Brief report: The impact of the COVID-19 pandemic on health behaviors in adolescents with Autism Spectrum Disorder

BackgroundThere is concern that the COVID-19 pandemic may negatively affect health behaviors in youth, especially youth diagnosed with Autism Spectrum Disorder (ASD).ObjectiveThe purpose of this paper was to examine changes in physical activity, screen-time, and sleep in adolescents with ASD due to the COVID-19 pandemic.MethodsNine adolescents with ASD completed surveys measuring physical activity, screen-time, and sleep duration prior to and during the pandemic.ResultsA significant decrease in days of physical activity (4.17 vs 2.27; p = 0.0006), and a significant increase in hours of both weekday (3.69 vs 6.25; p = 0.007) and weekend screen-time (5.94 vs. 7.39; p = 0.004) was observed during the pandemic. No changes regarding sleep duration was observed.ConclusionsAlthough preliminary, results suggest that physical activity and screen-time may be negatively affected by the COVID-19 outbreak in youth with ASD. The development of interventions to promote health behaviors in ASD populations during long periods of less-structured time (quarantine) should be considered.     

Women's Substance Use and Mental Health During the COVID-19 Pandemic

PurposeWomen are experiencing greater unemployment and increased stress from childcare responsibilities than men during the COVID-19 pandemic. Women with these experiences may be at particular risk for mental illness and increased substance use during the COVID-19 pandemic. The purpose of the study was to assess women's substance use, mental health, and experiences of COVID-19 pandemic impacts.MethodsA national online survey was administered to adult women from September to November 2020. The survey included questionnaires assessing mental health, loneliness, intolerance for uncertainty, social support, substance use, and intimate partner violence (IPV).ResultsA total of 499 women responded; most were White, college educated, and in their mid-30s. Of the 20.24% who acknowledged at least one IPV problem, 29.7% stated that their IPV problems have gotten worse since the pandemic began, and 16.83% said that they have increased their drug or alcohol use to cope with their relationship problems. Anxiety, perceived daily impact of COVID-19, and lower self-efficacy were significant predictors of COVID-19 anxiety. Those with risky alcohol use had significantly higher anxiety (p = .028) and depression (p = .032) than those with low-risk alcohol use.ConclusionsGreater anxiety about COVID-19, greater reported changes in daily life due to the pandemic, and high-risk alcohol use are related to greater mental health–related distress among women. For some, IPV has gotten worse during the pandemic and drug or alcohol use is a coping mechanism.     

Experimental pre-tests of public health communications on the COVID-19 vaccine: A null finding for medical endorsement,risk and altruism

ObjectiveVaccination campaigns against COVID-19 will only be successful if enough people want to take the vaccine. We tested a government communications intervention to encourage uptake.DesignA pre-registered randomised controlled trial.MethodsA large, nationally representative sample were randomly assigned to see one of eight posters. The posters varied by image (general practitioner or two hospital doctors) and message (control with public health guidance not related to vaccination, endorsement of the vaccine from the pictured doctor, endorsement with information about COVID-19 risk, endorsement with information about risk and appeal to get vaccinated to protect friends and family). The posters were presented as part of a larger study. The main outcomes were intention to be vaccinated and how soon people would be willing to be vaccinated.ResultsThe posters induced different reactions indicating that participants had engaged with them. The hospital image was generally preferred to the GP image. Perhaps critically, all intervention messages were trusted less than a control message which did not mention the vaccine (Control Poster Mean = 5.65, SE = 0.09 vs. Poster M Mean = 5.18, SE = 0.09, p <.001; vs. Poster M + R Mean = 5.11, SE = 0.09, p <.001; vs. Poster M + R + F Mean = 5.33, SE = 0.09, p =.01). There were no effects of poster type on intention to take the vaccine or how soon people were willing to take it.ConclusionAlthough the intervention messages were based on the strongest correlates of vaccine hesitancy identified by contemporaneous surveys, none was effective. More recent research suggests that focusing on the risk of COVID-19 may be less effective than focusing on the benefits of vaccination. Null findings can be as important as positive findings for designing public health campaigns. This study informed government communications about the COVID-19 vaccine.     

