## 5 Testing, Results, and Analysis
### Analysis and Results  
To carry out the analysis and present the results, the data collected from the expert evaluations were divided into two types: quantitative and qualitative. The quantitative results are shown in Table 9, which presents the record of collisions throughout Level 2 of the VR experience, involving the specified elements. In addition, Figures 12 and 13 display the heatmaps generated based on the time spent--recorded every three seconds--by each user within the house during Level 1 and Level 2 of the simulation, respectively. \begin{table}
\begin{tabular}{c c c} \hline \hline  & **Questions** & **Answers** \\ \hline
1 & Do you consider that the visual guides are clear and help you understand & \\  & what to do within the simulation (where to go, how to interact)? & \\
2 & Do you consider that the camera movements were in accordance with the & (1) Strongly Disagree; (2) Disagree; \\  & movement when you turned your head in reality? & (3) Neither Agree nor Disagree; (4) Agree; \\
3 & Do you consider that camera movements could have an impact on a person & (5) Strongly Agree \\  & with a physical disability? & \\ \hline  & How difficult do you think it would be for a person with a physical & \\
4 & disability to use the control devices (VR controllers) to move within the & (1) None; (2) A little; (3) Moderate; \\  & virtual reality environment? & (4) Quite a lot; (5) A lot \\
5 & How difficult do you think it is to learn movement within the simulation? & \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Virtual reality (VR) tool evaluation questionnaire. \begin{table}
\begin{tabular}{c c c} \hline \hline  & **Symptoms** & **Answers** \\ \hline
1 & Nausea & \\
2 & Sweating & \\
3 & Dizziness & \\
4 & Headache & \\
5 & Eye fatigue & (1) No malaise; (2) Mild; \\
6 & Blurred vision & (3) Moderate; (4) Severe; \\
7 & Difficulty concentrating & (5) Heavy \\
8 & Loss of balance & \\
9 & Disorientation & \\
10 & General malaise & \\ \hline \hline \end{tabular}
\end{table} 
Table 8: Questionnaire for symptoms associated with the use of virtual reality (VR). \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Experience Zone** &
\begin{tabular}{c} **Interaction** \\ **Object** \\ \end{tabular} & **Expert \#1** & **Expert \#2** & **Expert \#3** & **Expert \#4** & **Expert \#5** \\ \hline Living–Dining room & Door frame & Yes & No & Yes & Yes & Yes \\  & Walls & Yes & No & Yes & No & No \\  & Furniture & Yes & No & No & No & No \\  & Doors & Yes & No & No & Yes & Yes \\  & Door frame & Yes & Yes & No & No & Yes \\  & Walls & Yes & Yes & Yes & Yes & Yes \\ Kitchen & Furniture & Yes & Yes & Yes & Yes & Yes \\  & Doors & Yes & Yes & No & No & Yes \\  & Door frame & Yes & Yes & Yes & Yes & Yes \\ Bathroom & Walls & Yes & Yes & Yes & Yes & Yes \\  & Furniture & Yes & Yes & Yes & Yes & Yes \\  & Doors & Yes & Yes & Yes & Yes & Yes \\  & Door frame & Yes & Yes & Yes & Yes & No \\ Main bedroom & Walls & Yes & Yes & Yes & Yes & No \\  & Furniture & Yes & Yes & Yes & Yes & No \\  & Doors & Yes & Yes & Yes & Yes & No \\ \hline \hline \end{tabular}
\end{table} 
Table 9: Record of collision time with different elements by zone within the UAH. Figure 12: Heatmaps of movement during testing—Stage 1. (**a**) Floor plan of the house—Stage 1, (**b**) heatmap of Expert #1 in House 1, (**c**) heatmap of Expert #2 in House 1, (**d**) heatmap of Expert #3 in House 1, (**e**) heatmap of Expert #4 in House 1; (**f**) heatmap of Expert #5 in House 1.