Médicos de la Universidad de Pittsburg señalan que las chicas reducen su nivel de actividad física drásticamente en la transición de la infancia a la juventud, disminuyendo en dos terceras partes hacia la edad de 16 o 17 años.
Investigaron el declive de la actividad física durante la adolescencia en 1.213 chicas de raza negra y en 1.166 blancas, que fueron seguidas desde que tenían 9-10 años hasta los 18-19.
Ambos grupos disminuyeron su actividad física en ese período y su tasa de inactividad se aceleró hacia los 16 años, si bien la reducción fue mayor entre las jóvenes de raza negra que entre las blancas.
En opinión de los autores, "estos hallazgos deben hacer sonar la alarma, dada la actual epidemia de obesidad" que atraviesa Estados Unidos.
Webs Relacionadas
University of Pittsburgh School of Medicine
http://www.dean-med.pitt.edu/
New England Journal of Medicine
http://content.nejm.org/
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