The impact of COVID-19 pandemic on temporal trends of workplace violence against healthcare workers in the emergency department

BackgroundIt is known that there has been an increase over the years in attacks by patients admitted to the emergency department (ED) on healthcare workers; it is unclear what effect the COVID-19 pandemic has on these attacks.Aimto verify through a long-term time analysis the effect of COVID-19 on ED attacks on healthcare workers.Mothodsa quasi-experimental interrupted time-series analysis on attacks on healthcare workers was performed from January 2017 to August 2021. The main outcome was the monthly rate of attacks on healthcare workers per 1000 general accesses. The pandemic outbreak was used as an intervention point.Results1002 attacks on healthcare workers in the ED were recorded. The rate of monthly attacks on total accesses increased from an average of 13.5 (SD 6.6) in the pre-COVID-19 era to 27.2 (SD 9.8) in the pandemic months, p < 0.001. The pandemic outbreak led to a significant increase in attacks on healthcare workers from 0.05/1000 attacks per month (p = 0.018), to 4.3/1000 attacks per month (p = 0.005).ConclusionsThe COVID-19 pandemic has led to a significant increase in attacks on healthcare workers in the ED. Trends compared to pre-pandemic months do not seem to indicate a return to normality. Health institutions and policymakers should develop strategies to improve the safety of the working environment in hospitals and EDs.     

Psychological Distress and Heavy Alcohol Consumption Among U.S. Young Women During the COVID-19 Pandemic

IntroductionThe predictors of heavy drinking among U.S. young women during the COVID-19 pandemic are not well-examined. This study aims to determine the prospective relationship between COVID-19 psychological distress and heavy alcohol use among U.S. young adult women.DesignThis study used the COVID-19 Adult Resilience Experiences Study (CARES) data collected from April 13, 2020, to August 31, 2020 (T₁) and September 21, 2020, to March 15, 2021 (T₂). Among the young adults (ages 18–30) who participated in both surveys, a total of 684 identified as women (including transgender women) and were included in the analysis. Three or more drinks as a typical intake were defined as heavy drinking. Psychological distress in T₁ was measured using scores for financial stress, COVID-19–related worry, and COVID-19–related grief. A series of logistic regression analyses were performed to identify risk factors associated with young women's heavy drinking during the pandemic.ResultsTwenty-two and one-half percent of young women reported heavy drinking in a typical intake. After controlling for covariates, women who reported high levels of COVID-19–related grief were more likely to report heavy drinking (odds ratio, 1.06; 95% confidence interval [CI], 1.01–1.13; p < .05). Those with high levels of COVID-19–related worry were less likely to report drinking heavily (odds ratio, 0.90; 95% confidence interval, 0.85–0.97; p < .01).ConclusionsThose who suffer from a deeper sense of COVID-19–related grief are particularly at risk of heavy drinking and should be targeted for outreach and clinical intervention. Further research is necessary to determine the long-term impacts of the pandemic on heavy drinking among young women and should include a more comprehensive assessment of psychological distress.     

Why Women Sit: Determinants of Leisure Sitting Time for Working Women

BackgroundSedentary behavior is associated with negative health consequences independent of physical activity levels. Evidence suggests the work environment promotes sedentary behavior regardless of sector, and that employees with occupations requiring longer sitting times differ only marginally in leisure sitting time from those with more active occupations. Because physical activity opportunities may be limited across many work settings, leisure sedentary time may be more easily replaced with physical activity. Understanding correlates of leisure sedentary behaviors could inform interventions, specifically for women who are among the least active in America.MethodsFemale employees at two universities completed online surveys (n = 156; mean age, 45.12 [SD = 12.5]; mean BMI, 26.7 kg/m² [SD = 5.9]; mean work hours/week, 43.7 [SD = 9.4]). Bivariate correlations and two hierarchical regression analyses were conducted to examine personal and behavioral correlates of weekday and weekend leisure sitting time.FindingsFinal regression models revealed that greater weekday leisure sitting time (R² = 0.307) was related with being older (p = .006), having fewer children (p = .001), self-reporting poorer health (p = .006), and greater weekend sitting time (p < .001). Greater weekend leisure sitting time (R² = 0.261) was related with greater work-related sitting time (p = .020) and greater weekday leisure sitting time (p < .001). Physical activity was not related with weekday or weekend leisure sitting time.ConclusionsThe most prominent correlates of leisure sitting time were other types of sedentary behaviors. This suggests that sedentary time in one segment of life predicts time spent sitting in other areas of life. Future interventions should target decreasing sedentary behaviors during leisure time specifically, in addition to increasing physical activity behavior.     

