Physical Activity Variables Research Articles

Effect of kaempferol ingestion on physical activity and sleep quality: a double-blind, placebo-controlled, randomized, crossover trial.

Kaempferol (KMP), a flavonoid in edible plants, exhibits diverse pharmacological effects. Growing body of evidence associates extended lifespan with physical activity (PA) and sleep, but KMP's impact on these behaviors is unclear. This double-blind, placebo-controlled, crossover trial assessed KMP's effects on PA and sleep. A total of 33 city workers (17 males and 16 females) participated in this study. They were randomly assigned to take either 10 mg of KMP or placebo for 2 weeks in the order allocated, with a 7-day washout period in between. All participants wore an accelerometer-based wearable device (Fitbit Charge 4), which monitored daily PA, heart rate (HR), and HR variability during sleep. The duration of wearing the device was 23.73 ± 0.04 h/day. HR decreased in each PA level, and the mean daily step count and distance covered increased significantly during KMP intake compared to placebo. The outing rate, number of trips, number of recreational activities, and time spent in recreation on weekends increased. Sleep quality improved following KMP intake. The decrease in HR and increase in RMSSD may be important in mediating the effects of these KMPs. KMP leads to behavioral changes that subsequently improve sleep quality and potentially improve long-term quality of life. https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000048447, UMIN000042438.

Diet Therapy and Physical Activity on Blood Sugar Levels in Diabetes Mellitus Patients in the Inpatient Room at Luwuk Banggai Regional Hospital

Diabetes mellitus is a degenerative disease that is closely related to diet therapy. Diet Therapy is a description of the types, amount and composition of food a person eats every day. An urban lifestyle with a diet pattern that is excessively high in fat, salt and sugar results in various diseases including diabetes mellitus.
 The aim of the research is to determine the effect of diet therapy and physical activity on blood sugar levels in diabetes mellitus patients. This research is a quantitative research using an observational approach with a cross sectional design, namely research by studying the correlation between risk factors and the effects they cause by approaching, observing or collecting data at one time. The results of the statistical analysis test show the chi-square test X2 = 4.022 or at a confidence level (α = 0.05) P-value 0.045. So it can be concluded that there is a significant relationship between physical activity variables and blood sugar levels in diabetes mellitus patients. The Odd Ratio (OR) value = 3.3 (95% CI 0.090 – 1.002) meaning that less physical activity has a risk of developing Type II DM that is 3.3 times greater than those with less diet therapy.

MOVEMENT AND HEALTH: NOVEL INSIGHTS INTO PHYSICAL ACTIVITY, ENERGY EXPENDITURE, AND MOTOR FUNCTION

Abstract Physical activity, energy expenditure, and motor function are well-established predictors of health and longevity with aging. Traditionally, most research using these measures has focused on speed of movement and intensity of activity. More recently, interest has grown in ways to refine these movement-related measures—and the methods used to analyze them—to improve predictive and discriminatory power for older adult health outcomes. This symposium will focus on measures derived from traditional in-lab assessments of motor function as well as free-living accelerometry, and their novel application across a variety of large U.S. cohort studies. Ms. Marino will present analyses on the links among heart rate variability, physical activity, and cognitive health in the Atherosclerosis Risk in Communities (ARIC) study. Dr. Dougherty will present the association of fine and gross motor function with MRI-derived brain volumes in the Baltimore Longitudinal Study of Aging (BLSA). Dr. Davoudi will present evidence on the link between physical activity quantities and variability with dementia in the National Health and Aging Trends Study (NHATS). Dr. Schumacher will compare measures of absolute and relative physical activity intensity with incident cardiovascular outcomes and all-cause mortality in the Objective Physical Activity and Cardiovascular Health (OPACH) Study. Finally, Dr. Wanigatunga will describe objectively measured physical activity quantities and patterns by self-reported fatigue levels and HIV status in the Multicenter AIDS Cohort Study (MACS). Collectively, these presentations will highlight novel ways to utilize motor function, energy expenditure, and physical activity data to advance prevention science and promote healthy aging. \ This is an Epidemiology of Aging Interest Group Sponsored Symposium.

