Nutritional status and puberty in girls
This study aims to find relationships between nutritional status, leptin and puberty. Methods. The research covered 66 healthy girls aged 9.8 ± 0.6 years, in prepubertal period. Body height, weight, arm circumference and skinfolds were measured, and serum leptin concentration was estimated. The evaluation of the pubertal stage and anthropometrical measurements was carried out again in a year's period. Results. During the observation, 32 girls reached the time of puberty (group I), while the other 34, at the same age, were still at prepubertal stage (group II). The girls in group II were shorter, lighter, had lower arm circumference, thinner skin fold on abdomen (p<0.02) and lower serum leptin concentration (p<0.003). Highly positive correlations between BMI, skin folds thickness and leptin concentration were proved. Conclusion. The results indicate relationships between the fat tissue amount, blood leptin concentration and puberty in girls.