Using the sample group of male respondents (161) aged 15 (± 6 months), lower extremities posture 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 lower extremities and feet (genu varum, genu valgum, genu recurvatum, pes planus). The aim of the research is to diagnose postural disorders in adolescents and establish differences among the groups of respondents grouped according to their morphological characteristics. The frequency of occurrence in postural disorders was calculated 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 results thus obtained point at a significant frequency rate of postural disorders at this age, where 39 of the respondents have disorders involving lower extremities, while 63 of the respondents have fallen arches.
