Meeting Moderate-to-vigorous Physical Activity Recommendations Research Articles

Prevalence and Sociodemographic Correlates of Meeting the 24-Hour Movement Guidelines Among Low-Income Brazilian Older Adults With Chronic Diseases.

This study examined the prevalence and sociodemographic correlates of meeting individual behavior and 24-hr movement behavior guidelines among Brazilian older adults with chronic diseases. The sample comprised 273 older adults aged ≥60years (80.2% women) with chronic diseases from Recife, Pernambuco, Brazil. Sociodemographic variables were self-reported, while 24-hr movement behaviors were assessed by accelerometry. Participants were classified as meeting (or not meeting) individual and integrated recommendations for moderate-to-vigorous physical activity (MVPA), sedentary behavior, and sleep duration. No participant met the 24-hr movement behavior guidelines, while only 8.4% met integrated MVPA/sleep recommendations. The prevalence of meeting recommendations of MVPA, sedentary behavior, and sleep was 28.9%, 0.4%, and 32.6%, respectively. Discrepancies according to sociodemographic variables on meeting MVPA recommendations existed. The findings show the need for dissemination and implementation strategies to foster adoption of the 24-hr movement behavior guidelines among Brazilian older adults with chronic diseases.

Acculturation, Physical Activity, and Metabolic Syndrome in Asian American Adults.

Asian Americans (AsAms) have a high prevalence of metabolic syndrome (MetS) and are one of the least physically active racial groups in America. The purpose of this study was to examine the relationship between MetS and moderate-to-vigorous physical activity (MVPA) among AsAm adults and whether acculturation modifies this relationship. Data were from 2,259 AsAms participating in the 2011-2016 National Health and Nutrition Examination Survey. Physical activity (PA) was self-reported as minutes of weekly MVPA. Acculturation included nativity, length of residency in America, and language preference. The International Diabetes Federation criteria was used to determine the presence of MetS. About 64.4% of AsAms did not meet the PA recommendation (MVPA ≥150 min/week). The prevalence of MetS was 39.2%. The odds of having MetS were greater among AsAms who did not meet MVPA recommendations compared with those who did meet MVPA recommendations (odds ratio [OR] = 1.5, 95% confidence interval [CI] = [1.11, 2.07]). When stratified by acculturation, this association remained statistically significant in the groups who immigrated to America more than 15 years ago and who spoke English only. MVPA reduces MetS risk in AsAm adults, especially among more acculturated AsAms. Culturally adapted programs are warranted to promote PA and adequate knowledge of disease prevention in this population.

Light-intensity and moderate-to-vigorous intensity physical activity among older adult breast cancer survivors with obesity: A narrative review.

With an aging population, rising incidence of breast cancer, improved survival rates, and obesity epidemic, there will be a growing population of older adult breast cancer survivors with obesity. This complex population, often with multimorbidity, is at risk for several poor health outcomes, including recurrence, cardiovascular disease, dementia, and diabetes, and a number of deleterious symptoms, including a worsened inflammatory profile, breast cancer- related lymphedema, mobility disability, cognitive impairment, anxiety, and depressive symptoms. A wealth of meta-analytic and randomized controlled trial evidence show that adherence to World Health Organization and 2018 United States Physical Activity guidelines-based levels of moderate-to-vigorous physical activity (MVPA) reduces risk of all-cause mortality, and improves symptoms. However, few survivors engage in recommended levels of MVPA, and symptoms related to their multimorbidity may preclude engaging in sufficient levels of MVPA. Additional research of MVPA in this population is warranted; however, understudied light-intensity physical activity (LIPA) may be a more pragmatic target than MVPA among this complex population facing extensive challenges meeting MVPA recommendations. Large benefits are likely to occur from increasing these survivors' total activity, and LIPA prescriptions may be a more pragmatic approach than MVPA to aid this transition. We present a broad, narrative review of the evidence for MVPA and LIPA in this population on an array of health outcomes across the translational science spectrum (clinical, implementation, and public health), and identify a number of directions for future research focused on understanding the potential diverse health effects of LIPA. Additional LIPA research is warranted, as LIPA prescriptions may be a pragmatic strategy to effectively promote physical activity to this complex population.