Early Detection Patterns Of Chronic Kidney Disease Based On Differences In Individual Health Status In Kendari City

Background: The prevalence of chronic kidney disease (CKD) was small but it continued to increase every year in Kendari City. The patients were difficult to monitor. The aim of this research is to formulate an early detection pattern for CKD based on differences in individual health status in Kendari City. Methods: This quantitative research used a cross sectional study design which was conducted at 4 Community Health Centers and 3 Hospitals in Kendari City, Southeast Sulawesi, Indonesia. Recruited 136 respondents aged between 24-70 years. Data collection by interviews with questionnaires. The dependent variable is health status, and the independent variables include behavior, psychological environment, stress and genetics. Data analysis used chi square statistical tests, crosstabulation and multinomial logistic regression. Results: There is a significant difference in drinking water consumption behavior of less than 1000 ml a day (p<0.0001, OR=1.56, B=-20.276), calorie intake of less than 1534 calories a day (p<0.05, OR=2.13, B=-19.969 ), physical activity (p<0.05, OR=5.7, B=1.735), medication adherence (P<0.01, OR=0.4,B=1.999) and psychological stress environment (p<0.0001,OR=8.6, B=2.151 ) with the respondent's health status. Meanwhile, herbal consumption behavior (p=0.195) and genetic factors (p=0.813) did not show significant differences with individual health status. Conclusion: Early detection patterns for CKD can use the variable such as less drinking water consumption in healthy people and no obedient medication in single disease group. Using variables of less daily drinking water consumption and heavy physical activity in multiple diseases group, and less drinking water consumption, less physical activity, and moderate stress in CKD group.

Relationships between physical activity and other health-related measures using state-based prevalence estimates.

Both physical activity and muscle-strengthening activity have known relationships with other health-related variables such as alcohol and tobacco use, diet, and health-related quality of life (HRQOL). The purpose of this study was to explore and quantify the associations between physical activity measures and health-related variables at the higher state level. This cross-sectional study used data from the 2017 and 2019 Behavioral Risk Factor Surveillance System surveys. State-based prevalence (%) estimates were computed for meeting physical activity guidelines (PA), meeting muscle-strengthening activity guidelines (MS), both PA and MS (MB), drinking alcohol (D1), heavy alcohol drinking (HD), fruit consumption (F1), vegetable consumption (V1), good self-rated health (GH), overweight (OW), obesity (OB), current smoking (SN), and smokeless tobacco use (SL). Descriptive statistics, correlation coefficients, and data visualization methods were employed. Strongest associations were seen between PA and F1 (2017: r=0.717 & 2019: r=0.695), MS and OB (2017: r=-0.781 & 2019: r=-0.599), PA and GH (2017: r=0.631 & 2019: r=0.649), PA and OB (2017: r=-0.645 & 2019: r=-0.763), and MB and SN (2017: r=-0.713 & 2019: r=-0.645). V1 was associated only with PA (2017: r=0.335 & 2019: r=0.357) whereas OW was not associated only with PA. Canonical correlation analysis showed the physical activity variables were directly related (r c=0.884, P<0.001) to the health variables. This study used high-level data to support the many known relationships between PA measures and health-related variables.

Physical activity status prevents symptoms of long covid: Sulcovid-19 survey

BackgroundPhysical activity is indicated as a treatment for Long COVID, but prevention is unknown. This study aimed to investigate the relationship between physical activity (PA) before and after acute SARS-Cov-2 infection and the presence of Long COVID symptoms in adults.MethodsWe used data from the Sulcovid-19, a longitudinal study carried out with individuals who were infected by SARS-Cov-2 between December/2020 and March/2021. Participants were asked about 19 symptoms commonly associated with long COVID. Three PA variables were built, as follows: (1) remained inactive; (2) became inactive; (3) remained active.Results2.919 people were interviewed. The prevalence of individuals who had at least one symptom of Long COVID is 48.3% (95%CI 46.5–51.1). Our results showed that 71.8% (95%CI 70.1–73.4) of the individuals remained inactive, 14.9% (95%CI 13.6–16.2) became inactive and 13.3% (95% CI 12.1–14.6) remained active. The likelihood of experiencing long COVID symptoms was reduced in the musculoskeletal (PR 0.70; 95%CI 0.49–0.99), neurological (PR 0.61; 95%CI 0.43–0.88), and respiratory (PR 0.58; 95%CI 0.35–0.96) systems in those who remained active. In addition, the likelihood of experiencing Long COVID symptoms was 7% less in those who remained active.ConclusionsContinuous PA practice showed important protection effect for Long COVID symptoms in adults.

