Workplace stress or professional stress is a specific type of stress that is highly prevalent among police officers. Police officers are exposed to high levels of stress and its negative impact ontheir physical and mental health, as well as their social lives. The aim of this research is to determine the attitudes regarding the connection between physical fitness and stress prevention among police officers. The sample consists of 516 employees from police departments in the Central Bosnia Canton. The sample is structured with 312 male participants and 204 female participants. Both descriptive and analytical methods were applied in this research, as the descriptive method was used to describe the distribution of the studied phenomenon, while the analytical part followed the logic of the research. Analyzing all the results, it can be concluded that there is a high level of satisfaction with the management of work processes among police officers and with stress reduction in the workplace. The conclusion arises about the necessity of increasing the number of hours of police training, primarily for basic and investigative police work, in stress prevention among police officers. The results of comparative analysis indicate that there is no statistically significant difference among participants based on gender. The results show that the age of the participants significantly influences their attitudes towards overall satisfaction with management quality. Theresults suggest that participants who have been employed the longest and make the most use of the existing infrastructure express more positive attitudes.Key words:police, stress, physical fitness, burnout, prevention.

The aim of this research is to determine the differences between the aerobic functional abilities of football players from different positions in the team, which should serve as a starting point in planning and monitoring the training process of football players. VO2max, as a basic parameter of functional abilities, was obtained by applying a laboratory progressive test on the treadmill. The sample of respondents was composed of 57 respondents (GOD = 22.47 ± 3.78SD), football players of clubs competing in the first and second leagues of Serbia from the area of Vojvodina, of which 8 goalkeepers, 16 defensive, 17 midfielders and 16 attackers. To test the functional capabilities (oxygen consumption - VOmax), we used a test of progressive continuous load on the treadmill with increasing load per minute through a "breath-by-breath" gas analyzer (Quark PFT ErgoCPET, Cosmed, Italy), which gave data on ventilation and spiroergometric parameters of the subjects by different positions in the team. Anthropometric measures of body weight- (TM) and body height- (TV) were applied to test the morphological characteristics of the subjects. SPSS 20.0 software package was used for data processing. In order to determine the statistically significant differences of the measured variables between football players by positions, a one-factor anova of different groups, the level of statistical significance (p <0.05) was used. The obtained results of maximum oxygen consumption indicated that there is a statistically significant difference in aerobic abilities between goalkeepers and players in other positions, and they are certainly a consequence of the physiological requirements placed before them and the different training process. The highest mean value of VO2 max had midfielders (53.3 ± 1.9 ml / kg / min), followed by attackers (52.9 ± 4.4 ml / kg / min), defensive players (51.8 ± 3, 3 ml / kg / min) while the lowest values were recorded in the goalkeeper (50.5 ± 1.8 ml / kg / min). There is a logical conclusion that the need for running midfielders is the greatest, and the goalkeeper the least, and that the results are the result of training processes and different requirements for individual positions in the team.

The research was conducted on a sample of 70 respondents-swimmers aged 13-15 years of swimming clubs from Sarajevo Canton/Federation of BiH, with the aim of determining the significance and magnitude of the impact of selected basic motor skills on the implementation of specific motor tasks in swimming (navigability in place, sliding length with reflection from water, start from starting block, parallel). The study used 10 variables to assess basic motor skills, which were the input or predictor set of variables, and three variables to assess the efficiency of specific motor tasks in swimming as a criterion, each variable from the battery of specific motor tasks was considered as a criterion on the predictor set of basic-motor variables. Three mini regression analyzes were applied to determine the statistical significance and relative influence of basic motor skills on the realization of specific motor tasks in swimming (buoyancy in place, length of sliding with reflection from water, start from the starting block, parallel). The results of regression analyzes indicate that the greatest influence on the overall efficiency in the implementation of specific motor tests in swimming, looking at all criterion variables together, from the set of basic-motor variables, as a predictor set, show the following variables: stick twist-MFLISK MFLPRK, plantar flexion-MFLPL, long jump from place-MFESDM, agility on the ground-MKOKNT and shelter in lying-MRCZTL. The results obtained in this research can be useful for teachers and swimming trainers who work with younger age categories for the purpose of better programming of training work and selection of training content.

The aim of this study was to determine the effects of programmed kinesiological treatment on transformation of postural spinal status in the sagittal plane kyphosis and fl at feet pes planus, in IV to VI grade pupils (second triad of nine-year elementary school). The study was conducted on a 290 pupil sample. Eight (8) variables were applied in the study to evaluate postural spine status kyphosis and fl at feet pes planus. The research had a longitudinal character. The use of contingent tables shows the frequencies and the corresponding percentages increase the deformity of the spine kyphosis and fl at feet pes planus. The results of the study indicate the statistical signifi cance of the percentage of deformity of the kyphosis and fl at feet pes planus. Changes in the arch of the feet and spine are mainly in the fi rst stage of deformation, which also enabled the correction of the condition with the application of programmed kinesiological treatment. Therefore, in the global assessment of the quality and justifi cation of the use of programmed kinesiological treatment for one school year, we must state that it contributed to the improvement of the deformity of the kyphosis and the fl at feet of the research sample of pupils.

