## 4 Discussion
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Variable**} & \multirow{2}{*}{**Condition**} & \multirow{2}{*}{**Median**} & \multirow{2}{*}{**IQR**} & \multirow{2}{*}{**Friedman Test**} & \multirow{2}{*}{**Post Hoc Wilcoxon Test**} \\ \cline{4-5}  & & & & & **x2 Value (df);** & \\  & & & & \(p\)**-Value** & & \\ \hline \multirow{5}{*}{\begin{tabular}{c} Subjective \\ Perception of \\ Effort \\ \end{tabular} } & Control & 0.00 & 0.00 & & Control vs. 220 mL = 3.169 (0.002 **) \\  & 220 mL & 0.00 & 1.00 & 57.039 (3); & Control vs. 315 mL = 4.457 (<0.001 ***) \\  & 315 mL & 1.00 & 1.00 & \textless{}0.001 *** & 220 mL vs. 315 mL = 2.982 (0.003 **) \\  & 365 mL & 1.00 & 2.00 & & 220 mL vs. 365 mL = 4.363 (<0.001 ***) \\ \hline \multirow{5}{*}{\begin{tabular}{c} Subjective \\ Perception of \\ Comfort \\ \end{tabular} } & Control & 0.00 & 0.00 & & Control vs. 220 mL = 2.828 (0.005 *) \\  & 220 mL & 0.00 & 1.00 & 55.652 (3); & Control vs. 315 mL = 3.879 (<0.001 ***) \\  & 315 mL & 1.00 & 1.00 & \textless{}0.001 *** & 220 mL vs. 315 mL = 3.464 (<0.001 ***) \\  & 365 mL & 1.00 & 0.00 & & 220 mL vs. 365 mL = 4.260 (<0.001 ***) \\ \hline \multirow{5}{*}{\
\begin{tabular}{c} Subjective \\ Perception of \\ Comfort \\ \end{tabular} } & Control & 0.00 & 0.00 & & Control vs. 315 mL = 4.686 (<0.001 ***) \\  & 220 mL & 1.00 & 1.00 & 75.709 (3); & Control vs. 365 mL = 5.107 (<0.001 ***) \\  & 315 mL & 1.00 & 1.00 & \textless{}0.001 *** & 220 mL vs. 315 mL = 3.038 (0.002 **) \\  & 365 mL & 2.00 & 2.00 & 220 mL vs. 365 mL = 4.652 (<0.001 ***) \\ \hline \multirow{5}{*}{
\begin{tabular}{c} Subjective \\ Perception of \\ Implant Weight \\ \end{tabular} } & \multicolumn{3}{c}{mL, milliliters. For each categorical variable, a number from 1 to 6 was assigned. For comfort subjective perception: (1) “very comfortable”, (2) “comfortable”, (3) “slightly uncomfortable”, (4) “uncomfortable”, (5) “moderately uncomfortable”, and (6) “extremely uncomfortable”. For effort subjective perception: (1) “efortless”, (2) “very light”, (3) “light effort”, (4) “a little intense effort”, (5) “intense effort”, and (6) “very intense effort”. For implant weight: (1) “very light”, (2) “light”, (3) “a little heavy”, (4) “heavy”, (5) “moderately heavy”, and (6) “very heavy”. * \(p\)-value \(<0.05\), “\(p\)-value \(<0.01\), “\(p\)-value \(<0.001\). \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Median, interquartile range (IQR) of subjective perception of effort, comfort, and implant weight. Statistics from the Friedman test and Wilcoxon test post hoc comparisons (with Bonferroni correction) between implant conditions are included. In terms of MV, this study showed some variability, with a high standard deviation of 259.18 from a mean of 270.46 milliliters. The diversity of MV in this study makes it representative of the general young adult population and reflects results for a wider range of breast sizes. Future stratification of MV, with a larger sample size, may be helpful to fully understand the impact of implants in different breast sizes on women's bodies. Relative to the kinematic and electromyographic results, significant differences were observed, primarily in the electromyographic data, with most variations occurring in the LS, UT, and LT muscles under different implant conditions. Spinal angles and CoP measurements did not show significant differences between implant conditions in any tests, indicating that vertebral postural orientation and postural stability remained consistent as the additional weight was imposed. This suggests that the weight was neutral and did not seem to interfere with the natural biomechanics of the spine and have a noticeable impact on stability during the additional anterior load. These results are consistent with the findings of [PERSON] et al. (2015), who concluded that spinal curvature and CoP in the standing position were only affected by implants weighing more than 400 g, with an increase in physiological lordosis and worsening stability in a short-term analysis (24 h of implant use) [20].