Association between menstrual cycle phase and metabolites in healthy, regularly menstruating women in UK Biobank, and effect modification by inflammatory markers and risk factors for metabolic disease

BackgroundPreliminary evidence demonstrates some parameters of metabolic control, including glycaemic control, lipid control and insulin resistance, vary across the menstrual cycle. However, the literature is inconsistent, and the underlying mechanisms remain uncertain. This study aimed to investigate the association between the menstrual cycle phase and metabolites and to explore potential mediators and moderators of these associations.MethodsWe undertook a cross-sectional cohort study using UK Biobank. The outcome variables were glucose; triglyceride; triglyceride to glucose index (TyG index); total, HDL and LDL cholesterol; and total to HDL cholesterol ratio. Generalised additive models (GAM) were used to investigate non-linear associations between the menstrual cycle phase and outcome variables. Anthropometric, lifestyle, fitness and inflammatory markers were explored as potential mediators and moderators of the associations between the menstrual cycle phase and outcome variables.ResultsData from 8694 regularly menstruating women in UK Biobank were analysed. Non-linear associations were observed between the menstrual cycle phase and total (p < 0.001), HDL (p < 0.001), LDL (p = 0.012) and total to HDL cholesterol (p < 0.001), but not glucose (p = 0.072), triglyceride (p = 0.066) or TyG index (p = 0.100). Neither anthropometric, physical fitness, physical activity, nor inflammatory markers mediated the associations between the menstrual cycle phase and metabolites. Moderator analysis demonstrated a greater magnitude of variation for all metabolites across the menstrual cycle in the highest and lowest two quartiles of fat mass and physical activity, respectively.ConclusionsCholesterol profiles exhibit a non-linear relationship with the menstrual cycle phase. Physical activity, anthropometric and fitness variables moderate the associations between the menstrual cycle phase and metabolite concentration. These findings indicate the potential importance of physical activity and fat mass as modifiable risk factors of the intra-individual variation in metabolic control across the menstrual cycle in pre-menopausal women.

Terapi Diet Dan Aktifitas Fisik terhadap Kadar Gula Darah Pada Pasien Diabetes Melitus Di Ruang Rawat Inap RSUD Luwuk Banggai

Diabetes mellitus is a degenerative disease that is closely related to diet therapy. Diet Therapy is a description of the types, amount and composition of food a person eats every day. An urban lifestyle with a diet pattern that is excessively high in fat, salt and sugar results in various diseases including diabetes mellitus.&#x0D; The aim of the research is to determine the effect of diet therapy and physical activity on blood sugar levels in diabetes mellitus patients. This research is a quantitative research using an observational approach with a cross sectional design, namely research by studying the correlation between risk factors and the effects they cause by approaching, observing or collecting data at one time. The results of the statistical analysis test show the chi-square test X2 = 4.022 or at a confidence level (α = 0.05) P-value 0.045. So it can be concluded that there is a significant relationship between physical activity variables and blood sugar levels in diabetes mellitus patients. The Odd Ratio (OR) value = 3.3 (95% CI 0.090 – 1.002) meaning that less physical activity has a risk of developing Type II DM that is 3.3 times greater than those with less diet therapy.

PKM Sosialisasi Pembelajaran Keterampilan Gerak Dasar untuk Sekolah Dasar di Kota Makassar

Fundamental movement skills provide an important foundation for elementary school students in their future participation in a variety of physical activities. This community service activity in the form of soialization aims to provide comprehensive knowledge about the importance of learning of fundamental movement skills for students' future and practical implementation in physical education learning. The partner's problem in this activity is that there is still a lack of understanding and not optimal learning of fundamental movement skills in physical education learning at school. The partner in this activity is SD Hang Tuah Makassar, Makassar City, South Sulawesi Province. This socialization activity was divided into several series of activities, namely: (1) Discussion of material with the teacher regarding learning fundamental movement skills, (2) discussion with the teacher regarding learning basic locomotor, non-locomotor and manipulative movement skills based on the theory of fundamental movement skills, and (4) Practice examples of learning fundamental movement skills for students. This activity provided results, namely a comprehensive understanding for teachers and students of the importance of mastering and learning of fundamental movement skills.

