Olympic weightlifting is a dynamic sport with dominant explosive strength that manifests itself in two complex liftings (snatch, and clean and jerk). During these complex movements, the athletes have historically measured and reported incredible levels of strength. The aim of the research was to determine whether there is a statistically significant correlation between body weight and lifted total weight in the elite sample of the world record holders in the period from 1972 to 2015. Based on the results of the correlation analysis in the overall sample of the results from 1972 to 2015, it can be seen that the overall sample of linear correlation is extremely strong, thus the mutual influence of the variables "weight category" and "total" is extremely strong, and with the increase of the former, the latter increases linearly, and vice versa. Based on the results of the analysis of the correlation between the weight classes of the competitors and the totals, separately for each period, one can see that every period reports a strong linear correlation between the variables of "weight category" and "total". Based on the obtained results, we can conclude that the male category does not report statistically significant differences in arithmetic means of the totals for all weight classes. The female category, on the other hand, reports statistically significant differences between groups 1 and 3, which indicate the periods 1988-1992 and 1998-2015. Generally, the female category suggests an increase in the average total value from 1988 to 2015, in contrast to the male category in which this trend is reversed. Considering the results of previous research, starting from the 1980s to the present, we can conclude that the results of the aforementioned conducted research agree almost completely with the previously tested and proven facts.

KAPIDZIC, A.; HASUKIC, S.; MEHINOVIC, J.; ATIKOVIC, A.; MUJANOVIC, A. N. & MUJANOVIC, E. Body mass indexand volume of fat tissue of unemployed men in the Tuzla Canton. Int. J. Morphol., 33(1):158-163, 2015.SUMMARY: The main objective of this study was to obtain information on indicators of obesity among the unemployed malesubjects from the Tuzla Canton. Also, we wanted to determine whether there are significant differences in the observed parametersbetween subjects in relation to age. The main criterion for the selection of test subjects is that they are unemployed. This is because wefelt that those persons have more free time for practicing sports and recreational activities, and there is a very small number of studies inthe area of Tuzla Canton with the characteristics of the sample. For the purpose of this research we applied analysis of percen tage/ratio,t-test for independent samples and the Mann-Whitney U Test. Applied analysis showed that the increased value of Body Mass Index(BMI) and to the account of increased amounts of body fat has 31.5% of the respondents. It also found that there are significantdifferences in the variables Body Mass Index (BMI), body fat percentage (% FAT) and the total weight of fat mass (in kg) in the body(FATMAS-kg) in favor of the subjects belonging to the older age group. The results indicate the existence of the problem of obesity inmales from Tuzla Canton, especially in the older age group. It is therefore necessary in adolescence or even earlier, to start with educationand systematic practice of sports and recreational activities with respect to dietary habits.KEY WORDS: Body Mass Index; Fat Tissue; Unemployed Men.

<p>Importance of physical education and its placment in the educational system are known for a<br />long period of time. Many resreaches have been conducted in order to determine the extent to<br />which physical education positively influences students. Results of some studies show that<br />physical education classes are unsatisfactory and inappropriate, given the circumstances- age<br />and individual skills of students, their needs and interests (Arunovic, 1978; Visnjic, 1983;<br />Krsmanovic, 1988, 1995). Main reasons for ineficinet physical education classes can be found<br />in the bad concept of modelling teaching syllabuses and small number of physical education<br />classes per week (Krsmanovic, 1995). The aim of the study is determining differences<br />between examinees in terms of motor skills, depending on material and technical conditions<br />as well as method of class organisation that is realization of the curriculum. The participants<br />in the study were 142 adolescents, 17 years of age (&plusmn; 6 months ). In order to assess motor<br />skills 12 motor tests were used. Data processing was done by applying multivariate analysis<br />of covariance (MANCOVA), significance of difference was determined by analysis of<br />variance (ANOVA), while differences among examinees of the experimental and the control<br />group were determined by discriminant analysis. After the experimental treatment, it was<br />determined that there was statistically significant difference between the experimental and the<br />control group within the motor skills system.&nbsp;</p>

Background: This study was carried out among undergraduate students at the University of Tuzla (Bosna and Herzegovina) with the objective of examining gender differences in the body mass index (BMI) and the level of Physical Activity (PA) among respondents. Material/Methods: This study was conducted to: determine the body mass index (BMI) and the average weekly number of hours of sport activity in the last six months (PA). A research sample was made of female students (n=330) in the chronological age of 19.3+1.5 yrs, 60.7%, and of male students (n=213) in the chronological age of 20.0+1.8 yrs, 39.2%. Results: On average, the students (both female and male) spend 5.60 (5.03) hours on physical activity per week. Female students spend 4.05 (4.32) hours, while male students dedicate 8.11 (5.30) hours to physical activities. It can be concluded that in principle the students practice physical activities and recreation, but still 1/5 of all students are inactive. The obtained results for the BMI show that the majority of students are in the zone of normal values: female – 278 (84.2%); male – 157 (73.7%). Correlations between BMI and PA amount to (R=.214; p<0.01) and (R 2 =.046; p<0.01). The results of the T-test show a more significant statistical variable of differences between female and male students at the level of p<0.05. In comparison to female students, male students have 2.35 kg/m 2 higher BMI, and they are more active in physical activities for 4.06 hours in comparison to women. Conclusions: The focus should be directed to the education of young people, because they can easily adopt healthy habits that should be maintained for life. These results point out the necessity of an integrated approach to prevention and control of risk factors, particularly among youth.

Abstract We attempted to establish which applied kinematic variables significantly contributed to the efficiency of the instep kick motion in soccer. The study sample comprised 13 boys (age: 13 ± 0.5 yrs; body mass: 41.50 ± 8.40 kg; body height: 151.46 ± 5.93 cm) from the FC Sloboda school of soccer. Each participant performed three kicks with maximum strength that were video recorded with two synchronized cameras (Casio Ex-F1) positioned 12 m away from the place of the kick. Data were collected by analyzing the video recordings of each kick. Data processing was performed using the APAS motion analysis system (Ariel Dynamics Inc., San Diego, CA). On the basis of the forward selection method of multiple regression analysis, we determined the correlations between the prediction variables and the selected criteria (speed of the ball; p = 0.01). On the basis of the regression coefficients, it was concluded that two variables significantly contributed to the speed of the ball: speed of the foot of the kicking leg at the time of contact with the ball (p = 0.01) and the distance between the angle support leg and center of the ball (“foot posterior displacement”) (p = 0.01). In order to achieve the best possible technical performance and, therefore, a higher speed of the ball, soccer players must pay attention to two important elements during training. First, it is necessary to position the support leg as close to the ball as possible and, second, maximize the force used in the initial phases of the kick to achieve a high speed of the kicking foot