Children's Daily Physical Activity Research Articles

Should organized sport characteristics be considered as a strategy for meeting physical activity guidelines in children?

A clearer understanding of the relationships between specific sport context with overall physical activity (PA) and sedentary time (ST) may contribute to the development of more accurate preventive strategies to increase children's engagement in PA. This study aimed to examine how different organized sports contributed to children's daily PA and ST. PA was measured for seven days via accelerometers, in 410 children aged 6-10 years (49.8% boys). Of those, 332 (53.0% boys) were engaged in an organized sport and were further considered for statistical analyses. Parents reported children's sport participation (e.g. which sport, number of times per week, duration). The sports were classified into: indoor vs. outdoor; individuals vs. team; combat vs. individual aesthetic vs. racing vs. invasion. Children's height and weight were objectively collected. Multiple one-way analyses of covariance were used to examine the effects of sport characteristics on PA and ST. A linear regression, adjusted for children's sex, age, body mass index and father's educational level, determined the relationship between being involved in multiple PA and sedentary behaviours with Moderate to Vigorous PA (MVPA) levels. Although engaged in an organized sport, only 30% of the children achieved the PA recommendations. Sport (compared with active commute and active play) was the best contributor to daily MVPA. Outdoor sports (vs. indoor) contributed the most to vigorous PA (VPA) and MVPA. Team sports (vs. individual) were significantly associated with lower ST. Children in combat sports accumulated more VPA and MVPA, while those in racing sports showed a higher ST. Sport participation alone does not guarantee children will reach the PA guidelines, and the type of sport can influence children's PA levels. Gender-stereotypes in sports may prevent girls from achieving their 60 minutes of MVPA daily.

Interventions in outside-school hours childcare settings for promoting physical activity amongst schoolchildren aged 4 to 12 years.

Interventions in outside-school hours childcare settings for promoting physical activity amongst schoolchildren aged 4 to 12 years.

Physical Activity and Sedentary Behavior of Children in Afterschool Programs: An Accelerometer-Based Analysis in Full-Day and Half-Day Elementary Schools in Germany.

Background: Regular physical activity (PA) and reduced sedentary behavior (SB) are positively related to children's health and considered as pillars of a healthy lifestyle. Full-day schools with their afterschool programs (ASPs) have an impact on children's daily PA and SB. Studies investigating PA and SB in ASPs, which compare PA and SB between the organizational forms full-day and half-day schools, are rare. The aim of this study is to describe elementary school children's PA and SB during ASPs and to compare the results to other time periods of the day, e.g., teaching hours and leisure time. Additionally, PA and SB of children in full-day and half-day schools are compared. Further, relevant factors influencing the achievement of the World Health Organization's (WHO's) PA guidelines for children, e.g., time spent in ASPs, are investigated.Methods: PA and SB of 332 German students (n = 198 full-day school children; n = 134 half-day school children) from 11 different elementary schools were measured via accelerometry for 5 consecutive days within one school week in 2017. PA and SB during ASPs and other times of the day were analyzed via one-way and factorial ANOVA, correlation, and logistic regression.Results: Children attending full-day schools show the highest percentage of moderate-to-vigorous PA (MVPA) (13.7%) and the lowest percentage of SB (49.5%) during ASPs, in comparison with teaching hours and leisure time. In the afternoon hours, full-day school children show 20 min less SB than half-day school children. Children spending more time in ASPs obtain significantly more SB (r = 0.23) and less MVPA (r = −0.15). Further, they less likely reach WHO's PA guidelines odds ratio (OR = 0.98).Conclusion: Peers and the choice as well as offer of extracurricular activities promote PA in ASPs. Media availability leads to higher SB in leisure time. ASPs help to be more active and less sedentary. Time spent in ASPs should be limited, so that full-day school children still have the possibility to join other PA offers in leisure time. ASP time should contain a certain minimum amount of MVPA in line with ASP guidelines.