Indicators of poor mental health and stressors during the COVID-19 pandemic,by disability status: A cross-sectional analysis

BackgroundEvidence from previous public health emergencies indicates that adults with disabilities have higher risk for morbidity (physical and mental) and mortality than adults without disabilities.ObjectiveTo provide estimates of mental health indicators and stressors for US adults by disability status during April and May 2020, shortly following the emergence of the COVID-19 pandemic.MethodsWe analyzed data from Porter Novelli View 360 opt-in Internet panel survey conducted during the weeks of April 20th and May 18th^, 2020 among 1004 English-speaking adults aged ≥18 years without and with disabilities (serious difficulty with hearing, vision, cognition, or mobility; any difficulty with self-care or independent living). Weighted logistic regression was used to test for significant differences between calculated prevalence estimates at the P ≤ .05 level.ResultsOne in four adults reported any disability. Adults with any disability were significantly more likely than adults without disability to report current depressive symptoms, frequent mental distress, suicidal ideation, and COVID-19-related initiated or increased substance use (all p values < .0001). Adults with disabilities also reported significantly higher levels of stressors, such as access to health care services (p < .0001), difficulty caring for their own (or another’s) chronic condition (p < .0001), emotional or physical abuse from others (p < .001), and not having enough food (p < .01).ConclusionsThe disproportionately high levels of poor mental health indicators among adults with disabilities as compared to those without highlight the importance of delivering timely mental health screening and treatment/intervention during and after the COVID-19 pandemic to persons with disabilities.     

Predictors of intention to vaccinate against COVID-19: Results of a nationwide survey

BackgroundPublic polling indicates that vaccine uptake will be suboptimal when COVID-19 vaccines become available. Formative research seeking an understanding of weak vaccination intentions is urgently needed.MethodsNationwide online survey of 804 U.S. English-speaking adults. Compensated participants were recruited from the U.S. through an internet survey panel of 2.5 million residents developed by a commercial survey firm. Recruitment was based on quota sampling to produce a U.S. Census-matched sample representative of the nation with regard to region of residence, sex, and age.ResultsCOVID-19 vaccination intentions were weak, with 14.8% of respondents being unlikely to get vaccinated and another 23.0% unsure. Intent to vaccinate was highest for men, older people, individuals who identified as white and non-Hispanic, the affluent and college-educated, Democrats, those who were married or partnered, people with pre-existing medical conditions, and those vaccinated against influenza during the 2019–2020 flu season.In a multiple linear regression, significant predictors of vaccination intent were general vaccine knowledge (β = 0.311, p < .001), rejection of vaccine conspiracies (β = ?0.117, p = .003), perceived severity of COVID-19 (β = 0.273, p < .001), influenza vaccine uptake (β = 0.178, p < .001), having ≥ 5 pre-existing conditions (β = 0.098, p = .003), being male (β = 0.119, p < .001), household income of ≥ $120,000 (β = 0.110, p = .004), identifying as a Democrat (β = 0.075, p < .029), and not relying upon social media for virus information (β = -0.090, p 〈0 0 2). Intent to vaccinate was lower for Fox News (57.3%) than CNN/MSNBC viewers (76.4%) (χ2 (1) = 12.68, p < .001). Political party differences in threat appraisals and vaccine conspiracy beliefs are described.ConclusionsDemographic characteristics, vaccine knowledge, perceived vulnerability to COVID-19, risk factors for COVID-19, and politics likely contribute to vaccination hesitancy.     

Evidence of Social and Structural COVID-19 Disparities by Sexual Orientation,Gender Identity,and Race/Ethnicity in an Urban Environment