The aim of this research is to determine the possession of predisposition for the success of doing business management in the sport. The study was conducted on a sample of 120 managers of sports clubs in Tuzla Canton and Brcko District. A sample of 20 variables is drawn from the survey “Do you have the potential to be a manager?”. Survey results showed that 31 respondents possess many skills and abilities that are required for a successful manager, 63 respondents have some of the skills and abilities to successfully manage, and 26 respondents do not possess adequate skills and the ability to successfully manage others.It is obvious that respondents who want to be successful managers need to pay attention to the managerial skills and techniques in which they feel the weakest.It is logical that different levels of management require different levels of given skills and knowledge. At lower levels of management the need for a higher level of technical knowledge is pronounced. The fact is that –top managers, in contrast to managers at lower levels of the organization, must have a high ability of conceptual thinking based on a high degree of creation and imagination. These are the qualities and skills that cannot be acquired through the educational process.

The aim of the research was to determine the effects of applied technical and tactical characteristics of table tennis players on their success in competitions. The representative sample consisted of 48 top senior table tennis players from Bosnia and Herzegovina, age 18 and 36, selected on the basis of a qualification tournament. The measuring instruments for this study included eight assessment tests for the table tennis players' technical and tactical characteristics and one test for assessing success in table tennis competitions. Technical and tactical characteristics of the participants were evaluated by five experts who analyzed the efficacy of technical and tactical characteristics of the players on a scale ranging from 1 to 5. The methods of processing the results included descriptive statistical procedures, the multiple correlation coefficient, the determinant coefficient and a multiple regression analysis. The results indicate that technical and tactical characteristics have a major impact on the player's performance and are essential for table tennis success. Based on the value of the regression coefficients and their significance, it may be concluded that the 5 variables statistically significantly contribute to the regression model are: the efficiency of the serve; the efficiency of preventing the attack of the opponent and preparation of the players’ own attack; confidence when attacking across the table; the efficiency in the active defence and the efficiency of movement during the game. In the hierarchy of significance, the most important variables are the serve efficiency and efficiency of preventing the attack of an opponent and preparation of the player's own attack. The efficiency of the serve allows an attacker to realize technical and tactical ideas and usually gain initiative in the game. By returning a serve we can prevent or at least make it harder for the opponent to attack again. A serve return can also allow us to take the initiative 

The main aim of this research is to identify the kinesiological differences in approaches and methods of training in the field of Crossfit and Bodybuilding, based on the kinesiological, anthropological and technical characteristics, as well as to determine the difference between recreationists and athletes in engagement programs such as Crossfit and Bodybuilding. The survey was conducted on a sample of 84 subjects, namely: 48 recreationists and 36 athletes. Research results show that a far greater number of recreationists are engaged in Bodybuilding compared to athletes. What is the main characteristic of this study is that the recreationists or athletes are not sufficiently informed about the Crossfit program and that it is rarely used in recreational and training activities.

The aim of the research was to determine the effects of applied technical and tactical characteristics of table tennis players on their success in competitions. The representative sample consisted of 48 top senior table tennis players from Bosnia and Herzegovina, age 18 and 36, selected on the basis of a qualification tournament. The measuring instruments for this study included eight assessment tests for the table tennis players' technical and tactical characteristics and one test for assessing success in table tennis competitions. Technical and tactical characteristics of the participants were evaluated by five experts who analyzed the efficacy of technical and tactical characteristics of the players on a scale ranging from 1 to 5. The methods of processing the results included descriptive statistical procedures, the multiple correlation coefficient, the determinant coefficient and a multiple regression analysis. The results indicate that technical and tactical characteristics have a major impact on the player's performance and are essential for table tennis success. Based on the value of the regression coefficients and their significance, it may be concluded that the 5 variables statistically significantly contribute to the regression model are: the efficiency of the serve; the efficiency of preventing the attack of the opponent and preparation of the players’ own attack; confidence when attacking across the table; the efficiency in the active defence and the efficiency of movement during the game. In the hierarchy of significance, the most important variables are the serve efficiency and efficiency of preventing the attack of an Received May 05, 2017 / Accepted May 07, 2018 Corresponding author: Vladimir Ivanek Faculty of Natural-Mathematical and Educational Sciences, Kinesiology Department, University of Mostar, St. Matice Hrvatske n.n., 88000 Mostar, Bosnia and Herzegovina Phone: +387 (0)36355-455 • E-mail: v.ivanek@hotmail.com 158 V. IVANEK, B. ĐUKIĆ, B. MIKIĆ, M. SMAJIC, D. DODER opponent and preparation of the player's own attack. The efficiency of the serve allows an attacker to realize technical and tactical ideas and usually gain initiative in the game. By returning a serve we can prevent or at least make it harder for the opponent to attack again. A serve return can also allow us to take the initiative