Home and school environmental correlates of childhood BMI

BackgrouandActive commuting to school can be a substantial opportunity to provide the necessary daily physical activity for children and to counteract childhood obesity. This paper examines the associations of urban form, in general, and street network design, in particular, with body mass index (BMI) in children aged between 12 and 16, controlling for socio-economic features (gender, educational attainment, income, and auto ownership) and daily physical activity (access mode to/from school and walking behaviour). MethodsData were drawn from questionnaires conducted in 20 elementary schools located in the Anatolian part of İstanbul, Turkey. Randomly selected 6th, 7th, and 8th grade students (N = 1784) completed questionnaires regarding their commuting modes to/from school while their parents (N = 1118) completed questionnaires about their socio-economic characteristics and their children's daily physical activity. Each student's BMI was calculated by measured height and weight data. Home- and school-environments (800-and 1600-m buffers around the respondent and school) were evaluated through GIS-based land-use data and segment-based street connectivity measures. Selected street segments within school-environments were also audited with regard to pedestrian environment characteristics. ResultsFindings indicate that children who actively commuted to/from school had lower BMIs than non-active commuters. More importantly, it is shown that increased street network connectivity measured at the segment-level is significantly associated with reduced BMI in school children. In fact, connectivity measures appear to be the strongest correlates of BMI. ConclusionsThis study provides important evidence for planners, urban designers, and policy makers on the significance of built environment, in general, and street network configuration, in particular, within home- and school-environments. One rule of thumb would be to design a well-connected street network with relatively denser connections and reduced direction changes within the neighbourhood – not only within a couple of blocks of homes and schools but also within their larger fabric (800–1600 mt buffers).

Effects of a Preschool Intervention on Physical Activity and Body Composition

To investigate the effect of a preschool physical activity intervention program delivered in licensed childcare settings, with or without a parent-facilitated home component, on children's daily physical activity, sedentary time, and body composition. For this cluster randomized controlled trial, 18 childcare centers were randomly allocated in equal numbers to the typical curriculum comparison group, childcare intervention alone (CC), or childcare intervention with parental involvement. Accelerometers were used to asses physical activity and sedentary time, and body composition was measured by bioelectrical impedance. Linear mixed model regression analyses showed no differences between the CC, the childcare intervention with parental involvement, and the comparison groups in changes from baseline to 6 months in total physical activity (P for time × group interaction = .665) or moderate-to-vigorous physical activity (P for time × group interaction = .164) when adjusted for baseline physical activity levels. Furthermore, no group differences were found for changes in light physical activity, sedentary time, or anthropometric variables. An affordable and easily scalable preschool intervention program delivered in licensed childcare settings, with or without the addition of a parent-driven home physical activity promotion, seems to have no significant effect on physical activity, sedentary time, or body composition. ISRCTN: ISRCTN94022291.

Pediatrician prescriptions for outdoor physical activity among children: A pilot study.

Research indicates that promoting time spent in the outdoors and outdoor physical activity increases children's daily physical activity and improves health. One method showing promise is doctor prescriptions for outdoor physical activity for children; however, no empirical evidence currently exists on prescriptions for children's outdoor physical activity. A pilot study was conducted at one pediatric practice in western North Carolina during 2015 to test the feasibility and potential effectiveness of conducting an outdoor physical activity prescription program for children aged 5–13 years. Three pediatricians wrote prescriptions for children (n = 38), discussed benefits of outdoor physical activity, and provided information packets to parents on nearby places for physical activity. Parents of patients of five pediatricians served as control (n = 32). Prior to seeing a pediatrician, parents completed a baseline survey that asked height and weight, assessed their views of children's physical activity, and their personal and child's physical activity/sedentary behaviors. A nurse measured children's height and weight. Parents were emailed one-month and three-month follow-up surveys that asked the questions listed above. Changes in children's physical activity, outdoor physical activity, time spent in the outdoors, and sedentary activities were not significant between intervention and control groups. About half of parents (49%) viewed prescriptions as beneficial for their children and most used the intervention materials at home (70%). A larger study is needed to assess whether prescriptions increase children's physical activity. A critical examination of the intervention, pilot study design, and suggestions for a larger future study are provided.