The ongoing COVID-19 pandemic has had widespread social, psychological, and economic impacts. However, these impacts are not distributed equally: already marginalized populations, specifically racial/ethnic minority groups and sexual and gender minority populations, may be more likely to suffer the effects of COVID-19. The COVID-19 Resiliency Survey was conducted by the city of Chicago to assess the impact of COVID-19 on city residents in the wake of Chicago’s initial lockdown, with particular focus on the experiences of minority populations. Chi-square tests of independence were performed to compare COVID-19-related outcomes and impacts on heterosexual vs. sexual minority populations, cisgender vs. gender minority populations, and White vs. racial/ethnic minority subgroups. Marginalized populations experienced significant disparities in COVID-19 exposure, susceptibility, and treatment access, as well as in psychosocial effects of the pandemic. Notably, Black and Latinx populations reported significant difficulties accessing food and supplies (p = 0.002). Healthcare access disparities were also visible, with Black and Latinx respondents reporting significantly lower levels of access to a provider to see if COVID-19 testing would be appropriate (p = 0.013), medical services (p = 0.001), and use of telehealth for mental health services (p = 0.001). Sexual minority respondents reported significantly lower rates of using telehealth for mental health services (p = 0.011), and gender minority respondents reported significantly lower levels of primary care provider access (p = 0.016). There are evident COVID-19 disparities experienced in Chicago especially for Black, Latinx, sexual minority, and gender minority groups. A greater focus must be paid to health equity, including providing increased resources and supplies for affected groups, adapting to inequities in the built environment, and ensuring adequate access to healthcare services to ameliorate the burden of COVID-19 on these marginalized populations.Supplementary InformationThe online version contains supplementary material available at 10.1007/s11524-020-00497-9.     

Regional differences in movement behaviours of children and youth during the second wave of the COVID-19 pandemic in Canada: follow-up from a national study

ObjectivesPublic health restrictions varied by region during the COVID-19 pandemic and reduced opportunities for children to be physically active. The purpose of this study was to assess regional differences in movement behaviours of Canadian children and youth during the second wave of the COVID-19 pandemic.MethodsA national sample of Canadian parents (n=1568; 58% women) of children and youth (5–17 years of age) completed an online survey. Participants were classified based on region of residence (British Columbia, Prairies, Ontario, Quebec, or Atlantic Canada). Differences in movement and play behaviours (physical activity, outdoor play, sleep, screen time) between children and youth living in different regions were examined.ResultsCompared to children and youth in Quebec (the region with the highest COVID-19 prevalence), children and youth in the Prairies (F_(1,1563)=9.0, p=0.01) and Atlantic Canada (F_(1,1563)=17.1, p<0.001) participated in more moderate-to-vigorous physical activity (MVPA). Compared to Quebec, living in Atlantic Canada increased the odds of meeting the MVPA guideline (odds ratio (OR)=2.1, p=0.02), living in Ontario decreased the odds of meeting the sleep guideline (OR=0.6, p=0.01), and living in Ontario (OR=0.7, p=0.04) or Atlantic Canada (OR=0.6, p=0.049) decreased the odds of meeting the screen time guideline. Children and youth in Atlantic Canada demonstrated smaller declines in outdoor play than their counterparts in Quebec.ConclusionMovement and play behaviours varied between regions of Canada where the highest COVID-19 prevalence corresponded to lower odds of meeting the physical activity guidelines. Low compliance with 24-hour movement guidelines suggests that regional pandemic recovery plans need to prioritize opportunities for healthy movement.     

Impacts of COVID-19 on Nutritional Intake in Rural China: Panel Data Evidence

The COVID-19 pandemic introduced risks and challenges to global food and nutrition security. In this paper, we examine the impact of the COVID-19 pandemic on the nutritional intake of China’s rural residents using panel data and a fixed effects model. The data were collected in 2019 and 2020 and covered nine provinces and 2631 households in rural China. The results reveal that an increase of 100 confirmed cases in a county resulted in a 1.30% (p < 0.01), 1.42% (p < 0.01), 1.65% (p < 0.01), and 1.15% (p < 0.01) decrease in per capita intake of dietary energy, carbohydrates, fats, and proteins, respectively. Moreover, the COVID-19 pandemic had a significant and negative effect on dietary macronutrient intake in the low-income group at the 5% level of significance. Our study indicates that the potential insufficient nutrition situation, nutritional imbalance, and dietary imbalance of low-income rural residents should be addressed appropriately.     

COVID-19 Pandemic and Remote Education Contributes to Improved Nutritional Behaviors and Increased Screen Time in a Polish Population-Based Sample of Primary School Adolescents: Diet and Activity of Youth during COVID-19 (DAY-19) Study