Abstract MP69: Adolescent Experiences Of Racism: Associations With Cardiovascular Disease Risk-related Behaviors In A Diverse Population-based Sample

Introduction: Racism is increasingly accepted as a driver of health inequities, but little is known about how racism impacts cardiovascular health in young people. This paper tests the hypothesis that direct experiences of interpersonal racism in adolescence are associated with traditional and emerging cardiovascular disease risk-related behaviors using cross-sectional observational data. Methods: In Project EAT 2010, 1,396 young people (mean age = 14.4 years) reported how often they were teased or harassed about their race, a form of direct interpersonal racism. Participants also reported cardiovascular disease risk-related behaviors: traditional [smoking; not meeting moderate to vigorous physical activity (MVPA) recommendations] and emerging [unhealthy weight control behaviors; binge eating]. Multivariable logistic models assessed associations of direct interpersonal racism with cardiovascular disease risk-related behaviors, controlling for known confounders. Results: About 20% (268 of 1396) of young people reported experiencing interpersonal racism directly at least a few times a year. About one in ten participants reported binge eating or smoking in the past year and about half reported engaging in at least one unhealthy weight control behavior in the past year or not meeting MVPA recommendations. In adolescence, sometimes or frequently experiencing interpersonal racism directly was associated with greater odds of reporting smoking, binge eating and unhealthy weight control behaviors (see Table 1), relative to never or rarely experiencing interpersonal racism directly. There did not appear to be a further increase between “sometimes” to “frequently” experiencing interpersonal racism directly and odds of engaging in cardiovascular disease risk-related behaviors. Conclusions: These findings support a link between experiences of racism in adolescence and cardiovascular disease risk and further emphasize the need for structural interventions to achieve cardiovascular health equity.

Physical activity and active transportation behaviour among rural, peri-urban and urban children in Kenya, Mozambique and Nigeria: The PAAT Study.

BackgroundPhysical activity (PA) is associated with numerous health benefits among children and youth. However, few studies have examined how active transportation (AT) and device-based measures of PA vary within and between countries in sub-Saharan Africa.PurposeThis cross-sectional study sought to investigate the prevalence and correlates of AT and device-measured PA among children living in urban, peri-urban and rural areas in three African countries representing Eastern, Western and Southern regions of Africa.Methods3,205 participants (53.3% girls; 46.7% boys) aged 10–12 years were recruited in Kenya, Nigeria and Mozambique. Data were collected using a child questionnaire, a parent/guardian questionnaire and PiezoRx® pedometers. ANCOVA and binary logistic regression analyses were used to examine the correlates of AT and PA while controlling for gender, age, parent education and vehicle ownership.ResultsParticipants accumulated an average of 45.6±23.5 min/day of moderate-to-vigorous physical activity (MVPA) and 11,215±4,273 steps/day. Kenyan and Mozambican children were significantly more active than their Nigerian counterparts (p<0.001). Only 23% met the MVPA guidelines of 60 min/day. 65.1% of participants engaged in AT to school (and 67.8% for the trip back home) with no gender differences. Living in a rural area, lower parent education, lower vehicle ownership and higher motorcycle ownership were associated with higher odds of AT. Other correlates of AT were country-specific. Girls accumulated less daily MVPA than boys in all countries. MVPA was positively associated with living in less urbanized areas in Nigeria and Mozambique. In Kenya, lower parental education and AT were associated with higher MVPA. Nigerian children’s daily MVPA decreased with age and the number of parent-perceived barriers to AT.ConclusionsMajority of children engaged in AT, but still failed to meet MVPA recommendations. Most correlates of AT and PA were country-specific, suggesting that strategies to encourage both behaviours should be informed by local evidence.

