The aim of the paper was to determine if there has been height variability between generations. Following the instructions of IBP, an anthropological investigation was conducted in 2001. in the same place as in 1975. The results have shown that the average height of males in 1975 equaled 168cm and in 2001 it was I 75.3cm. During the period of 25 years the increase in height was 6.7cm (t=5.38**). As for females (in 1975 156.16cm and in 2001 160.87cm) the difference is smaller, but also statistically significant (4.71cm). The change in height between generations of Slovaks living in Kisac is greater than in most European countries (Tanner 1988), where it equals 1cm per decade. or 2.5cm per generation. The analysis of height in relation to categories shows that two generations of subjects have different height distributions. The present generations of males and females (50% and 46.15% respectively) are taller. The results obtained 25 years ago referring to the same category show that the number of males was twice smaller.
