Mental, physical, and cognitive wellbeing during the COVID-19 pandemic: Data from Scotland and Japan

We present data from two studies examining how COVID-19 restrictions affected health behaviours (alcohol consumption, diet, sleep quality, and physical activity levels), mental wellbeing (negative mood) and cognitive function (decision making, attention, learning, working memory, and time perception) in association with sociodemographic factors. Study 1 assessed participants in Scotland and presents cognitive function data for five timepoints. Study 2 is transnational, assessing participants in Scotland and Japan. Data are stored as CSV files. Reuse may involve examining further effects of pandemic enforced social isolation or serve as baseline data when assessing social isolation in expeditions or ageing. (PsycInfo Database Record (c) 2023 APA, all rights reserved)

Factors associated with decreased physical activity levels among community-dwelling residents during the coronavirus disease 2019 pandemic: a long-term observational study.

[Purpose] The purpose of this study was to determine the factors associated with decreased physical activity levels among community residents over a long-term observation period during the coronavirus disease 2019 (COVID-19) pandemic. [Participants and Methods] We conducted a cross-sectional study using a self-administered questionnaire and daily steps as an indicator of physical activity levels. The study population consisted of 704 community-dwelling residents aged 40 years and older who participated in the health program from 2019 to 2020. We compared the daily steps from March-December 2019 to March-December 2020 and performed multivariate analysis to identify the factors associated with decreased daily steps. [Results] Of all participants, 447 (63.5%) returned the questionnaire and 309 (43.9%) were included in the analysis. During the COVID-19 pandemic, 133 (43.0%) respondents had decreased physical activity levels. The multivariate analysis showed that working (odds ratio, 2.08; 95% confidence interval, 1.10-3.94) was significantly associated with decreased daily steps during the COVID-19 pandemic. [Conclusion] There was a significant association between decreased physical activity levels and working during the COVID-19 pandemic. When restrictive measures such as teleworking are implemented, it may be necessary to take measures to prevent a decline in physical activity levels.

Using CO2 as a Ventilation Clue in Classrooms

In the era of COVID19, we need to quickly find and fix classrooms that have inadequate ventilation to reduce long-range airborne transmission of diseases. Historically, the limited available data has shown classrooms in the United States to be under ventilated in relation to consensus standard ventilation values that do not consider airborne infectious disease risk. Carbon dioxide (CO2) is a reasonable proxy of emissions from humans. This presentation will discuss the assumptions and uncertainties in using carbon dioxide concentrations as a proxy for ventilation in classrooms. Specifically, the influence of student density and activity level on carbon dioxide concentration will be modeled for a range of student ages and activities. This analysis shows classrooms with high carbon dioxide concentrations (above 2, 000 ppmv) are unlikely to be meeting United States ventilation standards. However, uncertainties mean conclusions cannot be easily made about ventilation rates in classrooms with lower carbon dioxide concentrations. © 2022 17th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2022. All rights reserved.

Airborne infection risk in classrooms based on environment and occupant behavior measurement under COVID-19 epidemic

The changes of indoor environment and occupant behavior (OB) are two main causes for the gap between predicted and actual airborne infection risk. To improve the accuracy of COVID-19 airborne infection risk assessment, the environment (CO2 concentration) and OBs (occupant area per person (OA) and activity level (AL)) in three typical classrooms of a primary school in Tianjin, China was selected to conduct the on-site measurement. Based on the measured data, a modified Wells-Riley model was proposed to predict the infection risk, and a risk-controlled ventilation strategy was developed to calculate the ventilation demand. Results indicated that classrooms in the breaking time (B-T) showed a lower indoor CO2 concentration (C in), larger OA, and higher AL than in the teaching time (T-T). The variation tendency of the calculated infection risk increment in T-T was consistent with C in while in B-T was significantly affected by OA and AL, and the maximum fluctuation extent in B-T was two times of that in T-T. Moreover, to avoid the risk spreading in classrooms, a feasible solution of dynamic ventilation control based on the real-time infection risk was proposed, thus facilitating to provide a healthy and sustainable environment for students in classrooms. © 2023 Informa UK Limited, trading as Taylor & Francis Group.

