Desenvolvimento sexual e maturação puberal / Sexual and puberal development

Os fenômenos do desenvolvimento sexual e puberal são eventos progressivos e coordenados. Dependem de fatores cromossômicos - gênicos, gonadais e hormonais. Tais eventos nos indivíduos do sexo masculino e feminino, sendo sincrônicos, permitirão um conveniente desenvolvimento sexual e puberal. Analisar tais fenômenos é o propósito deste estudo.(AU)

The sexual and puberal modifications are coordinate and progressive during differents life phases. Many factors are involved like genic-chromosomic, gonadal and hormonal. Those events that occurred in males and females are synchronous and to create a perfect development. Our proposal is review those situations.(AU)

Abordagem do pediatra na puberdade precoce (do leite de bruxa ao Tanner V) / Role of the Pediatrician in early puberty (from witch milk to Tanner V)

O autor estuda o desenvolvimento puberal normal, define a puberdade precoce, analisa suas variações epidemiológicas, classificação e doenças envolvidas, quanto ao diagnóstico e tratamento, avaliação pelo pediatra e encaminhamento ao endocrinologista, quando necessário.

Variabilidad del peso, la estatura y el índice de masa corporal según desarrollo puberal y tipo de colegio en adolescentes de Medellín, Colombia / Weight, height and body mass index variability according to both puberal development and to the type of school in adolescents of Medellín, Colombia

Introducción: La ciudad de Medellín carece de investigaciones sobre variaciones del crecimiento según grado de desarrollo puberal y condiciones socioeconómicas en adolescentes. Objetivo: analizar la variabilidad de peso, estatura e índice de masa corporal (IMC) según grado de desarrollo puberal y tipo de colegio en adolescentes de Medellín. Sujetos y métodos: de la investigación "Factores de riesgo cardiovascular de Medellín en 1998-1999", se seleccionaron adolescentes de ambos sexos en estadios II al V de desarrollo puberal según Tanner (genitales externos en hombres y desarrollo mamario en mujeres). Se analizaron los datos de peso, estatura e IMC (kg/m2), según desarrollo puberal y tipo de colegio público o privado. Resultados: los varones de los colegios privados tuvieron un peso (p=0,000), estatura (p=0,001) e IMC (p=0,002) superiores a los de los públicos, sin interacción del desarrollo puberal y tipo de colegio (p>0,05). En las mujeres, el peso y la estatura fueron superiores en las de colegios privados (p=0,000) con interacción entre desarrollo puberal y el tipo de colegio para ambos (p=0,013 y 0,040 respectivamente); el tipo de colegio no influyó sobre el IMC (p=0,347), pero si hubo interacción con el desarrollo puberal (p=0,013), al inicio el IMC fue mayor en las de colegios privados y la situación se invirtió en las de estadio V de desarrollo mamario. Conclusión: el grado de desarrollo puberal influye en el crecimiento de varones y mujeres; sin embargo la magnitud de la diferencia en IMC y los estadios en que ocurren podrían estar relacionados con factores culturales en las mujeres.

Introduction: Studies ofgrowth variation in adolescents according to puberal development and socio-economic conditions is lacking for Medellin city. Aim: to analyze weight, height and body mass index (BMI) variability according to puberal development and type of school in adolescents from Medellin. Subjects and methods: Adolescents ofboth sexes at stages II to V of Tanner puberal development previously involved in the study "Cardiovascular risk factors in Medellin 1998-1999" were selected. Weight, height and BMI (Kg/m2) data were analyzed according to puberal development and type of school (public or private). Results: Males from private schools had weight (p=0.000), height (p=0.001) and BMI (p=0.002) greater than those from public schools, without interaction ofpuberal development and type of school (p>0.05). In females, weight and height were greater in adolescents from private schools (p=0.000) showing an interaction between puberal development and type of school (weight p=0.013; height p=0.040); school type did not influence BMI (p=0.347), although there was interaction with puberal development (p=0.013). In the beginning BMI was greater for private schools women and then the situation became inverted at the end ofpuberal development (Tanner V). Conclusion: puberal development influences both males and females growth. However, the different magnitude on BMI and stages at which they occur could be related to cultural factors in women.