Sub Articulo 57.1

Perhaps the best thing would be to redefine the titlepage environment.
create a stylefile (mytpage.sty) with 
  \renewenvironment{titlepage}{
    \newpage\vspace*{\fill}}{\vspace*{\fill}\newpage}
  \newenvironment{forword}{\titlepage
    \section*{Forword}
    \addcontentsline{toc}{chapter}{Forword}}{\endtitlepage}
Then start your document with
\documentclass{report}
\usepackage{mytpage}
\begin{document}
\pagenumbering{roman}
\begin{abstract}
\addcontentsline{toc}{chapter}{Abstract}
....
\end{abstract}
\begin{forword}...\end{forword}
\tableofcontents
\clearpage
\pagenumbering{arabic}