Moderate to vigorous physical activity and sedentary time as predictors of cognitive function in older adults with hypertension: NHANES 2011‐2014

AbstractBackgroundHypertension is associated with increased risk for cognitive decline. Lifestyle behaviors such as moderate to vigorous physical activity (MVPA) and sedentary time (ST) may mitigate this decline, though limited research on the joint association exists. The aim of the study was to examine the joint association of MVPA and ST on cognitive function by hypertension status.MethodsAdults (n=2916, ≥60yrs) from the 2011‐2014 National Health and Nutrition Examination Survey (NHANES) were assessed for their participation in MVPA (meets recommendations: ≥150min MPA and/or ≥75min MPA vs does not meet recommendations: &lt;150min MPA and &lt;75min VPA), self‐reported ST (≤7hrs ST vs &gt;7hrs ST), hypertension, and cognitive function (Digit Symbol Substitution Test [DSST]; Animal Fluency [AF] test). Weighted linear regression analyses were conducted to assess joint association of MVPA and ST on cognitive function, and test the modifying effect of hypertension status (alpha level set at 0.1) after adjustment for demographics, cardiovascular disease, diabetes, body mass index (BMI), and depression.ResultsSee Table. There were significant main effects for combined MVPA and ST on DSST (Wald F(3,30)=3.393, p=.031) and AF (Wald F(3,30)=17.33, p&lt;.001). Participants who did not meet MVPA recommendations regardless of ST had significantly worse scores on DSST compared to participants who met MVPA recommendations and reported ≤7hr ST. Participants who did not meet MVPA recommendations and had ≤7hr ST had significantly worse scores on AF. There was a significant interaction between MVPA‐ST groups and hypertension status on AF (Wald F(3,30)=3.766, p=.021), but not on DSST. Stratified analyses indicated among individuals without hypertension significance was maintained. For participants with hypertension, not meeting MVPA recommendations regardless of ST was associated with significantly worse scores.ConclusionsIn a sample of adults, meeting recommendations for MVPA was associated with better cognitive outcomes regardless of ST. Among individuals with hypertension regular MVPA regardless of ST was significantly associated with higher scores on one measure of executive function. This research highlights the added importance for individuals with hypertension to participate in the recommended amount of MVPA.

Movement behaviors associated with mental health among US military service members

ABSTRACT Compared to the general adult population, military service members experience an excess burden of mental health problems (e.g., posttraumatic stress disorder, PTSD). Physical activity, screen time, and sleep (i.e., movement behaviors) are independently associated with mental health, but their combined effects are poorly understood, particularly in military populations. We analyzed data from active component service members in the national 2018 Health Related Behaviors Survey (N = 17,166). Weighted gender-stratified logistic regression models examined the associations of meeting recommended/healthy levels of moderate-to vigorous physical activity (MVPA), screen time, and sleep duration – separately and in combination (none, some, all) – with PTSD, suicide ideation, and serious psychological distress. In both men and women, meeting sleep recommendations was associated with reduced odds of each outcome. Meeting MVPA recommendations was associated with lower odds of serious psychological distress only in men (OR = 0.76, 95% CI: 0.58–1.00). No/low screen time was associated with lower odds of suicide ideation only in women (OR = 0.66, 95% CI: 0.45–0.95). The odds of all three outcomes were lower in those who reported some or all (vs. none) recommended/healthy movement behaviors, with the lowest odds found in the “all” group, suggesting a possible dose-response relationship. Findings can help inform multiple behavior change interventions to improve service members’ psychological fitness and military readiness.

Physical activity and active recreation before and during COVID-19: The Our Life at Home study

ObjectivesTo examine the effects of COVID-19 related ‘lockdown restrictions’ on Australian's (5–75 years) physical activity recommendation achievement and active recreation participation. DesignCross-sectional online survey with self and proxy-report items (where the participant was a parent). MethodsAdults (n = 1360) and adolescents (n = 1292) reported the frequency they performed 30- or 60-min of moderate-to-vigorous physical activity (MVPA), muscle-strengthening exercises, and participation in 11 active recreation behaviours in February 2020 (pre-COVID-19) and in April/May (during lockdown restrictions). Parents also proxy-reported activity for their child (n = 147, 5–12 years). Mixed effects logistic regressions or a logistic regression (with robust sandwich estimation for variance) assessed recall differences pre- and during lockdown, and interaction by sex. ResultsCompared to February, in April/May children were less likely to meet MVPA recommendations (OR = 0.27, 95%CI = 0.12–0.64); adolescents males, but not females, were less likely to meet MVPA (OR = 0.71, 95%CI 0.43, 1.17) and both recommendations (OR = 0.12, 95%CI = 0.02, 0.79); and adults were more likely to meet MVPA (OR = 1.26, 95%CI = 1.01, 1.57) but less likely to meet muscle-strengthening exercise recommendations (OR = 0.76, 9%CI = 0.65, 0.89). Across age groups more participants reported walking, muscle strengthening exercises at home, and yoga/Pilates/stretching at home, and fewer performed informal sport practice and play, and recreational activities. ConclusionsLockdown restrictions had different effects on physical activity and active recreation among age groups and by sex. Physical activity promotion strategies that target children and adolescents, at home physical activity options, active neighbourhoods, and (re)engagement in informal sport and recreational activities post-COVID-19 are critical for (re)engaging Australians in health-enhancing behaviours.

