Physical activity and adiposity in preschool children: The Barwon Infant Study

The aim of this investigation was to study the relationships between physical activity, motor ability, and school readiness in 6-yr.-old children. In total, 294 healthy children from Tartu were studied (161 boys and 133 girls). The physical activity of children was reported by parents and teachers using the questionnaire of Harro. The motor ability of children was evaluated using various tests from the Eurofit test battery as well as the 3-min. endurance shuttle run test. The Controlled Drawing Observation test was used as a predictor of school readiness and development of mental abilities. Indoor physical activities predicted 19–25% of total variance in motor scores for these preschool children. Motor ability tests, which demand children's total attention and concentration, appear related to the chosen measures of school readiness.

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Seasonal and daily variation in physical activity among three-year-old Finnish preschool children

Early Child Development and Care ◽

10.1080/03004430.2013.804070 ◽

2013 ◽

Vol 184 (4) ◽

pp. 589-601 ◽

Cited By ~ 14

Author(s):

Anne Soini ◽

Tuija Tammelin ◽

Arja Sääkslahti ◽

Anthony Watt ◽

Jari Villberg ◽

...

Keyword(s):

Physical Activity ◽

Preschool Children ◽

Daily Variation

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Association between objectively measured body composition, sleep parameters and physical activity in preschool children: a cross-sectional study

BMJ Open ◽

10.1136/bmjopen-2020-042669 ◽

2021 ◽

Vol 11 (1) ◽

pp. e042669

Author(s):

Justyna Wyszyńska ◽

Piotr Matłosz ◽

Muhammad Asif ◽

Agnieszka Szybisty ◽

Paweł Lenik ◽

...

Keyword(s):

Physical Activity ◽

Body Composition ◽

Preschool Children ◽

Muscle Mass ◽

Sleep Duration ◽

Cross Sectional Study ◽

Sectional Study ◽

Cross Sectional ◽

Sleep Parameters ◽

Objectively Measured

ObjectiveAssociations between self-reported sleep duration and obesity indices in children are well recognised; however, there are no studies on associations between objectively measured other sleep parameters and physical activity with body composition in preschoolers. Therefore, the aim of this study was to determine the associations between sleep parameters and moderate-to-vigorous physical activity (MVPA) with body composition indices in preschoolers using objective measures.DesignA cross-sectional study.ParticipantsThe study group consisted of 676 children aged 5–6 years, who were enrolled in kindergartens in the 2017/2018 school year.Outcome measuresSleep parameters and MVPA were measured using accelerometers for 7 days. Bioelectrical impedance analysis was used to estimate body composition.ResultsSleep duration and sleep efficiency were inversely associated with body fat percentage (BFP) (β=−0.013 and β from –0.311 to −0.359, respectively) and body mass index (BMI) (β from −0.005 to −0.006 and from −0.105 to –0.121, respectively), and directly associated with fat-free mass (FFM) (β from 0.010 to 0.011 and from 0.245 to 0.271, respectively) and muscle mass (β from 0.012 to 0.012 and from 0.277 to 0.307, respectively) in unadjusted and adjusted models. BFP was inversely associated with MVPA and positively associated with number of awakenings and sleep periods. Number of sleep periods was inversely associated with FFM, and positively with BMI and muscle mass. Correlation matrix indicated significant correlation between BFP, FFM and muscle mass with sleep duration, sleep efficiency, number of sleep periods and MVPA.ConclusionsPeriodic assessment of sleep parameters and MVPA in relation to body composition in preschool children may be considered, especially in those who are at risk for obesity.

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Understanding the influence of 24-hour movement behaviours on the health and development of preschool children from low-income South African settings: the SUNRISE pilot study

South African Journal of Sports Medicine ◽

10.17159/2078-516x/2020/v32i1a8415 ◽

2020 ◽

Vol 32 (1) ◽

pp. 1-7 ◽

Cited By ~ 3

Author(s):

Catherine Draper ◽

Simone A Tomaz ◽

Caylee J Cook ◽

Sasha S Jugdav ◽

Candice Ramsammy ◽

...

