# Novel Methods of AI-Based Gait Analysis in Post-Stroke Patients
## 3 Results
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline  & **Velocity** & **Cadence** & \begin{tabular}{c} **Stride** \\ **Length** \\ \end{tabular} & \begin{tabular}{c} **Normalized** \\ **Velocity** \\ \end{tabular} & \begin{tabular}{c} **Normalized** \\ **Cadence** \\ \end{tabular} & \begin{tabular}{c} **Normalized** \\ **Stride Length** \\ \end{tabular} & \
\begin{tabular}{c} **Fractal** \\ **Dimension** \\ \end{tabular} &
\begin{tabular}{c} **Fuzzy** \\ **Parameter** \\ \end{tabular} \\ \hline \hline \multirow{2}{*}{Velocity} & \multirow{2}{*}{\(-\)} & 0.656 & 0.672 & 0.942 & 0.746 & 0.659 & \(-\)0.476 & 0.423 \\  & \(p\) = 0.001 & \(p\) = 0.003 & \(p\) = 0.012 & \(p\) = 0.014 & \(p\) = 0.015 & 0.012 & 0.015 \\ \hline \multirow{2}{*}{Cadence} & \multirow{2}{*}{\(-\)} & 0.634 & 0.816 & 0.945 & \multirow{2}{*}{n.s.} & \(-\)0.561 & 0.645 \\  & & \(p\) = 0.005 & \(p\) = 0.007 & \(p\) = 0.041 & & \(p\) = 0.001 & \(p\) = 0.012 \\ \hline \multirow{2}{*}{Stride length} & \multirow{2}{*}{\(-\)} & 0.689 & 0.366 & 0.412 & \(-\)0.614 & 0.613 \\  & & \(p\) = 0.006 & \(p\) = 0.022 & \(p\) = 0.011 & \(p\) = 0.003 & \(p\) = 0.011 \\ \hline \multirow{2}{*}{Normalized} & \multirow{2}{*}{} & \multirow{2}{*}{\(-\)} & 0.734 & 0.618 & \(-\)0.338 & 0.367 \\  & & & \(p\) = 0.004 & \(p\) = 0.017 & \(p\) = 0.002 & \(p\) = 0.008 \\ \hline \multirow{2}{*}{Normalized} & \multirow{2}{*}{} & \multirow{2}{*}{\(-\)} & 0.523 & \(-\)0.452 & 0.399 \\  & & & & \(p\) = 0.034 & \(p\) = 0.001 & \(p\) = 0.005 \\ \hline \multirow{2}{*}{Normalized} & \multirow{2}{*}{} & \multirow{2}{*}{\(-\)} & 0.523 & \(-\)0.491 & 0.423 \\  & & & & \(p\) = 0.007 & \(p\) = 0.001 \\ \hline \multirow{2}{*}{Fractal} & \multirow{2}{*}{} & \multirow{2}{*}{\(-\)} & 0.478 \\  & & & & \(-\) & \(-\) & \(-\)0.478 \\ \hline \multirow{2}{*}{Fuzzy} & \multirow{2}{*}{\(-\)} & 0.734 & 0.618 & \(-\)0.338 & 0.367 \\  & & & \(p\) = 0.004 & \(p\) = 0.017 & \(p\) = 0.002 & \(p\) = 0.008 \\ \hline \multirow{2}{*}{Normalized} & \multirow{2}{*}{} & \multirow{2}{*}{\(-\)} & 0.523 & \(-\)0.452 & 0.399 \\  & & & & \(p\) = 0.034 & \(p\) = 0.001 & \(p\) = 0.005 \\ \hline \multirow{2}{*}{Normal stride length} & \multirow{2}{*}{} & \multirow{2}{*}{\(-\)} & 0.52 & \(-\)0.491 & 0.423 \\  & & & & \(p\) = 0.007 & \(p\) = 0.001 \\ \hline \multirow{2}{*}{Fractal} & \multirow{2}{*}{} & \multirow{2}{*}{\(-\)} & 0.478 \\  & & & & \(-\) & \(-\) & \(-\)0.478 \\ \hline \multirow{2}{*}{Fuzzy parameter} & \multirow{2}{*}{\(-\)} & 0.734 & 0.618 & \(-\)0.338 & 0.367 \\  & & & \(p\) = 0.004 & \(p\) = 0.017 & \(p\) = 0.002 & \(p\) = 0.008 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Correlations of parameter changes before and after therapy in the study group. \begin{table}
\begin{tabular}{c c c} \hline \hline  & Mean & 0.07 \\ \cline{2-3}  & SD & 0.01 \\ \cline{2-3}  & Min & 0.01 \\ \cline{2-3}  & Q1 & 0.05 \\ \cline{2-3}  & Median & 0.07 \\ \cline{2-3}  & Q3 & 0.13 \\ \cline{2-3}  & Max & 0.29 \\ \hline \multirow{4}{*}{Change in reference group} & Mean & 0.05 \\ \cline{2-3}  & SD & 0.01 \\ \cline{2-3}  & Min & 0.01 \\ \cline{2-3}  & Q1 & 0.03 \\ \cline{2-3}  & Median & 0.05 \\ \cline{2-3}  & Q3 & 0.09 \\ \cline{2-3}  & Max & 0.40 \\ \hline Distribution & & \multicolumn{2}{c}{Not normal} \\ \hline \(p\) & & \multicolumn{2}{c}{0.021} \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Comparisons of changes in fuzzy parameters before and after therapy in the study and reference groups. In the control group, high and very high correlations were observed between changes in the studied spatial-temporal gait parameters (with the exception of a statistically insignificant association between change in pace and change in normalized gait cycle), and moderate to high correlations were observed between the fractal dimension, fuzzy parameter, and spatial-temporal gait parameters.