scholarly journals Physical activity and sedentary activity: population epidemiology and concordance in Australian children aged 11–12 years and their parents

BMJ Open ◽  
2019 ◽  
Vol 9 (Suppl 3) ◽  
pp. 136-146 ◽  
Author(s):  
François Fraysse ◽  
Anneke C Grobler ◽  
Josh Muller ◽  
Melissa Wake ◽  
Timothy Olds
Keyword(s):  
Physical Activity ◽  
Vigorous Physical Activity ◽  
Correlation Coefficients ◽  
Population Based ◽  
Cross Sectional Study ◽  
Activity Data ◽  
Cross Sectional ◽  
Study Child ◽  
Objectively Measured ◽  
Parent Child

ObjectivesTo describe the epidemiology and parent–child concordance of objectively measured physical activity in a population-based sample of Australian parent–child dyads.DesignCross-sectional study (Child Health CheckPoint) nested within the Longitudinal Study of Australian Children.SettingAssessment centres in seven Australian cities and eight regional towns or home visits; February 2015–March 2016.ParticipantsOf all CheckPoint families (n=1874), 1261 children (50% girls) and 1358 parent (88% mothers) provided objectively measured activity data, comprising 1077 parent–child dyads.Outcome measuresActivity behaviour was assessed by GENEActiv accelerometer. Duration of moderate-to-vigorous physical activity (MVPA) and vigorous physical activity and sedentary behaviour (SB) were derived using Cobra custom software, along with MVPA/SB fragmentation and mean daily activity. Pearson’s correlation coefficients and linear regression estimated parent–child concordance. Survey weights and methods accounted for the complex sample design and clustering.ResultsAlthough parents had average lower accelerometry counts than children (mean [SD] 209 [46] vs 284 [71] g.min), 93% of parents met MVPA daily duration guidelines on published cutpoints (mean [SD] 125 [63] min/day MVPA), compared with only 15% of children (mean 32 [27] min). Parents showed less daily SB duration (parents: 540 [101], children: 681 [69] minutes) and less fragmented accumulation of MVPA (parents: α=1.85, children: α=2.00). Parent–child correlation coefficients were 0.16 (95% CI 0.11 to 0.22) for MVPA duration, 0.10 (95% CI 0.04 to 0.16) for MVPA fragmentation, 0.16 (95% CI 0.11 to 0.22) for SB duration and 0.18 (95% CI 0.12 to 0.23) for SB fragmentation.ConclusionsStandardised cutpoints are needed for objective activity measures to inform activity guidelines across the lifecourse. This may reflect large amounts of time in non-shared environments (school and work).

A Network Perspective on the Relationship Between Moderate to Vigorous Physical Activity and Fundamental Motor Skills in Early Childhood

2021 ◽  
pp. 1-8
Author(s):  
Thaynã Alves Bezerra ◽  
Paulo Felipe Ribeiro Bandeira ◽  
Anastácio Neco de Souza Filho ◽  
Cain Craig Truman Clark ◽  
Jorge Augusto Pinto Silva Mota ◽  
...  
Keyword(s):  
Physical Activity ◽  
Early Childhood ◽  
Vigorous Physical Activity ◽  
Cross Sectional Study ◽  
Older Children ◽  
Activity Data ◽  
Cross Sectional ◽  
Nonlinear Characteristics ◽  
Main Variable ◽  
The Relationship

Background: The relationship between moderate to vigorous physical activity (MVPA) and fundamental motor skill (FMS) is inconsistent in early childhood, due to its complex and nonlinear characteristics. This study aimed to analyze the nonlinear relationships between MVPA, FMS, body mass index (BMI), sex, and age in preschoolers. Methods: This cross-sectional study with preschoolers (n = 204; 4.0 [0.8] y old; 99 boys), provided objective physical activity data, FMS assessments, and BMI. The associations between MVPA, FMS, BMI, sex, and age were explored using the network analysis (RStudio and qgraph). Results: Boys were more motor competent than girls in all FMS skills, while girls were more active than boys during the weekend. Older children were less active than their younger peers during these days. MVPA is weak and differently related to each FMS, and the leap skill emerged with the highest betweenness and strength values in the network. Conclusions: For the assessed preschoolers, when considering BMI, age, and sex, the relationships between MVPA and FMS are inconsistent, and leap emerged as the main variable. During early childhood, these variables are connected as part of a complex system in which each skill has a dynamic role within the emerging pattern.