Associations between built environment and physical activity of 7–8-year-old children. Cross-sectional results from the Lithuanian COSI study

Background and aimResearch shows that regular engagement in physical activity in childhood is associated with multiple physical and psychosocial health benefits. The data on associations between children physical activity level and built environment in Lithuania are limited. The built environment is one of many variables thought to affect children physical activity level. But consequently there is growing interest in how physical environment influences physical activity of school age children. The aim of this paper is to evaluate associations between physical activity of primary school age children and built environment (road safety, travel distance, playgrounds, etc.) in Lithuania. Materials and methodsData were obtained participating in the WHO European Childhood Obesity Surveillance Initiative (COSI). The study protocol was granted ethical approval from Lithuanian Bioethics Committee (No. 6B-10-02). Parents/guardians provided written informed consent. A cross-sectional study was carried out in 2013. A multilevel sampling method was employed for composing a national representative sample. The representing data were collected by means of standardized questionnaires, which were filled out by 3802 parents of the selected first-formers. ResultsThe mean age of the first-formers was 7.3 years (SD 0.5). More than half (62.2%) of parents stated that roads to schools were safe; most (78.7%) of adults notified that children had where to play and exercise in their living area. Place of residence of family and recreation areas in living environment were significant predictors of children's daily physical activity and possibility to attend sport or dancing clubs. ConclusionsResults from the national survey of 7–8-year-old children of Lithuania reveal that urban living area of families, availability of playgrounds and recreational facilities were associated with higher possibilities of children to be sufficiently physically active.

Objectively measured physical activity in Danish after-school cares: Does sport certification matter?

Inactivity and more sedentary time predominate the daily activity level of many of today's children. In Denmark, certified sport after-school cares have been established in order to increase children's daily physical activity (PA) level. This cross-sectional study aimed to investigate the activity level among participants in certified sport after-school cares vs regular after-school cares. The study was carried out in 2011 in 10 after-school cares (5 sport/5 regular) throughout Denmark, whereof 475 children aged 5-11 years participated. PA level was assessed using Actigraph GT3X and GT3X+ activity monitors worn by the children for at least 8 consecutive days. Anthropometry and cardiorespiratory fitness were measured as well. A multivariate regression analysis was carried out to check for the differences in the PA level across the two care systems. However, there did not appear to be any differences in overall PA or in time-specific day parts (e.g., during after-school care). The activity levels were quite similar across after-school cares and were mutually high during time spent in the care facility.

The influence of the built environment on outcomes from a "walking school bus study": a cross-sectional analysis using geographical information systems.

Active commuting to school increases children's daily physical activity. The built environment is associated with children's physical activity levels in cross-sectional studies. This study examined the role of the built environment on the outcomes of a "walking school bus" study. Geographical information systems was used to map out and compare the built environments around schools participating in a pilot walking school bus randomised controlled trial, as well as along school routes. Multi-level modelling was used to determine the built environment attributes associated with the outcomes of active commuting to school and accelerometer-determined moderate-to-vigorous physical activity (MPVA). There were no differences in the surrounding built environments of control (n = 4) and intervention (n = 4) schools participating in the walking school bus study. Among school walking routes, park space was inversely associated with active commuting to school (β = -0.008, SE = 0.004, P = 0.03), while mixed-land use was positively associated with daily MPVA (β = 60.0, SE = 24.3, P = 0.02). There was effect modification such that high traffic volume and high street connectivity were associated with greater moderate-to-vigorous physical activity. The results of this study suggest that the built environment may play a role in active school commuting outcomes and daily physical activity.