Physical activity in out of school hours care: an observational study

BackgroundOpportunities for physical activity within out of school hours care (OSHC) are not well documented in Australia. This study explored factors associated with children (5–12 years) meeting 30 min of moderate to vigorous physical activity (MVPA) while attending OSHC in the afternoon period.MethodsA cross-sectional study, conducted in 89 OSHC services in New South Wales, Australia, serving 4,408 children. Each service was visited twice between 2018–2019. Physical activity promotion practices were captured via short interviews and System for Observing Staff Promotion of Physical Activity and Nutrition (SOSPAN). Physical activity spaces was measured (m2) and physical activity of 3,614 child days (42% girls), were collected using Acti-Graph accelerometers. Association between program practices and children accumulation of MVPA was tested using mixed effects logistic regression, adjusted by OSHC service and child.ResultsTwenty-six percent of children (n = 925) accumulated 30 min or more of MVPA. Factors associated with children reaching MVPA recommendations included: services scheduling greater amounts of child-led free play, both 30–59 min (OR 2.6, 95%CI 1.70, 3.98) and ≥ 60 min (OR 6.4, 95%CI 3.90, 10.49); opportunities for staff-led organised play of ≥ 30 min (OR 2.3, 95%CI 1.47, 3.83); and active games that engaged the majority of children (OR 1.7, 95%CI 1.11, 2.61). Children were less likely to meet MVPA recommendations if services played games with elimination components (OR 0.56, 95%CI 0.37, 0.86).ConclusionImprovements to service-level physical activity promotion practices, specifically the type of physical activity scheduled and the structure of games, may be an effective strategy to increase MVPA of children attending OSHC afterschool in NSW, Australia.

Moderate-to-Vigorous Physical Activity Is Associated With Cardiorespiratory Fitness Among Primary Schoolchildren Living in Côte d'Ivoire, South Africa, and Tanzania.

Background: Physical inactivity and low cardiorespiratory fitness (CRF) are independent cardiovascular risk factors among children, but have rarely been investigated concurrently in sub-Saharan Africa. The purpose of this study was to compare physical activity (PA) and CRF of primary schoolchildren living in Côte d'Ivoire (CI), South Africa (ZA), and Tanzania (TZ), to test sex- and age-related differences, and to examine whether PA and CRF are associated with each other.Methods: Baseline data from an ongoing cluster-randomized controlled trial were used, including 499 children from CI (Taabo, 49% girls, M = 8.0 ± 1.6 years), 1,074 children from ZA (Gqeberha, 49% girls, M = 8.3 ± 1.4 years), and 593 children from TZ (Ifakara, 51% girls, M = 9.4 ± 1.7 years). PA was assessed by accelerometry and CRF by a 20 m shuttle-run test. The data were analyzed using multi-/univariate analyses of variance and mixed linear models.Results: Most children met recommendations put forward by the World Health Organization for moderate-to-vigorous PA (MVPA) and achieved high CRF scores. In CI, 89.6% of the children met MVPA recommendations (boys: 91.7%, girls: 87.4%), whereas this rate was 76.9% in ZA (boys: 91.0%, girls: 62.4%), and 93.8% in TZ (boys: 95.5%, girls: 92.0%). Children from TZ had the highest CRF and MVPA levels, followed by children from CI and ZA. Boys had higher MVPA levels than girls, whereas girls engaged in more sedentary behavior. Sex differences were strongest in ZA. Sedentary behavior and MVPA were higher among older schoolchildren compared to their younger peers. Higher MVPA, but not sedentary behavior, was associated with better CRF.Conclusions: In all three settings, higher levels of MVPA were associated with higher CRF scores. Nevertheless, children living in the most urbanized setting (such as observed in ZA) were physically less active and had lower CRF than peers living in more rural areas (such as observed in CI and TZ). Particularly for girls, urbanization might increase the risk for insufficient MVPA, which may have negative effects on their CRF, thus negatively influencing health and well-being at later age.

