## 3 Results  
### Gait Analysis with Mobile Device (Rehaguit) and Dynamometric Treadmill Analysis  
LopD patients showed gait abnormalities in cadence (75%), velocity (69%) and percentage of time in double limb support (56%) compared to the matched references (Tables 2 and 3). \begin{table}
\begin{tabular}{c c c c c c c c c c c c c c c c c} \hline \hline
**Subject ID** & **13** & **10** & **8** & **11** & **6** & **7** & **2** & **3** & **1** & **16** & **15** & **5** & **9** & **14** & **4** & **12** \\ \hline  & & \multicolumn{8}{c}{**Mobile gait parameters using RehaGait**} & & & & & & & & & & & & & \\ Stride length (m) & - & - & - & - & - & - & - & - & - & - & X & - & - & - & X & X & X \\ Walking speed (m/s) & - & - & - & - & X & - & - & - & - & X & X & X & X & X & X & X & X \\ Cadence (steps/min) & - & - & X & X & X & - & - & - & X & X & X & - & - & X & X & X & X \\ Stance (\%) & - & - & - & - & - & - & X & - & - & X & - & X & - & X & - & X & X \\ Single support (\%) & - & - & - & - & - & - & - & - & X & X & - & X & - & X & X & X \\ Double support (\%) & - & - & - & - & - & - & - & - & X & - & X & X & - & X & - & X & - \\ Maximum foot high (m) & - & - & - & - & - & - & - & - & - & - & - & - & - & - & - & - & - & X \\ \hline  & & \multicolumn{8}{c}{**Teadmill gait parameters using FDM-T system**} & & & & & & & & & & & & & & & \\ Foot rotation (\%) & X & X & X & X & \(\times\) & - & - & X & \(\times\) & X & \(\times\) & X & NA & - & - & NA & X \\ Step width (m) & - & X & X & - & - & - & X & \(\times\) & - & - & - & X & NA & - & - & NA & - \\ Initial stance (\%) & - & X & X & X & X & \(\times\) & - & - & - & - & NA & X & - & NA & X \\ Mid stance (\%) & X & X & X & - & X & X & \(\times\) & - & - & - & NA & - & NA & - & NA & X \\ Terminal stance (\%) & X & X & X & - & - & X & X & \(\times\) & - & - & NA & - & NA & - & NA & - \\ Lateral displacement of Gait line (m) & X & - & - & - & - & X & X & X & \(\times\) & X & \(\times\) & NA & X & NA & - \\ \hline  & & \multicolumn{8}{c}{**Clinical data**} & & & & & & & & & & & & & & & \\ Muscle strength hip & - & X & X & X & X & X & X & X & - & X & X & X & X & X & X & X \\ Muscle strength knee & - & - & X & X & X & X & \(\times\) & X & X & \(\times\) & X & X & X & X & - & X \\ Muscle strength ankle & - & - & - & X & X & \(\times\) & - & - & - & - & - & - & - & - & - & - \\ Polyneuropathy & - & - & - & - & - & - & - & - & - & - & - & - & - & - & - \\ \(\delta\)MVT (m) & 800 & 590 & 470 & 445 & 420 & 370 & 323 & 318 & 315 & 265 & 254 & 200 & 125 & 114 & 105 & NA \\ Time 10-m fast walk (s) & 5 & 5.3 & 6.2 & 6.7 & 9.6 & 10.6 & 9.4 & 12 & 12.7 & 24 & 17 & 12.7 & 17.4 & 29 & 28 & 25 \\ \hline \multicolumn{10}{l}{: indicates normal results (inside the reference range of matched controls). X indicates abnormal results (outside the reference range of matched controls). Gray highlight indicates results superior to those of references. Abnormal muscle force values were defined as any result \(<\) 5 according to MRC grading for a single measurement. \(\delta\)MVT–6-min walking test. NA—not available because patients were not able to perform the test.} \\ \end{tabular}
\end{table} 
Table 3: Gait analysis and clinical parameters of LOPD patients. Maximum foot height was reduced in 6% of LOPD patients, stride length in 25% and step widths in 36% (Table 3). Foot rotation and lateral displacement were conspicuous in 71% of the patients. In most patients (71%), pressure distribution across the heel, midfoot and forefoot regions were outside the inter-percentile range in one or more items (Tables 2 and 3). There was a moderate relationship between overall hip muscle strength and the percentage of single limb support during the gait cycle (r\({}_{\text{RehaGait}}\) = 0.525, \(p\) = 0.037). Step widths showed a moderate correlation with strength of hip muscles (r\({}_{\text{readmill}}\) = \(-\)0.579, \(p\) = 0.030) and total strength of the lower limbs (r = \(-\)0.613, \(p\) = 0.020).