Plenary conference: Keys to successful physical activity during childhood

Plenary conference: Keys to successful physical activity during childhood

Associations between daily physical activity and executive functioning in primary school-aged children.

While there is some evidence that aerobic fitness is positively associated with executive functioning in children, evidence for a relation between children's daily physical activity and their executive functioning is limited. The objective was to examine associations between objectively measured daily physical activity (total volume, sedentary behavior, moderate to vigorous physical activity) and executive functioning in children. Cross-sectional. Eighty primary school children (36 boys, 44 girls) aged 8-12 years old participated in the study. Physical activity was measured using accelerometers. Executive functions measured included inhibition (Stroop test), working memory (Visual Memory Span test), cognitive flexibility (Trailmaking test), and planning (Tower of London). Total volume of physical activity, time spent in sedentary behavior and moderate to vigorous physical activity were calculated and related to performance on executive functioning. More time spent in sedentary behavior was related to worse inhibition (r = -0.24). A higher total volume of physical activity was associated with better planning ability, as reflected by both a higher score on the Tower of London (r = 0.24) and a shorter total execution time (r = -0.29). Also, a significant moderate correlation was found between time spent in moderate to vigorous physical activity and the total execution time of the Tower of London (r = -0.29). Children should limit time spent in sedentary behavior, and increasing their total physical activity. Total volume of physical activity, which consisted mostly of light intensity physical activity, is related to executive functioning. This opens up new possibilities to explore both the quantity and quality of physical activity in relation to cognition in children.

A cross-sectional examination of socio-demographic and school-level correlates of children's school travel mode in Ottawa, Canada.

BackgroundActive school transport (AST) is an important source of children’s daily physical activity (PA). However, decreasing rates of AST have been reported in multiple countries during the last decades. The purpose of the present study was to examine the socio-demographic and school-level correlates of AST.MethodsA stratified sample of children (N = 567, mean age = 10.0 years; 57.8% female) was recruited in the Ottawa area. Four sources of data were used for analyses: 1) child questionnaire including questions on school travel mode and time; 2) parent questionnaire providing information on household socio-demographic characteristics; 3) school administrator survey assessing school policies and practices pertaining to PA; and 4) school site audit performed by the study team. Generalized linear mixed models were used to identify socio-demographic and school-level correlates of AST while controlling for school clustering.ResultsIndividual factors associated with higher odds of AST were male gender (OR = 1.99; 95% CI = 1.30-3.03), journey time <5 minutes vs. >15 minutes (OR = 2.26; 95% CI = 1.17-4.37), and 5–15 minutes vs. >15 minutes (OR = 2.27; 95% CI = 1.27-4.03). Children were more likely to engage in AST if school administrators reported that crossing guards were employed (OR = 2.29; 95% CI = 1.22-4.30), or if they expressed major or moderate concerns about crime in the school neighbourhood (OR = 3.34; 95% CI = 1.34-8.32). In schools that identified safe routes to school and where traffic calming measures were observed, children were much more likely to engage in AST compared to schools without these features (OR = 7.87; 95% CI = 2.85-21.76). Moreover, if only one of these features was present, this was not associated with an increased likelihood of AST.ConclusionThese findings suggest that providing crossing guards may facilitate AST. Additionally, there was a synergy between the identification of safe routes to school and the presence of traffic calming measures, suggesting that these strategies should be used in combination.