P114 Screen Time and Physical Activity Patterns Among Preschoolers from Rural, Underserved Communities

<h3>Background</h3> High levels of screen time and low levels of physical activity (PA) are associated with childhood obesity. Sixty minutes or less for daily screen time and at least 180 minutes of PA, including 60 minutes of moderate-to-vigorous PA (MVPA), are current recommendations for preschoolers. The home environment, including the physical environment and parent attributes, may impact screen time and PA among children. <h3>Objective</h3> To examine whether screen time and PA levels of preschoolers relate home environment and parental attributes. <h3>Study Design, Setting, Participants</h3> The HEROs (HEalthy EnviROnments) study is a technology-based, interactive intervention to promote healthy eating and PA among preschoolers in rural Colorado. <h3>Measurable Outcomes/Analysis</h3> Data describing the home environment was collected at baseline (Fall 2019/Winter 2020) including demographics, anthropometrics, child and parent screen time, and home electronic and PA equipment availability and access. Accelerometers were used to collect 7 days of objective PA and sedentary time for children and parents. Descriptive statistics and independent samples <i>t</i> tests were conducted. <h3>Results</h3> Parent-child dyads (n = 32; 39.4% Hispanic) were included in the study. Children had low levels of MVPA (mean = 13.3 min, SD=7.5) and none met MVPA recommendations. Further, 60.6% exceeded screen time recommendations. Parents of children who met screen time recommendations were more likely to have a post-high school education (<i>t</i> = 3.063, <i>P</i> = 0.005 than those who did not meet recommendations. No group differences were noted in child or parent BMI, MVPA, sedentary time, the availability of PA equipment, number or type of screens children had access to, or parent screen time. <h3>Conclusion</h3> Screen time is high and physical activity is low among this sample of preschoolers. Given children's high engagement in screen time, future intervention efforts using digital strategies to increase PA could be undertaken.

Australian children are not meeting recommended physical activity levels at school: Analysis of objectively measured physical activity data from a cross sectional study

This study aimed to quantify, and examine grade level (Grade Kindergarten-2 vs. 3–6) and sex differences in the daily minutes of moderate-to-vigorous physical activity (MVPA) of primary school children, and the proportion of children meeting MVPA recommendations, across the school day and in break times. Consenting children in Kindergarten to Grade 6 from 12 Catholic primary schools within the Hunter region of New South Wales, Australia (February-April 2017) wore accelerometers during school hours (approx. 9am-3 pm) for five school days. Differences in student physical activity by Grade (Kindergarten-2; Grade 3–6) and sex were analysed using regression mixed modelling for the whole school day, during class time and break time. Valid data was available for 1862 students. Mean (SD) minutes of MVPA were consistently higher for Grade K-2 compared to Grade 3–6 students respectively, 37.02 (12.4) and 32.6 (12.2) across the school day; 20.4 (8.4) and 15.3 (7.6) minutes within breaks. Over the whole school day 69.7% of Grade K-2 and 54.1% of Grade 3–6 met the recommended 30 min of MVPA. Boys had higher MVPA than girls and a higher proportion of boys met MVPA recommendations than girls with 68.9% and 52.4% over whole school day and 6.43% and 0.98% respectively during break times. A large percentage of Australian children are not meeting physical activity guidelines whilst at school, with declining levels of physical activity from Grade K-2 to Grade 3–6 especially evident in girls.

Household Chores or Play Outdoors? The Intersecting Influence of Gender and School Type on Physical Activity Among Indian Adolescents.

