This study examined the effect of two different follow-ups of a plyometric program on improving speed and explosive strength. Thus, the purpose of this study is to identify the 12-week effect of the plyometric program on the development of speed and explosive strength in adolescents. The research was conducted on a sample of 195 male adolescent participants aged 15 years ± 6 months, who were divided into two groups, the first group of the plyometric group (PG) 90 adolescents s participated in plyometric training sessions three times a week for 12 weeks, while the control group (CG) 105 adolescents only attended their regular lessons in Physical Education. Tests of study: sprint (S) 30 m speed; S80 m speed; S100 m speed; Standing long jump; Standing triple jump; Vertical Jump. The results presented between the measurement pre- and post-plyometric program in the group (PG) have resulted in favor of this group over the control group (CG), and it has also been identified that there are significant differences in the indicators of speed and explosive strength at the level (p < 0.05). In conclusion, a 12-week plyometric program has shown significant increases in speed and explosive strength indicators in teenagers, and the same model can be used in elite athletes.

The paper was effects of the 4 week plyometric training program on explosive strength and agility for basketball players. Totally 20 basketball players were volunteered for the study (age = 15 years +/- 6 months). They were divided to 2 groups: the control group (CG, n = 10; height = 171.930 cm, weight = 70.840 kg, BMI = 20.563), the experimental-plyometric group (EG, n = 10; height = 173.090 cm, weight = 64.300 kg, BMI = 19.068). The tests are twelve (13) variables of them, 3 from anthropometric and 10 motor tests. According to the results of the CG, significant small differences are presented in two tests, such as 20m running (sprint) testing with significant differences (p= 0.013), and abdominal muscle testing with significant differences (p= 0.036). However, in the PG, significant differences in four tests, the jump from place to length with significant differences (p= 0.003), the high jump with the approach of one foot significant differences (p= 0.035), push-ups (pump) test with significant difference (p= 0.004), Illinois Agility test with significant difference (p= 0.004). Through which it was possible to conclude that the effects of the experimental-plyometric training program of the game basketball indicators.

Objectives: The main purpose of this study is to identify the relative effect of age (RAE) according to norm values on the anthropometric performance and physical fitness of children between the ages of 9 and 11 years. The data, namely the percentiles of anthropometric parameters and physical fitness, are relevant for identifying the RAE in relation to gender and the month of birth in children. Methods: For the sample in this study, 1185 young people from Kosovo were enrolled, including 626 males and 559 females aged 9–11 years. The gathered data were assessed via the EUROFIT methodology, which takes into account comparisons based on the quartile of birth and the relative age effect (RAE). Results: The results of the data show us that there are significant differences in the RAE among children born in Q2 at the age of 9 years, especially in boys, as well as significant differences in the height variable at the <0.005 significance level. Others factors did not show significant differences, for example, variables that are indicators of physical fitness. For both boys and girls born in Q1, significant differences were mainly found in the indicators of explosive strength, flexibility, static strength, speed, and agility, with a level of significance of p < 0.001, while other indicators did not show significant differences. In addition, there was a significant difference the ratio between genders at the p < 0.001 and p < 0.005 levels, mainly among those born in Q1 and Q2. Similarly, at 10 years of age, children who were born earlier in the year had better scores, although the large disparities were more noticeable between quartiles than between genders, where the significant differences were mainly in the indicators of explosive strength, speed, and strength at the p < 0.001 level, as well as static strength, agility, and speed at the p < 0.005 level. Significant differences were also found for the indicators in terms of gender. At the age of 11, significant percentiles were mainly found in the quartiles at the beginning of the year for both boys and girls, and significant differences were also found at the p < 0.001 level for RAE between quartiles and gender. Conclusions: By using these data, it will be possible to highlight how males, who have demonstrated notable advantages in anthropometric and physical fitness measures, as well as those born in the first few months of the year, exhibit a relative age effect (RAE) in accordance with gender norm values.

Study purpose. This paper is about the differences in anthropometric characteristics between elite and non-elite youth football players in the Republic of Kosovo. Therefore, our current study aims to compare the differences in anthropometric characteristics between elite and non-elite youth players. The test was conducted with 132 young football players aged 14±0.5 years. Materials and methods. The sample was divided into two groups, namely 66 young players playing in the elite league and 66 young players playing in the non-elite league. The sample of variables consisted of 10 anthropometric measurements. The results of the measurements were analyzed using statistical procedures characterized by descriptive parameters and analysis of variance (ANOVA). Results. The results show that the elite league players have higher values in height and body mass compared to the non-elite league players. It should be noted that the length of the left leg is also higher in the elite league players, while the waist circumference is higher in the non-elite league players. As for knee diameter, the values are identical in both groups. Subcutaneous adipose tissue is more pronounced in the non-elite group than in the elite league players. According to the analysis of variance (ANOVA), significant differences were presented only in the three variables such as the subcutaneous adipose tissue of the back, triceps and suprailiac between the elite and non-elite groups at the level (p<0.05), while no differences were presented in other variables. That is, between the elite and non-elite groups. Conclusions. In summary, the elite league players had better values in the anthropometric characteristics compared to the non-elite league players.

This paper aimed to investigate the morphological characteristics according to the positions of basketball players. In this work, a sample of 62 basketball players aged 16-17 years, whose body height was 177.31 ± 8.112 cm, while body mass of 72.44 ± 13.27 kg, were divided into five main positions of the basketball game: Organizer of the game (n=13), shooting guard (n=14), small forward (n=14), power forward(n=11) and center (n=10). Tested are from the clubs RTV-21, ProBasket-Pristina, M - Junior from Pristina of the male gender who are following the training program from Basketball. In this research, morphological space variables were applied (n=10). Based on the obtained results, very few significant values were presented in the morphological characteristics between the group of outside players (organizer of the game, small forward and power forward) who covered the 6.75-meter line. However, the group of interior players (power forward and centers) under the basket showed significant values in all morphological variables. In the end, it can be concluded that the results of this research will be able to contribute to a better definition of the morphological characteristics between the groups defined according to the players' positions.

The aim of the paper was to analyze the correlation of subcutaneous fat tissue variables with motor ability for women aged 11+ +/- 6 months. In a sample (n = 60) of the sixth grade (VI) of the Prishtina municipality, all attend the Physical Education (PE) curriculum. In this paper-experiment 12 variables were applied, 6 of which are morphological characteristics and 6 motor tests. All subjects are of female gender, of the lower secondary schools "Elen Gjika" and "Pjetër Bogdani" from the municipality of Prishtina. Correlative ratios between morphological characteristics and motor ability are relatively low. Also in these two dimensions treated, it is worth mentioning the negative correlative ratio between subcutaneous far variables with motor tests. Based on the results obtained in this experiment as well as the morphological changes of motor skills of this age, the changes in the locomotor system have not yet been developed, and any assignment given to these children presents the difficulty of carrying out a motor duty.