Association between physical activity and the prevalence of tumorigenic bacteria in the gut microbiota of Japanese adults: a cross-sectional study

Escherichia coli harboring polyketide synthase (pks+E. coli) has been suggested to contribute to colorectal cancer development. Physical activity is strongly associated with lower colorectal cancer risks, but its effects on pks+E. coli remain unclear. The aim of this study was to investigate the association between pks+E. coli prevalence and physical activity. A cross-sectional study was conducted on 222 Japanese adults (27–79-years-old, 73.9% female). Triaxial accelerometers were used to measure light-intensity physical activity, moderate-to-vigorous intensity physical activity, the physical activity level, step-count, and time spent inactive. Fecal samples collected from participants were used to determine the prevalence of pks+E. coli. Multivariate logistic regression analysis and restricted cubic spline curves were used to examine the association between pks+E. coli prevalence and physical activity. The prevalence of pks+E. coli was 26.6% (59/222 participants). The adjusted odds ratios (ORs) and 95% confidence intervals (CIs) for the highest tertile with reference to the lowest tertile of physical activity variables were as follows: light-intensity physical activity (OR 0.63; 95% CI 0.26–1.5), moderate-to-vigorous intensity physical activity (OR 0.85; 95% CI 0.39–1.87), physical activity level (OR 0.69; 95% CI 0.32–1.51), step-count (OR 0.92; 95% CI 0.42–2.00) and time spent inactive (OR 1.30; 95% CI 0.58–2.93). No significant dose–response relationship was found between all physical activity variables and pks+E. coli prevalence. Our findings did not suggest that physical activity has beneficial effects on the prevalence of pks+E. coli. Longitudinal studies targeting a large population are needed to clarify this association.

Association between Physical Activity and Reduced Mortality in Inoperable Lung Cancer

We examined device-measured physical activity (PA) and sedentary behaviour at the time of diagnosis in people with inoperable lung cancer and investigated their associations with 12-month mortality. The people with inoperable lung cancer wore an accelerometer for seven days prior to the treatment commencement. The analysed PA/sedentary behaviour variables included light-intensity PA, moderate-to-vigorous-intensity PA (MVPA), step count, the total time spent sedentary, and the usual sedentary bout duration. The data on the disease stage, clinical covariates and 12-month mortality were extracted from medical records. Cox regression models were used to estimate the association between the PA measures and 12-month mortality, and the sedentary behaviour measures and 12-month mortality. The models were adjusted for the stage and neutrophil-to-lymphocyte ratio. All the PA and sedentary behaviour variables were dichotomised at their medians for analysis. Eighty-nine participants (70 ± 10 years; 55 [62%] males) contributed valid data. The twelve-month mortality was 30% (n = 27). Compared to the participants who spent ≤4.6 min/day in MVPA (n = 45), those who spent &gt;4.6 min/day (n = 44) had a relative risk of 12-month mortality reduced by 60% (hazard ratio, 0.40; 95% CI, 0.16 to 0.96; 18 versus nine deaths, respectively). The other variables of PA/sedentary behaviour were not associated with 12-month mortality. Higher device-measured MVPA was associated with reduced 12-month mortality in people who were newly diagnosed with inoperable lung cancer.

Physical activity, psychological well-being, and physiological variables in university administrative staff

Objective: To describe and analyze the physical activity, psychological well-being, and physiological variables of employees in a higher education institution in Colombia. Methods: A total of 90 participants were included, divided into 2 groups: women (n=45) and men (n=45). Validated instruments were used to measure levels of physical activity (IPAQ-SF), psychological well-being (PGWBI), and other measurement instruments for physiological variables. Results: The main findings reported correlations between systolic and diastolic hypertension with certain dimensions of psychological well-being and body composition variables, with the highest trend of hypertension being more commonly found in men over 41 years of age than in women. Univariate and multivariate comparison tests did not find significant differences between the study factors (gender, physical activity, PGWBIS, etc.). Conclusions: Men have a higher predisposition to hypertension, and we assert that men have significantly higher averages of hypertension in both systolic and diastolic levels. The association between gender and systolic hypertension also showed a greater tendency in men. Future studies are needed to explore the causal relationship between psychological dimensions and morphophysiological variables in individuals who work daily at university centers, such as office or administrative staff. Keywords: lifestyle, psychological dimensions, body state.