Parental education and physical activity in pre‐school children

The purpose of this study was to objectively assess pre-school children's total physical activity (TPA) patterns and compliance with guidelines and to examine differences relative to parental education. The sample consisted on 509 healthy pre-school children, aged 3-6 years recruited from kindergartens located in the metropolitan area of Porto, Portugal. The PA was assessed for 7 consecutive days by accelerometry. For TPA, we followed the guidelines of the National Association for Sport and Physical Education (NASPE) (children who spent at least >120 min per day in active play). For TPA, we calculated the proportion of children who spent at least >120 min per day in active play and moderate-to-vigorous physical activity (MVPA), we calculated the proportion of children who spent at least >60 min per day in active play. Parental education was analysed according to the Portuguese education system. Children with parents in the highest education level were less active than children from low and middle education level (P ≤ 0.001) in all patterns of PA (week and weekend). Regarding TPA during the week we found that the majority of children from low and middle parental education meet the NASPE guidelines. On the other hand, more than half the children from high parental education did not meet these recommendations (P ≤ 0.001) and MVPA recommendations (P ≤ 0.05). In both recommendations, children from low parental education were twice more likely to meet the recommendations compared with children belonging to high parental education. Parent education was negatively associated with children's daily physical activity patterns and compliance with guidelines.

Feasibility of accelerometers for measuring children's daily physical activity

Understanding physical activity is essential in the fight against child obesity. Certain accelerometers may be more useful in assessing this variable in children; easier to wear devices may facilitate better compliance and measurement over longer time periods. The objectives of this study were to a) compare children's acceptability of various accelerometers and b) compare their research utility. Children 7–10 y (n=25) were recruited within Yolo County, CA to test each of three accelerometers; the Philips Actical™ (worn on hip), the SenseWear BodyMedia™ (upper arm) and the Polar Active™ (wrist). Each week children received a device to wear over 5 continuous days. Parents were asked to note device removals. After each use, children and parent each completed a structured interview with trained staff. Upon completion, children were asked to place the devices in order from most to least preferred. The Polar Active was most accepted by children and useful to researchers in providing data on activity intensity levels. This device also engaged children with real time feedback on activity achievements. These findings will aid researchers in choosing measurement tools for children's physical activity.Grant Funding Source : Foods for Health Institute

Physical Activity of Children Attending Afterschool Programs: Research- and Practice-Based Implications

Afterschool programs (3PM-6PM; ASPs) are positioned to play a vital role in the improvement of children's daily physical activity. Recent guidelines specify that children should accumulate 4600 steps per day while attending an ASP. The extent to which ASPs currently meet this goal and how many steps per day children naturally accumulate within the ASP setting is unknown. The purpose of this study was to describe the pedometer-determined physical activity of a large sample of children attending a diverse range of ASPs and evaluate the extent to which ASPs are meeting current physical activity guidelines. Children (N=934, 51% girls, average 8.2 years; range 4-14 years) enrolled across 25 ASPs wore Walk4Life MVPa pedometers (number of steps accumulated, time spent active [hours:minutes:seconds]) up to 4 days. Data were collected in fall/spring 2010-2011 and analyzed in summer 2011. On average, children attended ASPs for 125 minutes per day, accumulated 2944 steps per day, and spent approximately 26.6 minutes per day in physical activity. Only 16.5% of the 1819 daily observations met the 4600 steps per day guideline. No differences in steps per day, minutes per day in physical activity, or demographics were observed among children measured a single day versus 2, 3, or 4 days. Based on current practice, children would need to spend approximately 3.4 hours per day at an ASP to reach 4600 steps per day. Activity levels in ASPs are well below recommendations. Substantial effort is needed to identify strategies ASPs can employ to ensure children are sufficiently active.

Predisposed to participate? The influence of family socio-economic background on children's sports participation and daily amount of physical activity

From a Bourdieu-inspired understanding of how personal resources (‘capitals’) enable certain practices in certain contexts, the links between families' cultural, social and economic capitals, and children's daily physical activity were investigated in 500 suburban Danish schoolchildren using questionnaire data and accelerometer measures. Family socio-economic position (SEP) was found to be positively associated with children's participation in organized sport, which could be explained by differences in family capitals. By contrast, this study found no relationship between families' SEP and the amounts of general physical activity in children. This reflected the tendencies for club-organized sport to contribute a relatively small amount to the overall amount of physical activity in children, and for children of low SEP to be equally active in other settings such as school-breaks, day care and neighbourhood playgrounds.

