with body mass index (BMI) of 28.8 ± 2.3 kg/m² were required to exercise on a leg ergometer, expending 15% of their total daily energy expenditure (TDEE) in each exercise session of week two (Exercise week). Participants had to complete three exercise sessions within the same week and on non-consecutive days. PAEE was assessed via wrist-worn accelerometers over the entire study period. Resting metabolic rate (RMR) and body composition were measured at the beginning of the study. Men had significantly greater stature (p=0.021), body mass (p=0.035) and resting metabolic rate (RMR) (p=0.01) than women. Whereas women body fat % was significantly greater than men (p=0.004). At the end of the study, there was no significant difference body mass % change (p=0.409) and ExEE (p=0.91) between men and women. There was no significant main effect of time for PAEE (p=0.613), or between sex (p=0.470). Three bouts of ExEE performed within the same week did not alter PAEE in men and women with overweight and obesity.

Recently, entrepreneurship has become increasingly attractive to sports and physical education students. As a result, many students recognize entrepreneurship as an opportunity for career development and the achievement of professional goals. This study examines the entrepreneurial preparedness of sports and physical education students, revealing significant gaps in essential business skills despite high entrepreneurial interest. The findings highlight the need for enhanced educational programs to better equip graduates for successful entrepreneurial endeavors. Based on previous research, to analyze the readiness and understanding of entrepreneurship among students, assess their entrepreneurial capabilities, and evaluate their level of competence in running their own business. The following academic databases were used for literature search: Scopus (158 sources) and Web of Science (104 sources). A total of 262 references were found. After removing duplicates, 234 references remained. The following inclusion criteria were applied: 1. Articles published since 2010; 2. Studies written in English; 3. Research focused on the topic of entrepreneurship in sports and student entrepreneurship. The results of this study indicate that entrepreneurship in sports faces significant challenges, including limited employment opportunities and a lack of essential entrepreneurial skills among students. These challenges hinder the development of successful entrepreneurial initiatives in the sports sector, as students often lack adequate training in the areas of starting and managing a business. Moreover, the job market in sports offers relatively few employment opportunities, further complicating students' ability to find jobs or start their own entrepreneurial projects in this specialized field.

This study examines user satisfaction with the upgraded eSavezi sports information system of the Provincial Secretariat for Sports and Youth, Autonomous Province of Vojvodina (APV). The 2024–2025 upgrade introduced advanced search, multi-format data export, faster processing, expanded cloud storage, a universal cost management module, standardized financial planning, program consolidation, and centralized document upload. A cross-sectional survey was conducted from May 5–20, 2025, with 257 provincial sports association administrators (~12% coverage). Data were collected via an online five-point Likert scale questionnaire and analyzed using IBM SPSS Statistics.Results indicate high satisfaction with all features, particularly data export, storage capacity, and administrator support. All eight hypotheses were confirmed, demonstrating the system’s contribution to operational efficiency, transparency, and digital transformation in sports administration.

Introduction: Adolescent idiopathic scoliosis (AIS) is a three-dimensional spinal deformity characterized by lateral curvature, vertebral rotation, and sagittal imbalance. It affects 2–4% of adolescents, predominantly females (7:1 ratio). Progressive deformity can cause respiratory dysfunction, chronic pain, and psychosocial distress. Developing effective conservative treatments remains a major challenge in orthopedic rehabilitation. This study aimed to evaluate the effectiveness of combined Schroth therapy and 3D-Chêneau bracing in managing AIS, focusing on sagittal alignment, postural control, and functional improvement. Material and Methods: A prospective quasi-experimental study was conducted with 60 adolescents (mean age 13.3 ± 1.6 years) diagnosed with AIS (Cobb angle 20°–47°). The intervention consisted of two phases: an intensive 3-week supervised Schroth exercise program (21 sessions) followed by continued home exercises combined with a custom 3D-modified Chêneau brace. Assessments were performed at baseline, 4 weeks, 3 months, and 6 months. Primary outcomes included sagittal balance (mm) and sagittal index (mm), evaluated by standardized plumb-line analysis. Results: After six months, significant improvements were observed in sagittal alignment (p < 0.001). Sagittal balance increased toward the physiological reference (~20 mm), indicating improved postural symmetry and trunk stability. Sagittal index values reflected curve-specific and localization-dependent adaptations, particularly in thoracic deformities. Conclusion: Combined Schroth therapy and 3D-modified Chêneau bracing effectively enhanced sagittal spinal alignment in adolescents with AIS. This integrated conservative approach demonstrated measurable improvements in physiological balance and postural organization, supporting its role as a functional, noninvasive intervention for AIS management.