\begin{table}[h!]
  \begin{center}
    \begin{tabular}{| l c r |}
    \hline
    SCI & Spinal Cord Injury & 3 \\
    4 & 5 & 6 \\
    7 & 8 & 9 \\
    \hline
    \end{tabular}
  \end{center}
  \caption{Sources of Workload}
\end{table}