Keyword(s):

Physical Activity ◽

Preschool Children ◽

Pilot Study ◽

Sedentary Behaviour ◽

South African ◽

Motor Skills ◽

Low Income ◽

Screen Time ◽

Early Years ◽

Gross Motor

Background: The International Study of Movement Behaviours in the Early Years, SUNRISE, was initiated to assess the extent to which young children meet movement behaviour guidelines (physical activity, sedentary behaviour, screen time, sleep). Objective: The South African SUNRISE pilot study assessed movement behaviours in preschool children from two low-income settings, and associations between these movement behaviours, adiposity, motor skills and executive function (EF). Methods: Preschool child/parent pairs (n = 89) were recruited from preschools in urban Soweto and rural Sweetwaters. Height and weight were measured to assess adiposity. Physical activity was assessed using accelerometers while sedentary behaviour, screen time and sleep were assessed via parent report. Fine and gross motor development were measured using the Ages and Stages Questionnaire-3, and EF was assessed using the Early Years Toolbox. Results: The proportion of children meeting the physical activity guideline was 84% , 66% met the sleep guideline ,48% met the screen time guideline , and 26% met all three guidelines. Rural children were more active, but spent more time on screens compared to urban children. Most children were on track for gross (96%) and fine motor (73%) development, and mean EF scores were in the expected range for all EF measures. EF was negatively associated with screen time, and gross motor skills were positively associated with physical activity. Conclusion: The South African SUNRISE study contributes to the growing literature on 24-hour movement behaviours in SA preschool children, and highlights that these behaviours require attention in this age group.

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Sleep and BMI in South African urban and rural, high and low-income preschool children

BMC Public Health ◽

10.1186/s12889-021-10591-5 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Dale E. Rae ◽

Simone A. Tomaz ◽

Rachel A. Jones ◽

Trina Hinkley ◽

Rhian Twine ◽

...

Keyword(s):

Physical Activity ◽

Preschool Children ◽

South African ◽

Low Income ◽

Urban Environments ◽

Z Score ◽

Cross Sectional ◽

Rural And Urban ◽

Sleep Parameters ◽

Z Scores

Abstract Background The extent to which income setting or rural and urban environments modify the association between sleep and obesity in young children is unclear. The aims of this cross-sectional observational study were to (i) describe and compare sleep in South African preschool children from rural low-income (RL), urban low-income (UL) and urban high-income (UH) settings; and (ii) test for associations between sleep parameters and body mass index (BMI). Methods Participants were preschoolers (5.2 ± 0.7y, 49.5% boys) from RL (n = 111), UL (n = 65) and UH (n = 22) settings. Height and weight were measured. Sleep, sedentary behaviour and physical activity were assessed using accelerometery. Results UL children had higher BMI z-scores (median: 0.39; interquartile range: − 0.27, 0.99) than the UH (− 0.38; − 0.88, 0.11) and RL (− 0.08; − 0.83, 0.53) children (p = 0.001). The UL children had later bedtimes (p < 0.001) and wake-up times (p < 0.001) and shorter 24 h (p < 0.001) and nocturnal (p < 0.001) sleep durations than the RL and UH children. After adjusting for age, sex, setting, SB and PA, for every hour less sleep obtained (24 h and nocturnal), children were 2.28 (95% CI: 1.28–4.35) and 2.22 (95% CI: 1.27–3.85) more likely, respectively, to belong to a higher BMI z-score quartile. Conclusions Shorter sleep is associated with a higher BMI z-score in South African preschoolers, despite high levels of PA, with UL children appearing to be particularly vulnerable.

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Association between Water and Energy Requirements with Physical Activity and Fat-Free Mass in Preschool Children in Japan

Nutrients ◽

10.3390/nu13114169 ◽

2021 ◽

Vol 13 (11) ◽

pp. 4169

Author(s):

Yosuke Yamada ◽

Hiroyuki Sagayama ◽

Jun Yasukata ◽

Akiko Uchizawa ◽

Aya Itoi ◽

...