Most Indian adolescents, particularly girls and private school students, do not engage in sufficient physical activity (PA). Current understanding of these sociodemographic differences is limited by a focus on exercise, which may not fully capture PA in developing countries. We examined how gender and school type are associated with multiple PA domains and whether associations with gender differ by school type. We randomly selected an equal number of girls and boys (ages 13-16 years) from public and private schools in Southern India (n = 395). Cross-sectional 24-hour time-use surveys measured PA, which was categorized into three domains: chores, errands, and work; play; and transportation. Negative binomial and logistic regression modeled relative differences in domain-specific PA minutes and the probability of engaging in ≥60 minutes of moderate-to-vigorous PA (MVPA), respectively, in the prior 24 hours. Girls and boys were equally likely to meet MVPA recommendations. However, girls spent twice as much active time completing chores, errands, and work (rate ratio = 1.98, 95% confidence interval = [1.32, 2.98]), while boys spent twice as much active time playing (rate ratio = 2.11, 95% confidence interval = [1.23, 3.62]). Public and private school girls spent more active time in chores, errands, and work than boys; however, gender differences were greater among public school students (p value for interaction <.05). Although comparable MVPA levels for girls and boys are beneficial for physical health, girls may gain fewer cognitive, social, and emotional benefits associated with play. Additional research may clarify why the gendered burden of household responsibilities was greater among public school students. School-based programs to engage girls in active play may help reduce inequities.

Differences between accelerometer cut point methods among midlife women with cardiovascular risk markers.

Midlife women experience elevated risk for cardiovascular disease and often receive advice to increase physical activity to mitigate this risk. Use of accelerometers to measure ambulatory physical activity requires selection of appropriate thresholds for estimating moderate-to-vigorous physical activity (MVPA), and choice of cut points may lead to meaningfully different conclusions about midlife women's physical activity (PA) engagement. This is particularly important given the recent elimination of 10-minute bout requirements for MVPA. This two-phase study examined differences between four cut point methods among midlife women with cardiovascular disease (CVD) risk. We used findings from Study 1 (exploratory) to generate hypotheses for Study 2 (confirmatory). Across studies, participants (N = 65) were midlife women with an additional CVD risk factor (eg, hypertension). Participants wore waistband accelerometers for seven days. Daily totals were calculated for minutes in light and MVPA using four common quantification methods (Freedson, Matthews, Swartz, and Troiano). Multilevel models showed meaningful differences between methods (P < 0.0001). For total (non-bouted) minutes of MVPA, Freedson and Troiano methods showed that participants barely met MVPA recommendations (30 min per day), whereas Matthews and Swartz methods showed that participants greatly exceeded this goal. As differences between methods were smaller using MVPA bouts of 10 minutes or more (though remained significant), the observed variation was due in part to small bursts of MVPA dispersed throughout the day. Findings demonstrate the need for careful consideration of PA quantification among midlife women with CVD risk, and for further investigation to determine the most appropriate quantification method. : Video Summary:http://links.lww.com/MENO/A545.

Examining the Impact of Body Satisfaction and Physical Activity Change on Postpartum Depressive Symptoms.

Relationships among moderate to vigorous physical activity (MVPA), body satisfaction, and postpartum depressive symptoms are not well understood. The purpose of this study is to examine the (1)impact of postpartum body satisfaction and changes in MVPA on postpartum depressive symptoms and (2)moderating effect of changes in MVPA over time on the relationship between postpartum body satisfaction and depressive symptoms. Participants (N = 269) self-reported body satisfaction, MVPA (prepregnancy through postpartum), and postpartum depressive symptoms. Differences in MVPA at 3 time points (prepregnancy, third trimester, and postpartum) were calculated to create change scores. Main effects and interactions (body satisfaction × MVPA change) were examined using multiple regression. A majority of the sample did not meet MVPA recommendations at all time points. All body satisfaction measures were inversely related to postpartum depressive symptoms (P = .01 to <.001). MVPA change did not predict postpartum depressive symptoms (P = .43-.90) or moderate the relationship between body satisfaction and postpartum depressive symptoms (P = .14-.94). Given the relationship between postpartum body satisfaction and depressive symptoms, intervention research should include strategies that promote positive postpartum body image; clinicians should consider screening for body dissatisfaction. Although not a predictor or moderator, pregnancy and postpartum MVPA promotion should continue, as it has numerous other benefits.

