Purpose: The main aim of this study was to examine and analyse the body composition of young soccer players across different age groups. Methods: A cross-sectional study was carried out among 126 young soccer players divided into age categories: U15 – 53 players (age=14.68±0.47); U17 – 51 players (age=16.47±0.50); U19 – 22 players (age=18.05±0.38). The subjects’ height was measured using an anthropometer, while their body composition was measured using the TANITA BC-420MA digital scale. Results: On average, soccer players in the U15 group had significantly lower body height, weight, body mass index and fat free mass than U17 and U19 players, but had a higher percentage of body fat (p < 0.05). In addition to the percent of body fat mass, which tends to significantly decrease with age, the results also demonstrate significant non-linear increases in body height, weight, and lean body composition concurrent with the players’ ages. Conclusion: These results indicate that younger soccer players have lower absolute values of morphological characteristics compared to senior players.

Background and Study Aim. Musculoskeletal disorders (MSD) are incredibly common and are often related to work load. For any occupational or public health intervention, injury prevention is preferred to injury treatment. Occupational health and injury prevention research has the potential to help mitigate MSD in the workplace. The aim of this study was to determine how the work demands of ski instructors may affect the health of their musculoskeletal system. Material and Methods. A cross-sectional study involved the participation of 87 ski instructors (age = 34.61 ±10.67) in Bosnia and Herzegovina (ATUS in Bosnia and Herzegovina). Observed variables were the prevalence of MSD measured using a modified Nordic questionnaire about injuries during the previous ski season (neck, shoulders, elbows, wrist, upper back, lower back, one or both hips, one or both knees, and ankle). Means and standard deviations for each of the variables were calculated, and differences between genders were examined using an independent sample t-test. Results. Prevalence of MSDs in ski instructors was most common in neck (13.8%), shoulders (12.6%), elbows (4.6%), wrist (9.2%), upper back (10.3%), lower back (46.0%), one or both hips (9.2%), one or both knees (29.9%), and ankle (9.2%). The results showed statistically significant differences in MSD between genders in the neck (p=.034); shoulders (p=.017); upper back (p=.027); one or both knees (p=.003) and in the ankle joint (p=.011). Conclusions. MSD’s are common in ski instructors, especially in the low back and knees of female employees. Future research or injury prevention programs would benefit these populations.

Abstract Introduction The aim of the study was to analyse the deviations of the body posture and to assess the occurrence of spine deformities. Additionally, Body Mass Index in school children was related to the trend in postural deformities for different age groups (5-8 years old, n=112; 9-11 years old, n=205; 12-14 years old, n=212) as part of the project “Spine Lab”, granted from the European Commission IPA founds, investigating the importance of public health issues. Methods Body posture was measured using Contemplas 3D software analyser, based on video image trajectory and BIA weight scale (Tanita BC 420). Overall, 17 variables were assessed, and differences were confirmed using MANOVA analysis. Results The results showed that there is a significant difference between age groups for the measured variables (F=9.27; p<0.01; η2=0.26), suggesting a moderate difference across the age span. Conclusion The study results showed that there is a negative trend of increasing Body Mass Index within the first and youngest age group. The fact is that the trend of increasing deformity of the shoulder belt has been noted, often inclining towards the formation of milder forms of kyphotic posture. Other forms of deformity that are accentuated in the survey results are the negative trend of increasing pelvic rotation and pelvis rotation which inclines towards the formation of lordotic posture for all three age groups.

Background & Study Aim: Karate is sport who has high demands for energy consumption due to constant dynamic movements in training and fights. Transformation process in sport is ability to change body physiology using training methods. The aim of this research are the effects of a three month programmed training on body composition indicators in female karate athletes from 12 to 14 years of age. Material & Methods: Twenty-two female karate athletes from 12 to 14 years of age have been submitted to a three month programmed training. Measuring the body composition indicators was conducted by Tanita BC420SMA – bioelectric impedance analysis (BIA), scale specifically used for the analysis of seven indicators relevant for karate sport, differentiated by weight classes. For determining the programmed training effects, paired sample T-test was used at the level of statistical significance of p<0.05. Results: Three month programmed training resulted in changes regarding weight (p = 0.020), FM% (p = 0.012), FMkg (p = 0.01) and BMI (p = 0.002), and statistically significant increase in variables TBW% (p = 0.007). Concerning the variables FFM, MMSS and TBWkg, there were no statistically significant changes noted. Conclusions: The results of this research have indicated that under the influence of programmed training in karate, positive transformations can be expected within the indicators of body composition in girls between 12 and 14 years of age. Transformation is most certainly a result of natural growth and development occurring in girls, but likewise a combination of programmed training and adequate nutrition.

BACKGROUND: Although transfer of unilateral training has been quite widely explored, few studies have focused on gains achieved due to concentric isokinetic training of the non-dominant side. OBJECTIVE: To examine the effects of unilateral non-dominant (ND) isokinetic knee extension and flexion training at 60◦/s on ipsilateral and contralateral knee extension and flexion peak moment (PM) in active female population as well investigate the speed specificity nature of this protocol. METHODS: Thirty female were divided into two groups: experimental and control. The experimental group trained concentrically the ND flexors and extensors at 60◦/s according to the following protocol: 5–6 reps X 2–4 sets X 3d X 4w at 100% effort while PM at preand post-training was tested concentrically at 60 and 180◦/s. RESULTS: Significant (p < 0.05) increases in the extensors and flexors PM peak moment in both the trained and untrained limb were noted in the experimental group, ranging 19–27% and 12–17%, respectively. The effects were speed specific in the trained but not in untrained limb. No changes were noted in the PM of the control group. CONCLUSIONS: In physically active female population, concentric isokinetic training of the ND knee extensors and flexors at 60◦/s significantly increase the strength of these muscles at the trained and untrained limb. This cross-education was not speed specific and therefore may obviate the need to use a multiple speed protocol.

“Testing Curriculum at the Sarajevo Faculty of Sport and Physical Education” is a Tempus project lead by WUS Austria and University of Sarajevo – Faculty of Sport and Physical Education aiming at comparative analysis of curriculum at the two faculties in Bosnia and Herzegovina and Slovenia and research of the final user group needs for the academic education and science research. Based on the analysis of results this scientific paper tells that different educational processes at the Faculty are coming, which should be directed towards major capacity in the area of organization and management, and no longer exclusively to the processes of physical education (teacher) and training technologies (trainer). Based on this research data, students have a very limited direction in terms of preparation for their future work and in their perception they see their employers exclusively as schools (teaching) and to a lower extent clubs (training). This generally shows in case of all interviewees that there is no good information about possible employers in future outside the schools and clubs. The reason for this situation might be lack of information and interestedness of students in changes occurring in the society, which is present during enrollment, studies and later.

Parallel programming is a form of computation in which the calculations are carried out simultaneously, operating on the principle where large problems can be divided into smaller, which are then solved in parallel. Most common this programming is used in high performance computing, but due to the physical constraints which prevent frequency scaling the interest is even higher. As computers consumption has become a problem in the recent years, the parallel programming has grown into the dominant paradigm in computer architecture, mainly in the form of multicore processors. The paper shows the process of designing parallel programs and it includes some results obtained by testing the parallel programming performance of different nVIDIA GeForce graphics cards. The purpose of the test is to compare performance of several types of GPUs for various applications. The results of the test could not specifically say which GPU is best due to the different features of the cards, but they can be used to determine which card offers better performances for different parts of the tests.