Keyword(s):

Physical Activity ◽

Preschool Children ◽

Exercise Duration ◽

Step Count ◽

Fat Free Mass ◽

Energy Requirements ◽

Adequate Intake ◽

Water Turnover ◽

Metabolic Equivalents ◽

Vigorous Intensity

Water and energy are essential for the human body. The doubly labeled water (DLW) method measures water turnover (WT) and total energy expenditure (TEE), which serves as a benchmark for the adequate intake (AI) of water and estimated energy requirements (EER). The objective of the current study was to examine the association of WT and TEE with physical activity and body composition in Japanese preschool children. We included 41 preschool children (22 girls, 19 boys) aged 3–6 in this study. WT, TEE, and fat-free mass (FFM) were obtained using DLW. Physical activity was measured using a triaxial accelerometer and categorized as light (LPA; 1.5–2.9 Metabolic equivalents, METs) and of moderate-to-vigorous intensity (MVPA; ≥3.0 METs). Exercise duration (Ex) was defined as ≥4.0 METs of physical activity. WT and TEE moderately positively correlated with Ex, but not with LPA. WT moderately positively correlated with BW and FFM while TEE strongly. We established predictive equations for WT and TEE using body weight (BW), FFM, step count, and Ex to guide the AI of water and EER in Japanese preschool children. We found that FFM and step count are the determinants of TEE, and that BW and Ex are the determinants of WT in preschool children.

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Relationship between smartphone use management and physical activity in leisure time of children aged 4-6

Socioloski pregled ◽

10.5937/socpreg55-30773 ◽

2021 ◽

Vol 55 (2) ◽

pp. 477-508

Author(s):

Bojan Milošević ◽

Branka Janković ◽

Milenko Janković

Keyword(s):

Physical Activity ◽

Preschool Children ◽

Empirical Research ◽

Time Management ◽

Leisure Time ◽

Physical Activities ◽

Preschool Age ◽

Sports Activity ◽

Gender And Age ◽

Smartphone Use

We are witnesses to an ever faster and more "aggressive" influence of modern technologies, not only on lives of adults and adolescents, but also children of preschool age. This planetary trend has not bypassed contemporary Serbian society either. The subject of this paper is the analysis of the data collected through the original empirical research in relation to establishing a connection between (1) the dimension of smartphone control imposed by the parents and (2) the dimensions of physical activity of children of preschool age in their leisure time. The paper analyzes the physical activities of preschool children depending on the following variables: children's gender and age (4, 5 or 6 years old), whether the child owns a smartphone or not, whether the child is included in a programmed sports activity; all this in relation to the parents' statement on whether they limit the time of the child's smartphone use. The relationship between these variables is justified by applying the Parental Smartphone Use Management Scale (PSUMS), while Baecke questionnaire is used for the data on preschool children's physical activity in their leisure time. The empirical research was carried out in the first half of 2020 by conducting a survey among the parents of 943 preschool children aged from 4 to 6 attending preschool and daycare centres in the territory of the Autonomous Province of Vojvodina (Serbia). Based on the analysis of the collected data, we have deduced the following: 1. a large percentage of children from 4 to 6 do not own their own smartphones (77.9%), but nonetheless they use smartphones on a daily basis (73.4%); 2. there are no differences in children's physical activities in relation to their gender and age; 3. children spend more time on physical activities in their leisure time if they do not have their own smartphones, if they are engaged in an organized sports activity ("recreational schools"), as well as if their parents limit their smartphone use, and 4. children participate more in physical activities in their leisure time if their parents are consistent regarding children's smartphone time management. Recommendations to parents based on our research are that children should be included in free physical activities at the earliest preschool age, and in the structured/programmed ones at a later preschool age, because that is the period most suitable for accepting adequate habits of physical exercise that are carried on into adulthood. In that manner, children will more easily "give up" their passive (sedentary) activities in leisure time, which is usually spent alongside use of smartphone, all with the aim of optimizing the quality of their growing up.

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