Factors of Physical Activity and Sedentary Behavior in Elderly Koreans.

Objectives: In this study, we examined factors of moderate-to-vigorous physical activity (MVPA) and sedentary behavior (SB) in elderly Koreans. Methods: We used 2015 data from the Sixth National Health and Nutrition Examination Survey. To analyze physical activity (PA), we categorized participants were into those who met MVPA recommendations (150 minutes/week of moderate PA or 75 minutes/week of vigorous PA) or those who did not. We also categorized them into high SB (620-1200 minutes/day of sitting) and low SB (30-600 minutes/day). Results: Final analyses included 1501 adults over 60 years old (mean: 69.2 ± 6.2). We performed multiple logistic regressions examining impacts of grip strength and body mass index, along with self-reports of perceived health, sleep duration, and demographics on PA and SB. We found positive associations between meeting MVPA guidelines and self-perceived health and urban living, but negative associations with sleep duration and education. A strong grip, high self-perceived health, long sleep duration (8-14 hours), and living with a partner were factors of being less sedentary. High annual income was a factor of being more sedentary. Conclusion: Our findings support efforts that develop interventions promoting active lifestyles among elderly Koreans.

Gender and age differences in the association between living arrangement and physical activity levels among youth aged 9\u201319\u2009years in Shanghai, China: a cross-sectional questionnaire study

BackgroundWe examined the correlations between living arrangement and the physical activity (PA) levels of youth aged 9–19 years while accounting for demographic factors such as age, sex, and socioeconomic status in Shanghai, China.MethodsCross-sectional analyses of data from the 2014 Physical Activity and Fitness in Shanghai China—The Youth Study was conducted. Participants were 33,213 primary (9–11-year-olds; n = 13,237), junior middle (12–14-year-olds; n = 11,157), and junior high school students (15–19-year-olds; n = 8819). Youth (boys = 49%) and their guardians were randomly sampled from 17 districts in Shanghai, China. Youths’ moderate-to-vigorous PA (MVPA) levels, information about living arrangement, and guardians’ sociodemographic factors were collected via questionnaires.ResultsOnly 17.8% of school-aged youths in Shanghai met MVPA recommendations, with significantly more boys (20.6%) meeting recommendations than girls (p < .001). Youths living in rural areas showed an overall significantly higher percentage of meeting MVPA recommendations (20.3%) than those living in urban areas (p < .001). Youths who lived with single parents showed an overall significantly lower percentage of meeting MVPA recommendations (15.3%) than those living with their grandparent(s) or with both parents (p < .001). A logistic regression analysis revealed that, among 9–11-year-olds, children who live with their grandparent(s) were less likely to meet MVPA recommendations than those who lived with both parents (boys: adjusted odds ratio (aOR) = 0.72, 95% confidence interval (CI) = 0.61–0.84; girls: aOR = 0.84, 95%CI = 0.72–0.98).ConclusionsType of living arrangement was associated with the PA of youth in Shanghai, with no significant gender difference. Youth aged 9–19 years who lived with single parents had the lowest percentage of meeting MVPA recommendations. The probability of achieving 60 min/day MVPA recommendations was significantly lower among 9–11-year-old children living with their grandparent(s) than children living with both parents; however, no such difference was observed among adolescents. Our findings suggest that living arrangement may be an important consideration for promotion of PA among youth in China.

