## 3 Results  
Table 3 shows the evolution of the results obtained after carrying out the rowing-based training protocol taking into account the measurements in both groups. There was a significant improvement in the mean values for cardiac variables, blood pressure and cardiorespiratory capacity after the intervention program.  
\begin{table}
\begin{tabular}{l c c c c c} \hline  & **Pre-Test (SD)** & **Post-Test (SD)** & \(\Delta_{\text{pre-post}}\) (SD) & **Student’s \(t\)** & **Effect Size** & \(p\) \\ \hline Rest HR (bpm) & 94.33 (11.81) & 84.78 (11.27) & \(-9.55\) (7.29) & 8.275 & 1.154 & 0.000 ** \\ Initial Test HR (bpm) & 92.83 (12.76) & 81.85/11.35) & \(-10.97\) (7.59) & 9.145 & 1.2 & 0.000 ** \\ Final Test HR (bpm) & 139.5 (18.44) & 122.4 (19.17) & \(-17.1\) (15.69) & 6.891 & 2.481 & 0.000 ** \\ Diastolic BP (mmHg) & 160.03 (13.37) & 144.23 (18.6) & \(-15.8\) (16.36) & 6.109 & 2.587 & 0.000 ** \\ Systolic BP (mmHg) & 100.78 (10.19) & 85.8 (9.8) & \(-14.97\) (10.86) & 8.716 & 1.718 & 0.000 ** \\
6 MWT (m) & 784.78 (103.64) & 863.13 (108.75) & \(+78.35\) (62.57) & \(-7.92\) & 9.893 & 0.000 ** \\ \hline \end{tabular}
\begin{tabular}{l c c c c c} \hline  & **Bpm = beats per minute; mmHg = millimetres of mercury; SD = standard deviation; MS = mean square. ** \(p<0.001\).** \\ \hline \end{tabular}
\end{table}
Table 3: Within-subject analysis of the study variables after the intervention program.  
If we look at the differences obtained according to the type of vessel used in the training program (Table 4), we see that both the subjects who performed FSR and those who performed SSR significantly improved all the parameters related to cardiac function and cardiorespiratory capacity. Furthermore, in the SSR group, better results were obtained after the intervention protocol in all the variables of the study compared to the FSR group (Initial HR, Final HR, Diastolic BP, Systolic BP and the 6-min walk test [6 MWT]), except in Rest HR, which also shows a positive evolution.  
An in-depth analysis of the results is shown in Figure 3, considering the type of boat used in the training protocol and the evolution of the variables associated with cardiac function at rest, before starting the 6 MWT and at the end of the test. Both groups had significant improvements in resting heart rate (FSR: \(\Delta_{\text{pre-post}}\) Rest HR \(=-10.65\); \(p=0.000\); SSR: \(\Delta_{\text{pre-post}}\) Rest HR \(=-8.45\); \(p=0.000\)), initial rate before the test (FSR: \(\Delta_{\text{pre-post}}\) Initial HR \(=-10.7\); \(p=0.000\); SSR: \(\Delta_{\text{pre-post}}\) Initial HR \(=-11.25\); \(p=0.000\)) and final rate after the test (FSR: \(\Delta_{\text{pre-post}}\) Final HR \(=-13.85\); \(p=0.000\); SSR: \(\Delta_{\text{pre-post}}\) Final HR \(=-20.35\); \(p=0.000\)).  
Figure 4 provides the blood pressure measurements obtained before and after the 6 MWT. Both the FSR and SSR groups showed significant improvements in systolic (FSR: \(\Delta_{\text{pre-post}}\) Systolic BP \(=-13\); \(p=0.000\); SSR: \(\Delta_{\text{pre-post}}\) Systolic BP \(=-16.25\); \(p=0.000\)) and diastolic (FSR: \(\Delta_{\text{pre-post}}\) Diastolic BP \(=-12.35\); \(p=0.000\); SSR: \(\Delta_{\text{pre-post}}\) Diastolic BP \(=-19.  
\(p\) = 0.000) blood pressure, although these improvements were slightly greater in the women who rowed in the SSR group.