Using the sample group of male respondents (161) aged 15 (± 6 months), spinal posture in the sagittal plane was evaluated, while some basic anthropometric measures were gathered. Posture was evaluated using a modified method by Napoleon Wolanski (Radisavljević, 2001), by means of which the data were retrieved regarding spine (kyphotic and lordotic posture, kyphosis-lordosis and flat-back syndrome). The aim of the research is to diagnose postural disorders in adolescents and establish differences among the groups of the respondents grouped according to their morphological characteristics. The frequency of occurrence in postural disorders was calcuated by means of a nonparametric statistical procedure of frequency. Factor analysis was used in order to single out two factors based on which the whole sample was further divided into two groups using cluster analysis. The data thus obtained imply the presence of postural disorders at this age, while the analyses of the differences show no statistically significant differences.