This research was carried out on atop atlete, representative of Bosnia and Herzegovina, with the aim of determining the significance and magnitude of the angle value impact (A) of the body segments in the projection (Z) or the sphere length of the sphere 0.1 s before the spit. When selecting variables, it was taken into account that they satisfy the basic metric characteristics (validity, relievability, objectivity, sensitivity ...) and that they are aligned with the technology and instrumentation used to capture and determine their kinematic parameters. In order to determine the magnitude and size of the influence of kinematic parameters of the individual shot put elements (A) in the projection (Z) or 0.1 s before the ball spout (predictor set of variables) on the length (range) of the sphere (criterion variable), regression analysis was used. The regression results of the analysis indicate that there is a statistically significant influence of the angle position (A) of the body segments in the projection (X) or the length of the sphere 0.1 s before the throw-out. Analysis of the influence of individual variables of the angular position (A) in the axis (Z), shows that the most statistically positive impact on the criterion variable length in the ejection time of 0.1 seconds before ejection has a variable angular position of the left shoulder of the level of the seventh cervical vertebra ( AzLC7R). The time span up to 0.1 seconds before the angular position of the left shoulder to the level of the seventh cervical vertebra to the axis (Z) there is as a result of the angular connection (A) of movement in the vertical extension expressed body axis (Z) relative to the projection of the moment of casting and reconciliation.

IntroductionSitting volleyball is sports activity which gives evident positive effects during rehabilitation and general resocialization of persons with physical disabilities. Motorical abilities (handiness, agility, flexibility, endurance, strength, speed and similar are developed through this game) (Mahmutovic & Turkovic, 1999). Sitting volleyball is extremely dynamic game in which all persons with physical disability give maximum of its possibilities thereby achieving positive transformations from any aspect (physiological, psychological, sociological, motor etc) (Mahmutovic & Turkovic, 1999). The movements of the body in sitting volleyball are specific, unnatural and learned, and differ significantly from natural forms of movement. The movements in sitting volleyball have sports purposes and they are most commonly used for activities on the ball (Mahmutovic & Turkovic, 1999). Specificity of the game is such that players "must" sit on the ground during the game or in the course of playing of game elements their gluteal part must be in contact with the ground (Mahmutovic & Turkovic, 1999).Sitting volleyball is a game that involves rally of two teams made up of a maximum of twelve, and at least six members in each. Twelve players participate in game, six in each team. The game is played in three won sets on principle of tie-breaks up to 25 points with a difference of two points in first four sets, and in the fifth set, tie-break is played up to 15 points with a difference of two points. Three balls whose colour, shape and weight is determined per rules of the World Organisation Volleyball for Disabled (WOVD) is used during the game.The rules of the sitting volleyball are structured in a way so that they enable the players to show the best of their abilities, spirit, creativity and aesthetics during the competition. With a few exceptions, sitting volleyball enables all players to play on attack (game on the net) and in defence (in background) and to serve.Like other games with net, it has certain elements such as: service, rotation, attack, defence, but it is exceptional in that the ball must constantly remain in the air and in that it allows certain degree of internal switching of the ball among the players of one team.The introduction of specialized defence player (sweeper) into sitting volleyball allowed for the game to additionally gain on dynamics. Today, there are twenty registered teams in sitting volleyball in Bosnia and Herzegovina which compete in two leagues and which are: First Federal league and Second Federal league. Each league has ten teams. Sitting volleyball is a sport in Bosnia and Herzegovina with most trophies. National team of sitting volleyball has on international level in period from 2001-2013 won 11 gold and two silver medals on international competitions, out of which 7 gold medals were from European Championships, two gold medals and one silver medal on World Championships and two gold and one silver medal on Paralympic Games. Optimal physique is apparently an advantage to volleyball performance. Only when a volleyball team is collectively equipped with all the ideal anthropometric characteristics can the team win the dominance in a game (Chen, 2005). However, as opposed to standing up volleyball, the players in sitting volleyball are recruited from population of persons with disabilities, regardless of morphological and motor predispositions usually preferred with volleyball players, such as longitudinal dimensionality of skeleton, explosive strength, coordination and above all agility. Characteristic which has negative impact on the success of the game is subcutaneous adipose tissue (Cabral, B., Cabral, S., Miranda, Dantas & Reis, 2011; Dopsaj, Nesic & Copic, 2010; Marelic, Ðurkovic & Resetar, 2007). Sitting volleyball can be played by male and female players with damaged movement system which includes classification of International Organisation of Sports for the Disabled (IOSD) for persons with amputations and classifications for other damages of musculoskeletal system (les autres), such as: cerebral palsy, damage to the spinal column, dwarfism, dysmelia, hip and knee arthroplasty with permanent disabilities and similar. …