scholarly journals Correlates of Objectively Measured Physical Activity Among People With Multiple Sclerosis: A Cross-Sectional Study

2021 ◽  
Vol 2 ◽  
Author(s):  
Jennifer Fortune ◽  
Meriel Norris ◽  
Andrea Stennett ◽  
Cherry Kilbride ◽  
Grace Lavelle ◽  
...  
Keyword(s):  
Physical Activity ◽  
Multiple Sclerosis ◽  
Vigorous Physical Activity ◽  
Cross Sectional Study ◽  
Light Physical Activity ◽  
Cross Sectional ◽  
Walking Capacity ◽  
Relapsing Remitting ◽  
Objectively Measured ◽  
Objectively Measured Physical Activity

Background: Identifying correlates of physical activity (PA) for people with multiple sclerosis (MS) is essential to design effective PA interventions.Methods: Participants completed a battery of questionnaires and wore an ActiGraph accelerometer. Light physical activity (LPA) and moderate-to-vigorous physical activity (MVPA) (min/day) were calculated. Associations were examined using multiple linear regression adjusted for demographic and clinical confounders.Results: Fifty-eight adults with MS participated (mean ± SD age: 56.8 ± 9.2 yr; 67% women). MS type was associated with time in LPA. Participants with secondary progressive MS (B = −54.0, 95% CI −84.7 to −23.3) and primary progressive MS (B = −42.9, 95% CI −77.5 to −8.3) spent less time in LPA than those with relapsing remitting MS. Walking capacity, assessed using the 12-item MS walking scale (MSWS-12), was associated with time in MVPA (B = −0.36, 95% CI −0.72 to −0.01).Conclusion: This work identifies walking capacity and type of MS as correlates of PA, which may indicate development of interventions to promote PA.

Objectively Measured Physical Activity During Physical Education and School Recess and Their Associations With Academic Performance in Youth: The UP&DOWN Study

2017 ◽  
Vol 14 (4) ◽  
pp. 275-282 ◽  
Author(s):  
Irene Esteban-Cornejo ◽  
David Martinez-Gomez ◽  
Laura Garcia-Cervantes ◽  
Francisco B. Ortega ◽  
Alvaro Delgado-Alfonso ◽  
...  
Keyword(s):  
Physical Activity ◽  
Academic Performance ◽  
Physical Education ◽  
Vigorous Physical Activity ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
School Recess ◽  
Objectively Measured ◽  
School Records ◽  
Objectively Measured Physical Activity

Background:This study examined the associations of objectively measured physical activity in Physical Education and recess with academic performance in youth.Methods:This cross-sectional study was conducted with 1,780 participants aged 6 to 18 years (863 girls). Physical activity was objectively measured by accelerometry and was also classified according to sex- and agespecific quartiles of physical activity intensities. Academic performance was assessed through school records.Results:Physical activity in physical education (PE) and recess was not associated with academic performance (β ranging from –0.038 to –0.003; all P > .05). Youth in the lowest quartile of physical activity in PE engaged in an average of 1.40 min of moderate-to-vigorous physical activity and those in the highest quartile engaged in 21.60 min (for recess: lowest quartile, 2.20 min; highest quartile, 11.15 min). There were no differences in academic performance between quartiles of physical activity in Physical Education and recess.Conclusions:Time spent at different physical activity intensities during PE and recess does not impair academic performance in youth.

scholarly journals Operationalizing and Testing the Concept of a Physical Activity Desert