The Coronavirus-19 disease (COVID-19) pandemic has influenced the nutrition of individuals, including the diet followed, food availability, and food security. However, thus far, only a few studies have been published regarding the diet and activity of children and adolescents. The aim of the present study was to analyze the influence of the COVID-19 pandemic and remote education in this period on the diet and physical activity in a Polish population-based sample of primary school adolescents. In June 2020, the Diet and Activity of Youth during COVID-19 (DAY-19) Study was conducted on a population recruited based on stratified random sampling from all regions (schools sampled from counties, and counties from voivodeships). The sample consisted of a total of 1334 adolescents aged 10–16 years. The study assessed the diet and physical activity of the participants using a validated questionnaire which included questions about the period of remote education and the period before the COVID-19 pandemic. The participants were asked about the following: consumption of fruit, vegetables, soft drinks, water, French fries, and fast food; eating meals in front of the television; and the number of days they are physically active and the number of hours they spend watching television. The obtained data were analyzed by stratifying the respondents by the gender, age, size of the city and total COVID-19 morbidity in the voivodeship. It was observed that, during the pandemic and the resultant remote education, the proportion of respondents who declared the recommended intake of fruits and vegetables had increased compared to that before the pandemic—a higher proportion consumed at least three portions of fruit per day (19.0% before pandemic vs. 27.4% during pandemic; p < 0.0001), as well as three and four or more portions of vegetables per day (11.9% vs. 14.5% and 7.5% vs. 11.1%; p = 0.0004). At the same time, the proportion of respondents consuming at least three cups of water per day had increased (41.1% vs. 47.9%; p = 0.0020), whereas the proportion of respondents who never or rarely eat their meals in front of the television had decreased (35.6% vs. 28.9%; p < 0.0001), and the proportion watching television for more than 2 h a day had increased (78.3% vs. 88.4%; p < 0.0001). Based on the results, it may be concluded that, during the period of remote education due to the COVID-19 pandemic, the dietary behaviors of the studied population of Polish adolescents were more beneficial, which included a higher intake of fruit, vegetables, and water, compared to before the pandemic. In spite of the increasing screen time, including eating in front of the television, there was no reduction in the number of days the respondents were physically active.     

Prospective COVID-19 related changes in physical activity and sedentary time and associations with symptoms of depression and anxiety

ProblemThe COVID-19 pandemic is associated with psychological distress. Decreased moderate-vigorous physical activity (MVPA) and increased sedentary time may be exacerbating pandemic-related symptoms of anxiety and depression, but existing studies exploring these associations are almost entirely cross-sectional.MethodsReported data from 2018 and Summer 2020 were used to create change categories based on compliance with MVPA guidelines and relative sedentary time. Participants completed the Patient Health Questionnaire-4 (PHQ-4) in Summer 2020. Associations among changes in MVPA and sedentary time (separately and jointly) with psychological distress (total PHQ-4 score) were examined with ordinal logistic regression and associations with depressive or anxiety symptoms were examined with logistic regression.ResultsAmong 2,240 participants (65% women, mean age 57.5 years), 67% increased sedentary time and 21% became inactive between the two time points. After multivariate adjustment, participants who became (OR = 1.71, 95% CI: 1.05–2.78) or remained inactive (OR = 2.07, 1.34–3.22) were more likely to experience depressive symptoms compared to those who remained active. Participants who increased sedentary time were also more likely to experience depressive symptoms compared to those who maintained sedentary time (OR = 1.78, 1.13–2.81). Jointly, those who increased sedentary time while remaining (OR = 3.67, 1.83–7.38) or becoming inactive (OR = 3.02, 1.44–6.34) were much more likely to have depressive symptoms compared to the joint referent (remained active/maintained sedentary time). Associations with anxiety symptoms were not statistically significant.ConclusionsThese findings support the value of promoting MVPA and limiting sedentary time during stressful events associated with psychological distress, like the COVID-19 pandemic.     

Dietary Patterns and Osteoporosis Risk in Postmenopausal Korean Women

ObjectivesThe prevalence of osteoporosis and related fractures has increased rapidly in Korean women. Proper nutrition intake is associated with the prevention of osteoporosis. We analyzed the association between dietary patterns and the risk of osteoporosis during a 4-year follow-up in postmenopausal Korean women.MethodsPostmenopausal women (n = 1,725) who participated in the Korean Genome and Epidemiology Study were enrolled. Food intake was assessed using a validated semiquantitative food frequency questionnaire, and a quantitative ultrasound device was used to measure the speed of sound at the radius and tibia.ResultsThree major dietary patterns were identified using factor analysis based on baseline intake data: traditional (high intake of rice, kimchi, and vegetables), dairy (high intake of milk, dairy products, and green tea), and western (high intake of sugar, fat, and bread). Multivariate Cox proportional hazards models were used to estimate relative risk for osteoporosis. An inverse association was detected between the dairy dietary pattern and the osteoporosis incidence [relative risk (RR): 0.63, 95% confidence interval (CI): 0.42–0.93, p-trend = 0.055 in radius; RR: 0.56, 95% CI: 0.35–0.90, p-trend = 0.048 in tibia]. Individuals in the highest quintile for the traditional dietary pattern (p-trend = 0.009 in tibia) and western dietary pattern (p-trend = 0.043 in radius) demonstrated a higher risk of osteoporosis incidence than those in the lowest quintile.ConclusionThese results suggested that high consumption of milk, dairy products, and green tea may reduce the risk of osteoporosis in postmenopausal Korean women.     

