Translate the following English sentence to French:
"The federations, in fact, must make an extra effort to achieve internal democratisation and to adapt their structures to the needs of amateur sport on the one hand, and those of professional sport on the other."
Les fédérations doivent en effet faire un effort supplémentaire de démocratisation interne, ainsi que d'adaptation des structures aux exigences du sport amateur d'un côté, et professionnel de l'autre.