The aim of this research was to identify somatotype differences between different age categories of young soccer players. In accordance with the aim, a sample of 274 young soccer players was divided into three groups (beginners N1 = 48, pioneers N2 = 111 and cadets N3 = 115). Somatotypes were assessed using the Heath-Carter method. Reliability of the obtained data was satisfactory (technical error of measurement [TEM] range: 1.11-4.11, coefficient of variation [CV] range: 0.03-0.09). A one-way between-subjects ANOVA together with Bonferroni correction revealed significant differences between groups in all somatotype components. The results indicated that the youngest players had a more pronounced endomorphic component (p < 0.05), which decreased with years of training, and the ectomorphic component became most evident in the pioneers, but then decreased again. In addition, with years of training, the mesomorphic component became less pronounced. The observed differences indicated the existence of nonlinear and complex interaction dynamics of somatotype components that are not only under the influence of soccer training but also growth and development. These results can contribute to understanding the interactions and dynamics of somatotype components of different generations of young soccer players. The results also provide relevant information necessary for the precise identification of morphological characteristics of young soccer players, as well as the modelling of the training process aimed at maximizing playing potentials and competitive outcomes.

Introduction/Objective The purpose of this study was to compare two methods of treatment and to evaluate the advantages in the final outcome of transcervical fixation of the femoral head using one cannulated screw in the treatment of slipped capital femoral epiphysis. Methods This study included 65 pediatric patients (35 boys and 30 girls), aged 6-16 years (average 11.86), during a 12-year period (2000-2012). We compared the slipping degree before and after the treatment (Southwick angle), the range of motion before and after treatment, and complication occurrence between two groups of children. The first group of children (26 patients) underwent closed reduction and cast immobilization (Group I). The other group (39 patients) was treated with transcervical fixation using one cannulated screw (Group II). Results Comparing preoperative and postoperative Southwick angle, we found much better improvement in Group II, but without statistical significance between the two groups of patients (p = 0.09). Observing the range of motion of the hips before and after treatment, we found improvement in both groups of patients, especially in patients treated using transcervical fixation with cannulated screw (Group II). In complication occurrence, the patients in Group II had less complication occurrence compared to Group I (p = 0.02). Conclusion The transcervical fixation using one cannulated screw has better clinical outcome and lower complication rate in relation to closed reduction and cast immobilization in the treatment of slipped capital femoral epiphysis.