## 1 Introduction  
The COVID-19 pandemic poses a tremendous threat to the health of the general population and, in particular, to people with mental disorders. The latter may be prone to stronger emotional responses triggered by the COVID-19 epidemic [1, 2]. Infection with SARS-CoV-2 may also directly affect mental health. Previous studies have shown a relationship between infection with SARS-CoV-2 and the occurrence of various mental disorders de novo. The long-term effects of infection on the nervous system are still under investigation [3, 4]. People who experienced mental health challenges prior to the pandemic may be at greater risk of contracting infection because of problems with understanding the situation, assessing the risk, and adhering to preventive behavior. On the one hand, the need of hospitalization or outpatient healthcare services increases the risk of infection. On the other hand, fear of reaching out for a professional help and a lack of available spotsin mental healthcare facilities are serious risks for further development of disorders [5]. Isolation and blockades from social contact can cause depression and aggravation of anxiety disorders [6; 7]. In research conducted by the authors at the beginning of the COVID-19 pandemic, it was observed that participation in a rehabilitation program (including physical exercise, cognitive and social training) can reduce the severity of symptoms of depression and anxiety, having at the same time a positive impact on the overall quality of life of patients suffering from mental disorders [8]. We prepared this rehabilitation program in accordance with the assumptions of community psychiatry, focusing not only on patient deficits and disabilities (which is related to the perspective of the disease) but also on their possibilities and aspirations (a recovery perspective).  
Due to restrictions related to the COVID-19 pandemic, changes were introduced to the initial rehabilitation program. They included shortening of its duration, limitation of social skills training and workshops with psychologists, as well as resignation from all activities conducted in larger groups (group gymnastics, active music therapy, thematic lectures, etc.).  
The aim of the study was to assess the effectiveness of the modified rehabilitation program under the Mental Health Support Centre (CWZP) in Tarnowskie Gory in the light of the introduced sanitary restrictions due to COVID-19. In this study, we investigate the differences between the original version of our therapeutic program and the modified one shaped by the superior conditions of the pandemic. Final mental health outcomes of the program are interpreted in relation to them (Table 1).  
\begin{table}
\begin{tabular}{p{113.8 pt} p{113.8 pt}} \hline \hline
**Elements of the Rehabilitation Program** & **Elements of the Rehabilitation Program after** \\
**before the Introduction of** & **Modification due to Sanitary Restrictions** \\ \hline Psychiatric consultation & Psychiatric consultation \\ \hline Psyoheducation & Psychoeducation \\ \hline Education of families or & - \\ \hline guardians & \\ \hline Therapeutic community & - \\ \hline Psychological & Psychological \\ \hline examination & examination \\ \hline Individual psychological & Individual psychological \\ \hline therapy & therapy \\ \hline Group therapy with & - \\ \hline psychologist & \\ \hline Soft skills training \& & Soft skills training \& \\ \hline activization exercises & activization exercises \\ \hline Relaxation & Relaxation \\ \hline Individual psychotherapy & Individual psychotherapy \\ \hline Morning gymnastics & - \\ \hline (group) & \\ \hline Respiratory and general & - \\ \hline fitness training (group) & \\ \hline Balance training (group) & - \\ \hline Interval training & Interval training \\ \hline (individual) & (individual) \\ \hline \hline \end{tabular}
\end{table}
Table 1: Elements of the rehabilitation program before and after the introduction of sanitary restrictions.