Correlates of Light Physical Activity Among Cancer Survivors

Emerging evidence demonstrates positive health benefits of light physical activity (LPA) for cancer survivors. Yet, little research has explored modifiable factors that facilitate or hinder LPA behavior in this population. Furthermore, studies are often underpowered for conducting sub-group analyses. PURPOSE: To explore modifiable correlates of LPA among cancer survivors using a social cognitive framework, and how these correlates may differ among those engaging/not engaging in moderate-to-vigorous physical activity (MVPA). METHODS: Self-report data from the third survey of the American Cancer Society’s Studies of Cancer Survivors I (N = 1720) were analyzed. Social cognitive variables of interest reflect cognitive determinants (i.e. perceived health competence and perceived susceptibility to cancer recurrence) and environmental determinants (i.e. healthcare provider support, perceived social support, and unsupportive partner behaviors). The Leisure Time Exercise Questionnaire was used to create four LPA categories (0, 1-59, 60-119, and 120+ minutes/week). Ordinal regressions using forced entry were conducted, stratified by MVPA status (0 minutes of MVPA, ≥ 1 min MVPA). Models were adjusted for relevant covariates (i.e., demographic, cancer-related, health-related variables), missing data bias was examined, and sensitivity analyses were conducted to examine the robustness of the results. RESULTS: Among cancer survivors reporting no MVPA (n = 747), greater provider support for PA (adjusted OR [aOR] = 1.49, p = .03), greater perceived health competence (aOR = 1.44, p = .01), and greater unsupportive partner behaviors (aOR = 1.06, p = .03) were significantly correlated with higher LPA. No constructs were correlated with LPA among cancer survivors already engaging in MVPA (n = 973). Missing data bias was small (Cramer’s V/Phi < 0.1). Results were similar in unadjusted analyses, and when stratifying by insufficient and meeting MVPA recommendations. CONCLUSIONS: The utility of a social cognitive framework in explaining LPA among cancer survivors who do not engage in any MVPA was supported. Interventions may be more efficacious by incorporating healthcare provider support, improving health competence, and improving interpersonal skills that address unsupportive partners.

Associations between perceived social and physical environmental variables and physical activity and screen time among adolescents in four European countries.

Associations between the perceived social and physical environment and self-reported moderate-to-vigorous physical activity (MVPA) and screen time (ST) were examined among adolescents in four European countries. Representative samples were surveyed with standardised methodologies. Associations between environmental variables and meeting MVPA recommendations and tertiles of ST were tested in gender-specific logistic regression models. Moderation by country and country-specific relationships were also examined. The most consistent findings across countries were found for the significant associations between neighbourhood social environment and MVPA in both boys and girls. Significant associations with the physical environment varied more between countries and by gender. The most consistent negative associations with ST were found for the social environmental variable of having parental rules for spending time outside the home. The present findings provided evidence for the generalisability of the associations between environmental correlates and MVPA across four European countries. The findings show clear differences in correlates for MVPA and ST. Further research is needed to better understand the unique aspects of the social and physical environment which explain each of the two behaviours.

Physical activity among Chinese school-aged children: National prevalence estimates from the 2016 Physical Activity and Fitness in China—The Youth Study

PurposeThis study was to present national estimates of participating in moderate-to-vigorous physical activity (MVPA) and adherence to the recommendations of 60 min/day of MVPA among Chinese school-aged children and to assess demographic differences in MVPA. MethodsCross-sectional analyses of data from the 2016 Physical Activity and Fitness in China—The Youth Study. Participants were 90,712 primary, junior middle, and junior high school children (boy: 47%; girl: 53%), recruited from 1204 rural and urban schools across 32 administrative provinces and regions in the Mainland of China. Main outcomes were (a) average MVPA minutes per day in the previous 7 days by self-reports and (b) percentage meeting MVPA recommendations. ResultsAverage MVPA time was 45.4 min/day, with boys having more MVPA (47.2 min/day) than girls (43.7 min/day) overall and across the 3 school grade categories. About 30% of participants met MVPA recommendations, with a higher percentage of boys (32%) than girls (28%) overall and across the 3 grades categories. Urban school children outperformed rural children in terms of MVPA time. Overall, boys were more likely to meet MVPA recommendations (adjusted odds ratio (aOR) = 1.19, 95% confidence interval (CI): 1.16–1.22) compared with girls; children in higher grades (junior middle (aOR = 0.92, 95%CI: 0.87–0.98) and junior high (aOR = 0.59, 95%CI: 0.53–0.66)) were less likely to meet recommendations compared with primary school children. The odds of meeting recommendations did not differ between urban and rural children (p = 0.07), but urban boys were found to be more likely to meet recommendations compared with rural boys (aOR = 1.14, 95%CI: 1.06–1.19). ConclusionOverall, the average MVPA minutes per day among Chinese school-aged children is low, and less than one-third of them meet MVPA recommendations. These results were most evident among junior middle and junior high school children and those living rural areas.