Association between physical activity status and musculoskeletal pain in individuals infected with SARS-CoV-2: Sulcovid-19 survey.

BackgroundThis study aimed to evaluate the association of physical activity (PA) before SARS-Cov-2 infection with Musculoskeletal (MSK) pain after infection. Methods: We used data from the Sulcovid-19, a longitudinal study. This study was carried out in the city of Rio Grande, in the extreme south of Brazil with individuals who were infected by SARS-Cov-2 between December/2020 and March/2021. Participants were asked on MSK pain in the cervical, thoracic, low back, upper and lower limbs. Three PA variables were built, as follows: 1) any PA (yes or no), 2) sufficient PA (based on WHO recommendations), and 3) PA status before and after COVID-19 (i.e., remained inactive, became inactive, and remained active). Results: Participants reporting sufficient PA levels were less likely to experience pain in the cervical (PR 0.70, 0.53–0.92 95% CI) after COVID-19. Those who remained active were less likely to experience pain in the cervical spine and in at least one body site. Becoming inactive increased the likelihood of experiencing pain in the lower limbs after infection by 30%. Conclusions: Continuous PA practice regardless SARS-Cov-2 infection showed important protection effect for MSK as a consequence of infection.

Parents' attitudes regarding their children's play during COVID-19: Impact of socioeconomic status and urbanicity

ObjectivesThe COVID-19 pandemic has had a profound impact on the daily routines of parents and children. This study explored the influence of socioeconomic status (SES) and urbanicity on parents' attitudes toward their children's active play opportunities 6 months and 1.5 years into COVID-19. MethodsA sample of 239 Ontario parents of children aged 12 and younger completed two online surveys (August–December 2020; 2021) to assess parents' intentions, beliefs, and comforts concerning their child's eventual return to play, in addition to various sociodemographic and physical activity variables. Descriptive analyses were run as well as an exploratory factor analysis (EFA) was conducted to group the 14 attitude items into subscales for analysis, to ensure reliability and validity of attitude measures. ResultsIn general, parents in communities with more urban features (e.g., densely populated areas), single-parents, full-time employed parents, and parents with lower-incomes were more hesitant to return their children to active play during the pandemic. ConclusionFindings from this work highlight SES and urbanicity disparities that continue to exist during COVID-19.

Independent and joint associations of aerobic and muscle-strengthening exercise with mental health in adolescents: A cross-sectional analysis before and during COVID-19 using the 2015–2021 National Youth Risk Behavior Survey

PurposeCOVID-19 led to social isolation that may have compromised adolescent mental health. This study examined the independent and joint associations of aerobic physical activity (PA) and muscle-strengthening exercise (MSE) with mental health problems in adolescents. MethodsParticipants were US adolescents who completed the 2015–2021 National Youth Risk Behavior Survey (N = 61,298; 45.7% female). Data were collected between 2015 and 2021 and analyzed in 2023. Outcomes were binary response items asking about feeling sad/hopeless, having difficulty concentrating, remembering, or making decisions, and having a suicidal ideation. Preventive exposure variables were items asking about frequencies of aerobic PA and MSE with responses dichotomized to align with recommendations. Independent and joint associations were examined using robust Poisson regression with covariates selected using double selection lasso. Structural equation models examined the associations treating PA and MSE as continuous predictors and poor mental health as a latent dependent variable. ResultsMeeting either recommendation alone associated with a 4–10% lower prevalence of mental health problems (APR = 0.90–0.96, p < 0.05), and meeting both recommendations associated with a 15%–20% lower prevalence of mental health problems (APR = 0.80–0.85, p < 0.001). Although categorical joint associations were stronger in males (p < 0.05), multiplicative interactions were observed in females using continuous variables for PA and MSE (β = −0.09, p < 0.001). ConclusionMeeting aerobic PA and MSE recommendations associated with lower prevalence of mental health problems. Participation in MSE below recommended levels may be beneficial for females when combined with aerobic PA. Future research should examine these associations by acquiring contextual information and device-based assessments.