Feature-Modified SEIR Model for Pandemic Simulation and Evaluation of Intervention Approaches

SEIR (susceptible-exposed-infected-recovered) model has been widely used to study infectious disease dynamics. For instance, there have been many applications of SEIR analyzing the spread of COVID to provide suggestions on pandemic/epidemic interventions. Nonetheless, existing models simplify the population, regardless of different demographic features and activities related to the spread of the disease. This paper provides a comprehensive SEIR model to enhance the prediction quality and effectiveness of intervention strategies. The new SEIR model estimates the exposed population via a new approach involving health conditions (sensitivity to disease) and social activity level (contact rate). To validate our model, we compare the estimated infection cases via our model with actual confirmed cases from CDC and the classic SEIR model. We also consider various protocols and strategies to utilize our modified SEIR model on many simulations and evaluate their effectiveness. © 2022 IEEE.

Impact of COVID-19 on dietary intake, sleeping patterns and physical activity levels among Malaysian University students.

OBJECTIVES: The COVID-19 pandemic has brought a significant impact on people's behaviour and lifestyles. Limited research has been conducted on the impact of COVID-19 on Malaysian university students' lifestyle modifications. This study aims to identify the impact of COVID-19 on dietary intake, sleeping patterns and physical activity levels among Malaysian university students. METHODS: A total of 261 university students were recruited. Sociodemographic and anthropometric data were collected. Dietary intake was assessed using PLifeCOVID-19 questionnaire, sleep quality was assessed using Pittsburgh Sleep Quality Index Questionnaire (PSQI) while physical activity level was assessed using International Physical Activity Questionnaire-Short Forms (IPAQ-SF). SPSS was used to perform statistical analysis. RESULTS: 30.7% of the participants adhered to the unhealthy dietary pattern, 48.7% had poor quality of sleep and 59.4% engaged in low physical activity levels during the pandemic. Unhealthy dietary pattern was significantly associated with a lower IPAQ category (p=0.013), and increased time spent sitting (p=0.027) during the pandemic. Participants being underweight before the pandemic (aOR=2.472, 95% CI=1.358-4.499), increased takeaway meal consumption (aOR=1.899, 95% CI=1.042-3.461), increased snacking between meals consumption (aOR=2.989, 95% CI=1.653-5.404) and engaged in a low level of physical activity during pandemic (aOR=1.935, 95% CI=1.028-3.643) were the predictors of unhealthy dietary pattern. CONCLUSIONS: The university students' dietary intake, sleeping patterns, and physical activity levels were impacted in different ways during the pandemic. Strategies and interventions should be developed and implemented to improve the dietary intake and lifestyle of the students.

Effects of Physical Activity and Circadian Rhythm Differences on the Mental Health of College Students in Schools Closed by COVID-19.

Purpose: Since the prolonged sequestration management that was implemented in order to achieve lower infection and mortality rates, there has been a surge in depression worldwide. The correlation between the physical activity level and the detection rate of a depressed mood in college students should be of wide concern. A large number of studies have focused on the association between physical activity levels and a negative mood, but circadian rhythm differences seem to be strongly associated with both physical activity levels and mental illness. Therefore, this paper will examine the correlation between physical activity levels, circadian rhythm differences, and mental health levels in college students. METHODS: Data were collected through a web-based cross-sectional survey. In June and December 2022, questionnaires were administered to college students from three universities in Anhui, China. In addition to socio-demographic information, measures included the International Physical Activity Questionnaire-Short Form (IPAQ-SF), Morning and Evening Questionnaire-5 Items (MEQ-5), and Symptom Check List90 (SCL-90) scales. Correlation analysis was used to understand the relationship between physical activity and circadian rhythm differences in the three aspects of college student's mental health. RESULTS: The analysis of the data led to the conclusion that 28.4% of the 1241 college students in this survey had psychological disorders. The physical activity level of male students was higher than that of female students, but the risk of having depressive tendencies was higher in female students than in male students. There was a significant negative correlation between the physical activity level and scl-90 scores (p < 0.01), which indicates that higher physical activity levels are associated with higher mental health. Circadian rhythm differences and scl-90 scores were significantly positively correlated among college students (p < 0.01), and night-type people had a higher risk of mental illness than intermediate-type and early-morning-type people. CONCLUSIONS: During the period of closed administration due to COVID-19, school college students experienced large and high levels of negative emotional phenomena due to reduced physical activity and public health emergencies. This study showed significant correlations between both physical activity levels and circadian rhythmicity differences and the degree of mental health of college students.

Research on the influence of indoor thermal environment and activity levels on thermal comfort in protective clothing.