Psychological-health correlates of physical activity and sedentary behaviour during the COVID pandemic

BackgroundWhile physical inactivity is associated with adverse psychological outcomes, less is known about the psychological outcomes associated with sedentary behaviour, and specifically, its mentally active and passive forms. The COVID-19 pandemic represents a unique opportunity to study associations between these variables in light of widespread stay-at-home mandates and restrictions on outdoor exercise/social activities. Using a cross-sectional dataset acquired during the COVID-19 pandemic in Australia, we examined whether physical activity and sedentary behaviour were associated with subjective quality of life (sQoL) and subjective cognitive dysfunction, and whether these associations were mediated by depressive symptoms.Methods658 participants (males = 169, females = 489) self-reported data on physical activity and sedentary behaviour in an online survey during May 2020–May 2021. Data on physical activity and sedentary behaviour (both mentally active and passive types) was compared according to whether it was collected during or out of a lockdown period. Regression models were used to test associations of physical activity and sedentary behaviour with sQoL and subjective cognitive dysfunction, and whether these associations were mediated by depression severity.ResultsPhysical activity was beneficially associated with sQoL, whereas sedentary behaviour (both total hours and the reduction of mentally active/increase in mentally passive behaviour) was detrimentally associated with sQoL. These associations were mediated by depression severity. Physical activity and sedentary behaviour were also indirectly associated with subjective cognitive dysfunction by virtue of their associations with depression severity.ConclusionsThere are important differences in the psychological correlates of mentally passive and active sedentary behaviours. Our findings suggest that health promotion strategies should focus on not only increasing physical activity but also reducing passive sedentary behaviours as a means of maintaining good psychological health.     

Exploring parent-engaged developmental monitoring of young children before and during the COVID-19 pandemic,Porter Novelli Styles 2019 and 2021

BackgroundEarly identification of developmental delays may have been negatively impacted by the COVID-19 pandemic. Parental engagement in developmental monitoring is a key component to successfully identifying developmental concerns.ObjectiveThe purpose of this project was to understand whether parental engagement in developmental monitoring changed over the course of the COVID-19 pandemic, from Spring 2019 to Fall 2021.MethodsSurvey data were obtained from 2019 SpringStyles and 2021 FallStyles Porter Novelli Public Services ConsumerStyles cross-sectional surveys. Only respondents with at least one child under the age of 8 at the time of the survey were included in the analytic sample (2019 N = 403; 2021 N = 344). Participants were asked several questions about how they monitor their children's development. Changes in frequency of developmental monitoring from 2019 to 2021 were estimated using chi-squared tests.ResultsIn both 2019 and 2021, 89% of parents reported engaging in any type of developmental monitoring. Within the group of parents who engaged in any monitoring, there were no differences across years in the percentage of parents reporting using the methods surveyed, except that a smaller percentage reported comparing their children to others in 2021 (25%) compared to 2019 (36%, p < 0.002).ConclusionsDespite major disruptions to families' lives, there were no significant changes to parents’ overall engagement in developmental monitoring prior to and during the COVID-19 pandemic.     

Preventing obesity among Brazilian adolescent girls: Six-month outcomes of the Healthy Habits,Healthy Girls–Brazil school-based randomized controlled trial

