## 2 Materials and Methods
### Rehabilitative Program  
The data were collected from patients that were part of a subacute intensive rehabilitative program, lasting about four consecutive weeks in relation to body impairment and dysfunction. It included physiotherapy, speech therapy, occupational therapy, and neuropsychological therapy.  
As part of their rehabilitation program, the patients who were able to walk according to FAC category 1, that is, who required assistance from no more than one person during gait, participated in four weeks of daily 30 min flat training sessions with Lokomat Pro V6. The treadmill speed for all participants was 1.5 km/h with 50% body weight support. The body weight support was provided using a suspended harness available in Lokomat Pro V6 and it was adjusted to support 50% of the patient' body weight. The guidance force parameter was set to 100%. The stiffness, joint torque and range of motion was assessed for each patient at admission and 4 weeks after using the Lokomat tools: L-STIFF, L-FORCE and L-ROM. The measurement protocol is detailed in Section 2.4.  
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**ID 2**} & \multirow{2}{*}{**Sex**} & \multirow{2}{*}{**Age (Yrs. 3)**} & \multirow{2}{*}{\
\begin{tabular}{c} **Days Since** \\ **Stroke** \\ \end{tabular} } & \multicolumn{3}{c}{**FAC 1**} & \multirow{2}{*}{
\begin{tabular}{c} **Etiology and** \\ **At One-Month** \\ **Essemsents (T0)** \\ \end{tabular} } & \multirow{2}{*}{**Clinical Pictures**} \\ \cline{1-2}  & & & & & **At Basal** & & **At One-Month** \\  & & & & & **Follow-Up (T1)** & \\ \hline
1 & M 4 & 43 & 10 & 1 & 4 & \
\begin{tabular}{c} Left temporo insular \\ ischemia \\ \end{tabular} &
\begin{tabular}{c} Right hemiparesis \\ and aphasia \\ \end{tabular} \\ \hline
2 & M & 60 & 13 & 1 & 4 &
\begin{tabular}{c} Right thalamo \\ capsular haemorrhga \\ \end{tabular} & Left hemiparesis \\ \hline
3 & M & 77 & 52 & 1 & 5 &
\begin{tabular}{c} Right thalamo \\ capsular haemorrhga \\ \end{tabular} & Left hemiparesis \\ \hline
4 & M & 63 & 12 & 3 & 6 &
\begin{tabular}{c} Left corona radiata \\ ischemia \\ \end{tabular} & Right hemiparesis \\ \hline
5 & M & 70 & 23 & 1 & 2 &
\begin{tabular}{c} Left corona radiata \\ ischemia \\ \end{tabular} & Right hemiparesis \\ \hline
6 & M & 36 & 47 & 1 & 1 & \
\begin{tabular}{c} Left thalamo capsular \\ haemorrhga \\ \end{tabular} &
\begin{tabular}{c} Right hemiparesis \\ and aphasia \\ \end{tabular} \\ \hline
7 & M & 54 & 51 & 1 & 2 & \
\begin{tabular}{c} Left parieto occipital \\ haemorrhga \\ \end{tabular} &
\begin{tabular}{c} Right hemiparesis \\ and aphasia \\ \end{tabular} \\ \hline
8 & F 5 & 73 & 15 & 1 & 3 &
\begin{tabular}{c} Left parieto occipital \\ haemorrhga \\ \end{tabular} & Right hemiparesis \\ \hline
9 & M & 61 & 60 & 3 & 6 &
\begin{tabular}{c} Left corona radiata \\ ischemia \\ \end{tabular} & Right hemiparesis \\ \hline
10 & F & 67 & 16 & 1 & 3 & \
\begin{tabular}{c} Left corona radiata \\ ischemia \\ \end{tabular} &
\begin{tabular}{c} Right hemiparesis \\ and aphasia \\ \end{tabular} \\ \hline \hline \end{tabular}  
* FAC = functional ambulation classification. 2 ID = Identification number. 3 Yrs. = Years. 4 M = Male. 5 F = Female.  
\end{table}
Table 1: Clinical and demographic of the subjects included in the study.  
In the rehabilitative program the 30 min training sessions were carried out using Lokomat Pro V6 (Hocoma, Volketswil, Switzerland). Lokomat Pro V6 is a driven gait orthosis with transducers and electrical drives in hip and knee joints for automatic locomotion therapy [21]. Using Lokomat Pro V6, the therapist can control the robot via computer while an electronic display is available for the patients. The treadmill of Lokomat Pro V6 works within a speed range from 0 to 10 km/h and it can be adjusted for each patient. Measurement tools are available in Lokomat Pro V6 such as L-STIFF, L-FORCE and L-ROM. The L-STIFF, L-FORCE and L-ROM tools were described in the introduction. Detailed technical data of Lokomat Pro V6 can be obtained in [21].