## 4 Discussion  
The main objectives of this study were to (a) identify the influence of postural stability and core function modification on BLD, and (b) compare the assessment of strength generated during elbow flexion functionally vs. analytically and D vs. ND. Based on these findings, the main results of this study were that (a) greater BLD occurs in movements performed while seated compared with gestures performed while standing. Furthermore, it has been shown that (b) the change from standing to seated does not modify the mean and peak force production during isometric elbow flexion. In contrast, dominance did affect \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline  & **Variable** & **D** & **ND** & **D + ND** & **B** & **Repeated Measures ANOVA** \\ \hline \multirow{4}{*}{Mean force (kg)} & SiP & 20.08 (4.15) & 19.59 (4.59) & 39.67 (8.61) & 35.77 (8.81) & \begin{tabular}{c} Position \\ F = 2.030; \(p=0.171\); \(\omega^{2}=0.003\) \\ Dominance \\ \end{tabular} \\ \cline{2-6}  & StP & 19.01 (4.10) & 19.08 (3.58) & 38.08 (7.46) & 35.42 (7.74) & \begin{tabular}{c} \(\mathrm{F}=342.890\); \(p<0.001\); \(\omega^{2}=0.673\) \\ Position*Dominance \\ F = 1.397; \(p=0.260\); \(\omega^{2}=0.001\) \\ \end{tabular} \\ \hline \multirow{4}{*}{Peak force (kg)} & SiP & 21.63 (4.39) & 20.99 (4.76) & 42.61 (9.02) & 38.23 (9.42) & \
\begin{tabular}{c} Position \\ F = 0.263; \(p=0.614\); \(\omega^{2}=0.000\) \\ Dominance \\ \end{tabular} \\ \cline{1-1} \cline{2-6}  & StP & 20.76 (4.15) & 20.85 (4.00) & 41.60 (7.97) & 38.93 (7.86) &
\begin{tabular}{c} \(\mathrm{F}=361.910\); \(\
u^{2}=0.638\) \\ Position*Dominance \\ F = 4.170; \(p=0.02\); \(\omega^{2}=0.002\) \\ \end{tabular} \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Comparison of the strength generated by comparing different variables for isometric elbow flexion. mean and peak force, and position together with dominance (i.e., Position*Dominance) only affected peak force. The results obtained in this study (mean force \(\mathrm{BLD}=-10.2\%\) and peak force \(\mathrm{BLD}=-10.8\%\)) agree with those published by [PERSON] et al. (2006) (\(\mathrm{BLD}=-10.2\%\)). In this study, as in the present study, isometric elbow flexion at 100% maximal strength was executed on a Scott bench with a 90\({}^{\circ}\) angulation. This \(\mathrm{BLD}\) is caused by decreased motor unit recruitment during BL movement, inhibition of neural circuitry [3], and decreased activation of the D limb [15; 17; 18]. Regarding the results obtained in \(\mathrm{BLD}\) produced in \(\mathrm{StP}\), no previous studies employ a methodology similar to that used in this study. In general, \(\mathrm{BLD}\) produced in different movements and muscle groups (i.e., lower limbs vs. upper limbs/squat vs. hand grip) are usually compared. There is a theory that postural or joint stability may influence \(\mathrm{BLD}\) expression [11; 31]. Specifically, this theory indicates that greater \(\mathrm{BLD}\) occurs in multi-joint movements than in mono-joint gestures. This is largely due to postural stability and core activity. When comparing the \(\mathrm{BLD}\) produced in the present study for the same gesture but in different positions (i.e., seated vs. standing), we found that, contrary to what was described above, the movement that involves larger body structures (standing) and requires greater postural stability and core activation [32] has a lower \(\mathrm{BLD}\) than the movement performed in a more analytical manner (seated). Therefore, caution should be exercised when interpreting force assessments and conclusions, as it is very difficult to accurately compare methodologies, measurement instruments, force application angles, rest duration, and variables that may influence the manifestation of such forces [1; 21]. When comparing force production during movement, changes in position from \(\mathrm{SiP}\) to \(\mathrm{StP}\) did not modify mean force production or peak isometric elbow flexion. In contrast, dominance affects mean and peak forces, whereas Position*Dominance only affects peak forces.