With the outbreak of infectious diseases such as Corona Virus Disease 2019, medical staff work intensively in isolated plots, medical disposable protective clothing (MDPC) has poor air condition and humidity permeability, which seriously reduces the thermal comfort of medical staff. In this paper, the effect of indoor thermal environment and activity levels on thermal comfort inside MDPC was studied by experiment. Five parts of the body were measured inside MDPC and the appropriate movements were chosen to simulate different levels of labor intensity. Meanwhile, physiological parameters and subjective thermal sensation were statistically analyzed. The results showed the influence range of different indoor temperatures on the temperature and humidity inside MDPC was about 1 °C and 10 %, respectively; it indicated that the environment inside MDPC could be improved by reducing indoor temperature, that is, a cross intelligent adjustment mode was proposed. The effect of labor intensity on the temperature inside MDPC was significantly less than that of humidity. Within 20 min, the humidity changes under moderate and heavy labor intensity were even more than 10 %, and the subjective discomfort threshold of the subjects increased by nearly 50 %. Furthermore, the maximum benefit could be obtained by concentrating cooling on back, forehead, chest and upper arm. Theoretical models of working time, labor intensity, and temperature and humidity inside MDPC under different indoor temperatures and different parts were given. In addition, acceptable regions inside MDPC which were approximately parallelogram in the enthalpy-humidity chart. These conclusions could be a reference for future thermal comfort inside MDPC research.

IMU-based monitoring of discharged patients with COVID-19 for the assessment of in-home recovering

The coronavirus pandemic (COVID-19), due to severe acute respiratory syndrome coronavirus-2, is a major current public health problem worldwide. It is crucial to recognize that recovery of patients with COVID-19 does not end with the hospital discharge but rather begins, and improving daily physical activity (PA) seems crucial to this recovery. Thus, characterizing PA in patients with COVID-19 after discharge should be a priority in public health. Furthermore, reporting the impact of COVID-19 on the functional status and PA in the long-running follow-up of patients would allow to understand the evolution and prognosis of the disease and develop a strategy of its management [1]. Hence, we aim to investigate PA and functional status in patients who suffered from COVID-19 across the severity of the disease. This paper describes the algorithm developed for the estimation of PA from data collected with an inertial measurement unit (IMU) and the preliminary results of the objective evidence of the improvement of activity level over time. © 2022 IEEE.

PHYSICAL ACTIVITY AND PSYCHOLOGICAL WELLBEING OF STUDENTS OF THE UNIVERSITY OF LJUBLJANA DURING THE COVID-19 PANDEMIC

Regular physical activity is an essential factor of a healthy lifestyle. The goal of our study was to assess the consequences of the COVID-19 pandemic on the regularity of physical activity, weight gain, and psychological wellbeing of students at the University of Ljubljana (n=4911). We used an online Likert type questionnaire to compare groups of more and less frequently active students and observed gender differences in physical activity and psychological wellbeing. We found that, on average, students have been slightly less physically active than before the pandemic, and their psychological wellbeing is moderately worse than before the pandemic. Compared to less active students, students who were more regularly physically active were less likely to describe their psychological wellbeing as worse or much worse than before the pandemic. In addition, the least regularly physically active students were more likely to gain body weight compared to more active students. When comparing gender differences, we found that the drop in physical activity was less pronounced in female students. Male students were physically active more frequently than female students, and female students assessed their psychological well-being lower than that of male students. The pandemic had a predominantly negative effect on the physical activity and psychological wellbeing of the students of University of Ljubljana. However, further research is needed for a more detailed analysis of the impact of the pandemic on the student population.

The effects of self-monitoring of physical activity among elderly people with the impact of Covid-19 pandemic

With the growth of aging societies, the health of the elderly is considered one of the critical issues. Regular physical activity is linked to improving physical and mental functions. Therefore, there is an urgent need to motivate the elderly to be physically active. The self-monitoring of physical activity may positively impact the awareness of exercise and health and increase activity levels. In this study, we conducted a 12-week trial with thirty Japanese elderly to investigate the effects of self-monitoring on their attitudes, awareness, and activity levels. During the trial, the participants wore activity trackers daily and responded to repeated questionnaires weekly. The Covid-19 pandemic has begun to appear a few weeks after starting this trial. Therefore, we explored the impact of this pandemic on the participants' activity and psychological status. Overall, the participants increased their perception of the benefits of self-monitoring and willingness to check the activity tracker's feedback. Despite there was a significant decrease (p < 0.05) in the participant number of steps due to the Covid-19 pandemic, the percentage of reduction was small (11%). The self-monitoring of activity may help the elderly maintain activity level during the pandemic. Furthermore, the participants agreed with the importance of monitoring physical activity and the necessity to maintain activity level during the Covid-19 pandemic. © 2021 Association for Computing Machinery. All rights reserved.