Multicohort Study on Physical Health Condition Status of Adults and Children After Covid-19 Pandemic

The worldwide coronavirus disease outbreak (COVID-19) has led to daily life constraints for global citizens, such as social distancing and the closing of municipal and regional recreation centers, national parks, and playgrounds. This paper proposes a multicohort study on adults’ and children’s physical health after the COVID-19 pandemic. This study is based on the literature reviews, interviews, and online survey reports conducted to assess adults’ and children’s physical health conditions after the COVID-19 pandemic. The “Multicohort Study on the Physical Health Condition Status of Adults and Children After the COVID-19 Pandemic” collects data using a variety of approaches, including surveys, interviews, and monitoring devices. Online surveys include broad demographic information on physical health, whereas interviews provide qualitative insights into personal health outcomes. Wearable devices track weight, BMI, and activity levels, providing objective data to supplement self-reported information. The reliability of these procedures is dependent on consistent replies and well-structured instruments. The study underlines the importance of public health measures that promote physical exercise and mental health, particularly among sedentary people, to improve overall well-being during the epidemic. Data show that adults aged 25–45 have become less active post-pandemic, while children experienced weight gain due to reduced physical activity. Health issues linked to inactivity have risen, with 33% of inactive individuals becoming more active and 40.3% of active individuals increasing their activity. Public health interventions targeting inactive individuals significantly improved well-being. The study highlights that MCS achieved superior performance metrics, including a 95.51% prediction ratio and 96.75% overall performance.