The COVID-19 pandemic was an extremely critical event that had a major impact on the physical and mental health of the world's population. The aim of the present work is to investigate whether physical activity plays a protective role in well-being both during the lockdown and afterwards, also assessing the role played by self-efficacy and perception of the risk of contracting COVID-19, as well as past behavior. To this end, two studies were conducted, the first close to lockdown (N = 1061; 76.3% females; mean age = 37.3-range: 18-80) and the second 2 years later (N = 562; 71.0% females; mean age = 33.2-range: 18-76). Descriptive and correlational analyses were performed, along with structural equation modelling. The results confirm the hypothesis of a positive impact of physical activity on emotional well-being alone during lockdown and on more general psychosocial well-being 2 years later. This result showed that physical activity during the pandemic represented an avoidance strategy from the psychological distress that COVID-19 was generating, whereas 2 years later, it represents a proactive strategy aimed at generating a positive mental health condition. These results provide a better understanding of the role physical activity plays in well-being by representing a resource for protecting as well as promoting the mental health of individuals.
Keywords: COVID-19; eudaimonic well-being; hedonic well-being; physical activity; positive mental health; risk perception; self-efficacy.