Which physical and social characteristics of Brazilian cities contribute to physical activity of adolescents?

This study aimed to analyze the association between adolescents' physical activity and the Brazilian capitals' built and social environment. The units of analysis of this ecological study were the 26 capitals and the Federal District, with data from the National Adolescent Health Survey (2012). The outcome variable was the reported regular physical activity (PA) of ninth graders in Brazilian schools. Exposure variables included characteristics of the natural environment, socioeconomic and educational indicators, urban infrastructure, urban violence, and sociocultural factors retrieved from several secondary sources of Brazilian databases. We adopted multiple linear regression to verify the association between PA and exposure variables. The percentage of active adolescents was 33.0% (95%CI: 32.1; 33.9). In the final model, higher PA was associated with lower temperature, higher Primary Education Development Index, the higher percentage of ramps for wheelchair users, and a higher percentage of leisure-time active adults. The data show that climatic and educational factors, the infrastructure, and the social environment of the capitals can contribute to Brazilian adolescents complying with the recommended weekly PA levels.

Objective physical activity measures to predict hospitalizations among patients with cancer receiving chemoradiotherapy.

592 Background: There is an unmet need for measures that predict adverse events during cancer therapy. Previous studies have demonstrated feasibility and value of collecting physical activity (PA) data from cancer patients undergoing curative-intent chemoradiotherapy using a commercial fitness tracker. Here, we compare the predictive value of objective PA measures versus standard clinical information and assess whether additional PA measures beyond daily step count help predict hospitalization events during treatment. Methods: Cancer patients enrolled in NCT03115398 (2017-2020) wore a Garmin VivoFit continuously during chemoradiotherapy for a variety of solid tumors. ECOG performance status (PS) was assessed at baseline. PA measures tabulated for each day included total step count, peak 30-minute cadence (average step rate over the 30 most active minutes [not necessarily consecutive]), and sedentary time. Baseline PA measures were defined as mean values from up to 14 days prior to start of chemoradiotherapy. Cox regression models with time-dependent (3-day rolling averages of PA measures and recent EORTC QLQ-C30 quality of life [QoL] score) and time-fixed (baseline PA variables, age, sex, cancer diagnosis) covariates were used to identify predictors of hospitalization. The incremental predictive value of PA measures was assessed using logistic regression models and five-fold cross validation. Results: One hundred thirty-eight patients were included in the analysis. The most common cancer diagnoses were gastrointestinal cancer (29%) and head and neck cancer (28%). Twenty-four patients (17%) were hospitalized during chemoradiotherapy. Univariate Cox regression models identified baseline step count (hazard ratio [HR] = 0.85 per 1000 steps, 95% confidence interval [CI]: 0.74-0.98, p = 0.03) and baseline peak 30-minute cadence (HR = 0.86 per 10 steps/min, 95% CI: 0.74-0.99, p = 0.03) as the most significant prognostic predictors of hospitalization. Neither baseline PS nor baseline sedentary time were significant predictors of hospitalization risk. Including both baseline step count and peak 30-minute cadence in multivariable models did not improve predictive power. During treatment, peak 30-minute cadence was identified as the most powerful dynamic predictor of short-term hospitalization risk (HR = 0.83 per 10 steps/min, 95% CI: 0.75-0.92, p &lt; 0.001). Conclusions: This study examined the relationship between a suite of PA measures and risk of hospitalization during concurrent chemoradiotherapy. Our results suggest that before treatment, daily step count average can serve as a simple and effective metric for identifying high-risk patients. During treatment, measures of peak activity may have additional utility for identifying patients in need of enhanced supportive care.

Variations in Physical Activity and Screentime According to School Format During the COVID-19 Pandemic.