BackgroundSchool-based trials to prevent and reduce prevalence of pediatric obesity in low-income countries are necessary. In Brazil, addressing adolescent obesity is a public health priority.ObjectiveTo evaluate the impact of a group randomized controlled trial involving a 6-month multicomponent school-based obesity prevention program targeting adolescent girls.MethodsThe Healthy Habits, Healthy Girls–Brazil program recruited participants (n = 253; 16.05 ± 0.05 years) from ten eligible public technical schools in São Paulo, Brazil. The program was adapted from an Australian intervention study, which is based on the Social Cognitive Theory. The primary outcome measure was body mass index (BMI), and secondary outcomes included BMI z score, waist circumference, and various sedentary and dietary health-related behaviours.ResultsAlthough changes in BMI were not statistically significant, differences favored the intervention group (adjusted mean difference, − 0.26 kg/m²,se SE = 0.018, p = 0.076). Statistically significant intervention effects were found for waist circumference (− 2.28 cm; p =, p = 0.01), computer screen time on the weekends (0.63 h/day, p; p = 0.02), total sedentary activities on the weekends (− 0.92 h/day, p < 0.01), and vegetable intake (1.16 servings/day, p = 0.01).ConclusionThese findings provide some evidence for the benefit of a school-based intervention to prevent unhealthy weight gain in adolescent girls living in low-income communities.     

Acute classroom exercise breaks improve on-task behavior in 4th and 5th grade students: A dose–response

This study was the first to directly compare the acute effects of 5, 10, and 20 min of classroom exercise breaks on on-task behavior.MethodsIn this within-subject experiment, 96 4th and 5th grade students, in 5 classroom groups, participated in each of four conditions: 10 min of sedentary classroom activity and 5, 10, 20 min of classroom exercise breaks led by research staff. On-task behavior was directly and systematically observed from videotapes before and after each condition. The post-test time-on-task scores were compared using a repeated measures mixed ANCOVA, adjusted for age, classroom, and the time-varying pre-test time-on-task.ResultsTime-on-task was significantly higher in students after 10 min of classroom exercise breaks compared to a sedentary attention control (87.6% vs 77.1%, d = .45, p = .004).ConclusionsTen minutes of classroom exercise breaks improved on-task behavior in children.     

Changes in Workers’ Sedentary and Physical Activity Behaviors in Response to the COVID-19 Pandemic and Their Relationships With Fatigue: Longitudinal Online Study

BackgroundSedentary behaviors and physical activity are likely to be affected by the COVID-19 outbreak, and sedentary lifestyles can increase subjective fatigue. The nonpharmaceutical policies imposed as a result of the COVID-19 pandemic may also have adverse effects on fatigue.ObjectiveThis study has two aims: to examine the changes in sedentary behaviors and physical activity of company workers in response to the COVID-19 pandemic in Japan and to examine relationships between changes in these sedentary behaviors and physical activity and changes in fatigue.MethodsData from a nationwide prospective online survey conducted in 2019 and 2020 were used. On February 22, 2019, an email with a link to participate in the study was sent to 45,659 workers, aged 20 to 59 years, who were randomly selected from a database of approximately 1 million individuals. A total of 2466 and 1318 participants, who self-reported their occupation as company workers, answered the baseline and follow-up surveys, respectively. Surveys captured fatigue, workday and daily domain-specific sedentary behaviors and physical activity, and total sedentary behaviors and physical activity. We used multivariable linear regression models to estimate associations of changes in sedentary behaviors and physical activity with changes in fatigue.ResultsIncreases in public transportation sitting during workdays, other leisure sitting time during workdays, and other leisure sitting time were associated with an increase in the motivation aspect of fatigue (b=0.29, 95% CI 0-0.57, P=.048; b=0.40, 95% CI 0.18-0.62, P<.001; and b=0.26, 95% CI 0.07-0.45, P=.007, respectively). Increases in work-related sitting time during workdays, total sitting time during workdays, and total work-related sitting time were significantly associated with an increase in the physical activity aspect of fatigue (b=0.06, 95% CI 0-0.12, P=.03; b=0.05, 95% CI 0.01-0.09, P=.02; and b=0.07, 95% CI 0-0.14, P=.04, respectively). The motivation and physical activity aspects of fatigue increased by 0.06 for each 1-hour increase in total sitting time between baseline and follow-up (b=0.06, 95% CI 0-0.11, P=.045; and b=0.06, 95% CI 0.01-0.10, P=.009, respectively).ConclusionsOur findings demonstrated that sedentary and active behaviors among company workers in Japan were negatively affected during the COVID-19 outbreak. Increases in several domain-specific sedentary behaviors also contributed to unfavorable changes in workers’ fatigue. Social distancing and teleworking amid a pandemic may contribute to the sedentary lifestyle of company workers. Public health interventions are needed to mitigate the negative effects of the COVID-19 pandemic or future pandemics on sedentary and physical activity behaviors and fatigue among company workers.