# XClinic Sensors: Validating Accuracy in Measuring Range of Motion Across Trauma Conditions
## 4 Discussion  
This study aimed to evaluate the psychometric properties of the XClinic sensors developed by Ferrox. The results showed moderate reliability across the measured parameters through item-by-item analysis, while construct validity presented low to moderate values. These findings highlight the need for further studies to explore the validity of these sensors, particularly in populations with injuries. Despite these limitations, the identified correlations offer valuable preliminary insights and serve as a solid basis for future investigations aimed at refining these devices and improving their accuracy. The descriptive results of this research provide important context regarding the nature of road traffic accidents, especially those involving motorcycles ([PERSON] et al., 2012 [11]). The predominance of male patients and the high occurrence of accidents on the road are consistent with international reports that highlight the increased vulnerability of motorcyclists in urban environments [32]. These findings highlight the need for targeted prevention measures and tailored rehabilitation approaches for patients with severe injuries. Statistically significant negative correlations between mean deficits and specific hip movements underscore a consistent relationship between joint restrictions and functional impairment. Greater deficits in the range of motion (ROM) were associated with reduced capability in specific hip movements [33, 34]. The strong association between internal and external rotations on both sides emphasizes the biomechanical interdependence of these movements, likely due to shared muscular and joint dynamics [35]. Interestingly, the significant correlation between left hip abduction and both ipsilateral (adduction and flexion) and contralateral (right hip abduction) movements suggests compensatory mechanisms in bilateral hip function. These dynamics align with the biomechanics of the lower limbs, where limitations on one side influence contralateral functionality. The positive association between left hip extension and ipsilateral flexion and contralateral extension further supports this relationship [36]. However, the lack of similar correlations for right hip extension may suggest that these movements are more isolated or influenced by different factors, warranting further investigation. The negative correlations observed between knee ROM deficits and specific joint movements confirm the expected relationship, as restricted mobility in the knee directly impacts its functional capacity [37]. Similarly, the inverse relationship between ankle deficits and individual movements highlights the fundamental role of ankle ROM in maintaining overall mobility. The observed correlations between right ankle dorsiflexion and left plantar flexion or even suggest adaptive mechanisms that preserve stability and function, even when mobility is compromised on one side [38]. \begin{table}
\begin{tabular}{c c c c c c c} \hline  & \multicolumn{2}{c}{**Anca**} & \multicolumn{2}{c}{**Ginocchio**} & \multicolumn{2}{c}{**Caviglia**} \\ \hline  & **Media** & **Media** & **Media** & **Media** & **Media** & **Media** \\  & **Deficit Sx** & **Deficit Dx** & **Deficit Sx** & **Deficit Dx** & **Deficit Sx** & **Deficit Dx** \\ \hline Total score & \(-0.667\)**\(\ast\) & \(-0.780\)**\(\ast\) & \(-0.259\) & \(-0.366\) & \(-0.360\) & \(-0.273\) \\ \hline \multicolumn{7}{l}{\(\ast\)\(p\)\(<\)0.01.} \\ \end{tabular}
\end{table} 
Table 6: Berg Balance Scale. \begin{table}
\begin{tabular}{c c c c c c c} \hline  & \multicolumn{2}{c}{**Anca**} & \multicolumn{2}{c}{**Ginocchio**} & \multicolumn{2}{c}{**Caviglia**} \\ \hline  & **Media** & **Media** & **Media** & **Media** & **Media** & **Media** \\  & **Deficit Sx** & **Deficit Dx** & **Deficit Sx** & **Deficit Dx** & **Deficit Sx** & **Deficit Dx** \\ \hline Total score & \(0.465\)\(\ast\) & \(0.205\) & \(0.213\) & \(-0.045\) & \(0.198\) & \(0.242\) \\ \hline \multicolumn{7}{l}{\(\ast\)\(p\)\(<\)0.05.} \\ \end{tabular}
\end{table} 
Table 7: Tampa Scale for Kinesiophobia.