Early studies indicate children's physical activity (PA) decreased during the pandemic but may vary by school format and season. We longitudinally assessed changes in PA and screentime (ST) behaviors throughout 1 year of the COVID-19 pandemic and according to changes in school format. Parents of children (5-18 years) completed a survey about school format, home characteristics, PA, and ST. Initial data were collected in November 2020 with follow-up in February, May, and August 2021. Physical activity and ST were compared by season and school format using a 4 (format) × 4 (season) repeated measures analysis of variance. Children were active for at least 60 minutes/day less often in winter (2.4 ± 0.3 days; p < .001; n = 176) than in other seasons. Longitudinal analysis (n = 61) showed that PA was highest among students attending school fully in-person and lowest among students attending remotely, though school format differences were not significant. Non-school ST did not differ by season or school format. These results suggest that changes in school format influence students' lifestyle behaviors. The impact on children's lifestyle behaviors should be considered in planning for safe, in-person operation of schools in the event of future pandemics or natural disasters.

Associations of physical activity dose and movement quality with executive functions in socioeconomically disadvantaged children aged 5–6 years

BackgroundGrowing up in areas of high deprivation can negatively impact children's movement behaviours and cognitive development. Enhancing the quantity and quality of children's movement experiences is believed to enhance cognitive development. This study investigated the association of three different modes of movement assessment, movement proficiency and divergent movement ability (collectively understood as motor competence) and PA dose with executive function in a low socio-economic demographic. Demographics, motor competence, and a combination of motor competence and physical activity were hypothesized to be significantly predictor of executive functions. MethodIn this cross-sectional study, 360 children aged 5–6 years from deprived areas were assessed using three movement assessments: wrist-worn accelerometery for physical activity dose, Test of Gross Motor Development-3 for movement proficiency, and divergent movement assessment. Executive function, including inhibitory control, working memory, and cognitive flexibility, was measured using the NIH Toolbox on an iPad. Multiple linear regression models were designed to evaluate the independent and combined association of demographics, movement competence and physical activity variables with executive function. ResultsThe regression analysis, with demographic factors only, explained 12% of EF variance (r2 = 0.12 95%CI 0.06–0.18). In addition to this demographics the model with divergent movement explained 19% of EF variance (r2 = 0.19 95% CI = 0.12–0.28), the model with movement proficiency explained 16% of EF variance (r2 = 0.16 95% CI = 0.08–0.26) and the model with PA dose explained 13% of EF variance (r2 = 0.13 95% CI = 0.07–0.20). In these models both divergent movement and proficiency were significant predictors, whilst physical activity variables were not. The final models, combining motor competence and physical activity variables, explained 24% and 23% of EF variance (r2 = 0.24 CI = 0.14–0.33 and r2 = 0.23 CI = 0.14–0.32). In these models, motor competence variables were significant predictors, and only vigorous physical activity and Euclidean Norm Minus One emerged as significant PA dose predictors. DiscussionThese findings emphasise that motor competence and physical activity variables better predict executive functions when they are combined. When considered individually both motor competence variables were significant predictors of executive function whilst physical activity variables were not. Importantly, among the two movement competence facets, divergent movement assessment exhibited the strongest association with executive function. Future interventions should consider how to facilitate both movement and cognitive development in children. Future interventions should consider both the interplay of movement quality and quantity and the importance of environments that invite children’s exploratory movement behavior.

Toward digital inclusion of older adults in e-health: a case study on support for physical activity

AbstractOlder adults are a heterogeneous population for which many e-health innovations are inaccessible. Involving older adults in user-centered design (UCD) with a specific focus on inclusive design is important to make e-health more accessible to this user group. This case study aimed to explore the feasibility of a new UCD approach aiming to minimize bias in the design phase of a digital support for older adults’ physical activity (PA). The study used mixed methods and applied UCD principles in a four-iteration design phase followed by an evaluation phase where 11 and 15 older adults participated, respectively. The users’ gender, PA level and technology experience (TE) were considered in recruitment, data analysis and prioritization of improvement efforts. In the design phase, users with different gender, PA level and TE participated and contributed with feedback, which was prioritized in the development. The adaptation included improving readability, simplifying layout and features, clarifying structure, and making the digital content more inclusive and relevant. The evaluation showed that the users had a positive experience of the prototype and could use it with some help. The study demonstrated that adopting e-health to assure digital inclusion among older adults must address several aspects. The UCD approach was feasible for amending user bias and for confirming that users of both genders and with varied PA- and TE level shaped the design. However, evaluation of the method with larger samples is needed. Moreover, further research on methods to involve digitally excluded populations in UCD is needed.