This study is one of the first studies in Iran that not only examines the impact of the COVID-19 pandemic on the level of PA, but also examines other psychological variables such as self-esteem and social physical anxiety during the COVID-19 pandemic. Specifically, this study had two objectives. First, it aims of to compare PA levels, self-esteem and social physical anxiety of the participants from before to during the COVID-19 pandemic. Second, it aims to investigate the relationship between changes in these variables, from before to during the COVID-19 pandemic.
As predicted, the results showed that all the measured indices were different before and during the pandemic, lower levels of PA and self-esteem and higher levels of social anxiety from before to during the COVID-19. Contrary to our hypothesis, we only found one significant negative association between self-esteem of individuals and their physical social anxiety (higher self-esteem was associated with lower physical social anxiety) both on the changes scores from before to during the COVID-19. However, PA changes were associated neither with self-esteem nor with physical social anxiety changes.
The findings indicating detrimental effects of the COVID-19 pandemic on the levels of PA and of psychological indicators are in line with previous studies [6, 28–30]. For example, Di Franco et al. [10] in their study examined the effects of social distance on mental status and PA during the COVID-19 pandemic. In their study of 1,132 Italian athletes, the researchers concluded that the COVID-19 pandemic had a negative effect on perceived stress as well as psycho-biological and social conditions.
Amini et al. [15], in their research, show that the COVID-19 pandemic negatively affected the level of PA of Iranian individuals. Therefore, the findings of the present study, in line with the findings of Amini et al. [15], show that the level of PA of the Iranian people has decreased significantly compared to the time before the pandemic. The results of this study also showed that the level of sedentary behaviours (the amount of time people spend sitting) has increased significantly. These changes are seen in both genders. Amini et al. [15] also observed the negative effects of pandemics in both genders. However, others have shown that the pandemic has mainly affected the intensity of PA and not its frequency in Iran [31].
In another study, Cheval et al. [9] examined the association between PA change, sedentary behaviour, and mental health during the coronavirus pandemic in France and Switzerland. In their study, participants also answered online questionnaires that measured PA, mental and physical health, anxiety and depressive symptoms. Their findings show that the COVID-19 pandemic, although leading to a decrease in vigorous activity as well as an increase in sedentary behaviour among the population, the amount of moderate PA or walking among individuals have also increased. In the present study, PA in all its indicators such as moderate and vigorous PA, walking and over-all PA score decreased during the COVID-19 pandemic period compared to before. The findings of the present study are consistent with the findings reported by Cheval et al. [9] regarding vigorous PA, but the results are in contrast with their findings on other indicators such as moderate PA and walking. These differences can be explained considering the culture of sports and PA among the participants. We can speculate that people in developed countries such as France and Switzerland are more likely than people in countries like Iran to employ benefits of PA to improve their own physical and psychological health. Another possible reason for the decrease in PA of the participants of the present study after the pandemic is the type of occupation of individuals. As reported in the results and participants sections, the majority of those who participated in the present study were either students and university students or government employees. Universities and schools were closed during the COVID-19 pandemic. Virtual and distance education were implemented to replace traditional teaching strategies. In addition, for employees, telecommuting has replaced attendance at work. Overall, it seems that these frequent and long stays at home, as well as the available stress and fear of leaving home, all led to increased sedentary behaviours and less presence in sports places.
Although the results of the present study did not show any significant relationship between PA changes and other psychological indicators such as self-esteem and social physical anxiety changes, they indicated a significant and negative relationship between self-esteem and social physical anxiety. To explain this finding, it can be said that high self-esteem has probably reduced concerns about weight and appearance of people in social situations and therefore has reduced the level of social physical anxiety [20]. This relationship has been established in this study.
In the present study, decreased self-esteem and increased post-pandemic social physique anxiety were reported. Research has shown that with the onset of the COVID-19 pandemic, people's use of social networks such as Instagram has increased dramatically [40]. On the other hand, it has been found that there is a relationship between the use of social networks and increased body dissatisfaction and reduced self-esteem [40]. Therefore, the reported decrease in self-esteem, as well as the increase in levels of social physique anxiety among the sample studied in the present study, can be attributed to the possible increase in people's use of social networks, especially Instagram. In the present study, the use of social networks has not been measured. It is suggested that future research measures the use of social networks during the pandemic and compares it with before the pandemic, to examine the impact of the pandemic address the level of PA and indicators of mental health such as self-esteem and social physique anxiety.
PA is an essential part of a healthy lifestyle that can prevent or manage chronic diseases, facilitate daily life activities, and also maintain physical function in people, especially the elderly [9]. In other words, PA can be associated with a myriad of positive physical and mental health consequences [9]. However, since the results of the present study could not show a relationship between the level of PA and other psychological variables, it is suggested that the findings of this study should be applied more cautiously. Therefore, governments especially the government of Iran, with the help of experts in the field of sports and health should create conditions allowing individuals to participate in sports and PA with more motivation and facilities. They could also aim to prevent the accumulation of sedentary behaviours, which are associated with detrimental mental and physical problems.
This study is one of the first studies in an Iranian sample which investigates the impact of the COVID-19 pandemic on the level of PA and on some psychological variables. However, the results of the present study have several potential limitations. First, the study results are limited by the traditional limitations of cross-sectional study designs. For example, one of the limitations of the present study was the retrospective assessment of variables in reference of the before-lockdown period. In this study, participants were asked to report their level of physical activity and psychological indicators in the two time periods before and during the COVID-19 pandemic. Although post-pandemic questions coincided with research implementation, pre-pandemic questions were retrospective and past-related. The next limitation of the present study can be attributed to the geographical scope of the respondents who completed the web-based questionnaire. This dispersion may not be the same throughout the country in different regions and may be more specific to a particular part of the country (In the present study, participants were from different cities of Iran, but most of them were from Khuzestan, Tehran, Alborz and Kurdistan provinces). Another limitation of the present study was that it was a web-based one. Mainly, some people could not participate in this study due to lack of Internet access, absence in cyberspace or lack of knowledge to complete the questionnaires of this study. Therefore, the findings of the present study should be used with more caution. Due to the above-mentioned limitations, it is suggested to conduct other researches, which may tackle those limitations.