## 3 Results  
A total of 130 patients who were hospitalized with community-acquired pneumonia (CAP) were initially assessed for eligibility to participate in this study. Out of the 130 patients, 40 were excluded from the analysis for various reasons. Specifically, 13 patients declined to participate in the study, and 27 others did not meet the inclusion criteria due to certain factors, such as having cognitive impairments or presenting comorbidities that could potentially interfere with the accuracy or reliability of the patient's assessment and evaluation. After applying these exclusion criteria, a final total of 90 patients were included in the study and were subsequently divided into two distinct groups based on their level of physical activity. Among the 90 included participants, 44 CAP patients were categorized into the active group, while the remaining 46 patients were assigned to the sedentary group. Notably, there were no drop-outs or withdrawals from the study at either the time of hospital discharge or during the follow-up period. The distribution of participants between the two groups is clearly illustrated in Figure 1, which provides a visual representation of how the patients were allocated to each group and the overall flow of participants throughout the study. This breakdown allows for a comprehensive understanding of the sample population and the methodology used to categorize and analyze the data. The baseline characteristics, symptoms, functionality, and health-related quality of life of the participants in both groups are summarized and presented in Table 1. Upon reviewing the data, it became evident that both groups--active and sedentary--shared similar demographic characteristics, such as age, gender, and other sociodemographic factors, as well as comparable scores on [PERSON]'s comorbidity index, which is a measure of the burden of comorbid conditions. However, one notable difference was that the sedentary group was significantly older than the active group, with a \(p\)-value of 0.001, indicating that age was a distinguishing factor between the two groups. Despite this difference in age, no significant differences were observed between the two groups concerning the duration of their hospital stay or the severity of their CAP, as indicated by the \(p\)-value greater than 0.05. This suggests that the severity of the pneumonia and the length of hospitalization were comparable across both groups, regardless of their activity levels. Furthermore, no significant differences were found in the symptomatic outcomes of the patients, meaning that both the active and sedentary groups reported similar levels of symptoms during the course of their illness. Additionally, it is worth noting that none of the patients included in the study required admission to the intensive care unit, invasive mechanical ventilation, or treatment outside of the pulmonary ward, which indicates that all participants had a relatively stable clinical course and did not experience complications that would require more intensive medical interventions. Concerning quality of life, significant differences were found in the mobility, activities of daily living and self-care subscores (\(p<0.05\)), with poorer values in the sedentary group. The active group showed significantly higher VAS score than the sedentary group (\(p=0.02\)). Additionally, the sedentary group reported significantly poorer results in the functional evaluation for mobility (\(p=0.003\)), activities of daily living (\(p=0.011\)), participation (\(p<0.001\)) and total (\(p=0.002\)) WHODAS 2.0 score. Table 2 shows symptomatic and health-related quality of life differences among and between groups at hospital discharge. Both groups had significant differences between admission and discharge in fatigue with a significant improvement. Dyspnea scores also showed an improvement in both groups; however, only the sedentary group presented significant results (\(p=0.008\)). No significant differences between groups were observed at discharge.