Examining physical activity and inactivity in 9–12 years old children

Information about children's daily physical activity in Eastern-Europe is essential because of the increasing prevalence in overweight and obesity. Sixty-three children (age=11.16 ± 1.10 years; 33 boys and 30 girls) from two public elementary schools had their physical activity objectively measured using uni-axial accelerometer every 5 seconds for five consecutive days (3 weekdays, 2 weekend days). After data cleaning, 10 children were excluded from database. There were no significant differences in boys' and girls' BMI (17.6 ± 2.2 vs. 17.1 ± 2.4) and BF% (18.0 ± 5.2 vs. 19.4 ± 5.0). Children engaged in more sedentary, light, moderate, and vigorous physical activity and had higher counts per minute during weekdays compared to weekend days. There were no sex differences in moderate to vigorous physical activity (87.6 ± 22.4 vs. 93.5 ± 20.6 min and 53.6 ± 21.3 vs. 59.4 ± 22.0 min) during weekday and weekend days. Data indicated that 96% of the girls and 92% of the boys met the international physical activity guideline for children of 60 minutes of MVPA, on weekdays.

Five-year changes in school recess and lunchtime and the contribution to children's daily physical activity

ObjectiveTo investigate the longitudinal changes in children's recess and lunchtime physical activity levels and in the contribution of recess and lunchtime to daily physical activity levels over 5 years among...

Parent influences on preschoolers’ objectively assessed physical activity

The purposes of this study were to examine the relationship between accelerometer-derived physical activity (PA) in preschoolers and their parents, and to investigate other potential child and parental associates of child PA. Families of children aged 2–5 yrs were recruited in Auckland, New Zealand, from October 2006 to July 2007. Consenting children and parents had their height, weight, and waist circumference measured and were asked to wear accelerometers over 7 consecutive days, measuring PA in 15 s epochs. Accelerometer data were gathered from 78 children, 62 mothers and 20 fathers over a median of 6.5–7 days, and converted to estimated daily PA rates for each individual using negative binomial generalised estimating equation (GEE) modelling. Potential associates of children's daily PA rates were then assessed using normal GEE models with exchangeable correlation structures. After taking account of all factors in the final multivariable model, parental PA rates (coefficient 0.09, 95% CI 0.03, 0.16, P = 0.01) and child age (coefficient 0.11, 95% CI 0.01, 0.21, P = 0.03) were the only factors significantly associated with child PA rates. Younger children may stand to benefit from PA intervention, and encouraging parental involvement in preschool PA interventions may be useful for increasing PA levels in young children. More work in this field is needed to corroborate these findings, improve generalisability, and determine causality.

The effect of multicolor playground markings on children's physical activity level during recess

Background. British children do not meet daily physical activity recommendations, and as yet no sustainable intervention has been reported to address their sedentary lifestyle. The purpose of this investigation was twofold: First, to examine whether painting playgrounds with multicolored markings would increase the percent of recess time spent in moderate to vigorous physical activity (MVPA) and vigorous physical activity (VPA) in girls and boys and second to quantify the contribution recess makes to national recommendations for young people's physical activity. Methods. MVPA and vigorous physical activity (VPA) were measured using short wave heart rate telemetry. Physical activity levels were compared before and after playgrounds were painted in 4 intervention schools and compared to 4 matched schools with unmarked playgrounds. Schools were situated in areas of deprivation. Ninety-nine children completed the study. Results. A significant interaction (group × time) was evident for MVPA and VPA. Time spent in MVPA and VPA increased significantly in intervention schools as a result of playground painting. Boys were more active than girls, and activity decreased with age, but neither difference reached significance. Conclusion. Multicolor playground markings can be a low-cost method of increasing children's daily physical activity levels in the short term. If these increases were sustained, then school playgrounds with multicolor markings would make a valuable contribution to physical activity recommendations for young people.