## 3 Results  
Loading the Ground with the Weight of the Object Through the Support Platform from Maximum Forward Tilt to Maximum Backwards Tilt While Maintaining Balance  
The ground loads were measured at the extreme support points \(A\) and \(B\) in seven situations, i.e., from the maximum forward inclination of the object's centre of gravity (\(CoG_{1}\)) through the neutral position to the maximum backwards inclination of the model object while maintaining balance (Table 1) (Figure 4C). The difference in load measurements at the extreme support points at different degrees of inclination was significantly different (\(p\) < 0.05). The load, the pressure of the object's support points (\(W_{A}\), \(W_{B}\)), was the greatest in the situation when the general projection of the centre of gravity (\(CoG_{1}\)) fell on point A or point B. In each intermediate situation, the weight was distributed into two components, \(W_{A}\) and \(W_{B}\) > 0, with their resultant \(W_{I}\), which is their vector sum (Figure 4(ABC1-ABC7)). \(W_{I}\) is the pressure force of the foot on the ground by the weight of the body at the point of projection of the general centre of gravity of the body onto the foot. When the object is gradually tilted forward, \(r_{A}\) shortens and \(r_{B}\) lengthens, while when tilted backwards, \(r_{B}\) shortens and \(r_{A}\) lengthens, which affects the load distribution of point \(A\) and point \(B\) (Figure 4(B1-B7)). From the maximum load of point \(B\) to the maximum load of point \(A\), the load distribution of points \(A\) and \(B\) can be calculated based on the principle of a beam supported at two points. Assuming that all the weight loading the foot is 100%, then depending on the degree of inclination of the centre of gravity (\(CoG_{1}\)), the weight components (\(W_{A}\) and \(W_{B}\)) are distributed at points \(A\) and \(B\) to different degrees (Figure 4(B1-B7,C1-C7)). \begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline \multicolumn{2}{c}{**Weight-Bearing**} & \multicolumn{4}{c}{**Tlat Bar Model (Mean and SD)**} & \multicolumn{4}{c}{**Vector Length**} & \multicolumn{1}{c}{\(\gamma\) [\({}^{\circ}\)]} \\ \hline \(A\) **Point** & \(B\) **Point** & \(W_{A}\) **[kG] (SD)** & \(W_{B}\) **[kG] (SD)** & \(W_{I}\) **[kG] (SD)** & \(W_{A}\) **[cm]** & \(W_{B}\) **[cm]** & \(W_{I}\) **[cm]** & \\ \hline
100\% & 0\% & 2.972 (0.148) & 0 (0) & 2.97 (0.148) & 5 (0.24) & 0 (0) & 5 (0.25) & 0 (0) \\
75\% & 25\% & 2.225 (0.113) & 0.748 (0.037) & 2.27 (0.116) & 3.5 (0.18) & 1.5 (0.07) & 2.6 (0.14) & 42.51 (2.15) \\
50\% & 50\% & 1.502 (0.074) & 1.468 (0.073) & 0.99 (0.051) & 2.5 (0.14) & 2.5 (0.13) & 1.9 (0.11) & 44.66 (2.24) \\
40\% \({}^{*}\) & 60\% \({}^{*}\) & 1.177 (0.059) & 1.79 (0.08) & 2.11 (0.106) & 2.1 (0.11) & 2.9 (0.16) & 2.3 (0.12) & 51.81 (2.59) \\
26\% ** & 74\% ** & 0.78 (0.036) & 2.19 (0.12) & 2.38 (0.119) & 1.5 (0.07) & 3.5 (0.18) & 3.4 (0.18) & 73.73 (3.71) \\
10\% & 90\% & 0.31 (0.015) & 2.66 (0.134) & 2.36 (0.117) & 0.3 (0.02) & 4.7 (0.23) & 4.6 (0.22) & 68.79 (3.45) \\
0\% & 100\% & 0.059 (0.003) & 2.913 (0.145) & 2.97 (0.147) & 0 (0) & 5 (0.24) & 5 (0.24) & 0 (0) \\ \hline \hline \end{tabular}
\end{table} 
Table 1: The mean with standard deviation ground load force through the foot at different positions of the \(CoG_{1}\) projection from maximum forward (100% of \(A\) point weight-bearing) inclination to maximum backwards (100% of \(B\) point weight-bearing) inclination on the support platform. \(A\) Point and \(B\) Point—the extreme points on the support platform, the lengths of the force vectors, and the angle (\(\gamma\)) of inclination of the flat bar. \(W_{A}\)—component of the gravity force loading \(A\) Point, \(W_{B}\)—component of the gravity force loading \(B\) Point and \(W_{I}\)—resultant of the gravity forces \(W_{A}\) and \(W_{B}\), gamma (\(\gamma\)) [\({}^{\circ}\)]—the angle between the vector \(W_{A}\) and \(W_{B}\)’ lying opposite the vector \(W_{I}\) (Figure 1).