2021 ◽  
pp. 1-8
Author(s):  
Russell R. Pate ◽  
Marsha Dowda ◽  
Ruth P. Saunders ◽  
Natalie Colabianchi ◽  
Morgan N. Clennin ◽  
...  
Keyword(s):  
Physical Activity ◽  
Cross Sectional Study ◽  
Fifth Grade ◽  
Activity Data ◽  
Cross Sectional ◽  
Physically Active ◽  
Fifth Grade Students ◽  
Objectively Measured ◽  
Children’S Physical Activity ◽  
Objectively Measured Physical Activity

Background: The prevalence of childhood obesity is higher in economically and socially deprived areas. Higher levels of physical activity reduce the risk of excessive weight gain in youth, and research has focused on environmental factors associated with children’s physical activity, though the term “physical activity desert” has not come into wide use. Methods: This exploratory study operationalized the term “physical activity desert” and tested the hypothesis that children living in physical activity deserts would be less physically active than children who do not. A cross-sectional study design was applied with 992 fifth-grade students who had provided objectively measured physical activity data. Five of 12 possible elements of the built environment were selected as descriptors of physical activity deserts, including no commercial facilities, no parks, low play spaces, no cohesion, and the presence of incivilities. Results: Univariate and multivariate analyses showed that only the absence of parks was associated with less physical activity in children. Conclusion: Children living in a “no park” zone were less active than their counterparts who lived near a park. This study contributes preliminary conceptual and operational definitions of “physical activity desert.” Future studies of physical activity deserts should be undertaken in larger and more diverse samples.

Habitual Moderate-to-Vigorous Physical Activity is Inversely Associated With Insulin Resistance in Canadian First Nations Youth

2010 ◽  
Vol 22 (2) ◽  
pp. 254-265 ◽  
Author(s):  
Marc S. Mitchell ◽  
Catherine A. Gaul ◽  
Patti-Jean Naylor ◽  
Constadina Panagiotopoulos
Keyword(s):  
Physical Activity ◽  
Insulin Resistance ◽  
First Nations ◽  
Vigorous Physical Activity ◽  
Cross Sectional Study ◽  
Model Assessment ◽  
Cross Sectional ◽  
Rural Villages ◽  
Objectively Measured ◽  
The Relationship

The aim of this study was to explore the relationship between insulin resistance (IR) and objectively measured habitual moderate-to-vigorous physical activity (MVPA) in First Nations youth. A cross-sectional study was conducted in 2 rural villages in northern British Columbia, Canada. Thirty-nine healthy youth (16 males and 23 females; age = 11.8yrs ± 2.2; range = 8.8–18.5yrs) participated. PA was measured with ActiGraph GT1M accelerometers. The homeostasis model assessment estimate of IR (HOMA-IR) was used to define IR. Duration of MVPA was inversely related to HOMA-IR (r=−.44, p < .01). From the regression model, 30 min of habitual MVPA corresponded to HOMA-IR levels that were 15% lower. In conclusion, these findings suggest that active First Nations youth have lower HOMA-IR values.

scholarly journals Do Older People with Diabetes Meet the Recommended Weekly Physical Activity Targets? An Analysis of Objective Physical Activity Data

2019 ◽  
Vol 16 (14) ◽  
pp. 2489 ◽  
Author(s):  
Damiano Pizzol ◽  
Lee Smith ◽  
Ai Koyanagi ◽  
Brendon Stubbs ◽  
Igor Grabovac ◽  
...  
Keyword(s):  
Physical Activity ◽  
Healthy Lifestyle ◽  
Cross Sectional Study ◽  
Multivariable Logistic Regression Analysis ◽  
Activity Data ◽  
Cross Sectional ◽  
Weekly Physical Activity ◽  
Objectively Measured ◽  
The Relationship

Appropriate management of diabetes mellitus (DM) includes following a healthy lifestyle, in which reaching physical activity (PA) recommendations is an important factor. Despite this, it remains unclear whether people with DM meet the recommended PA targets. We therefore aimed to investigate the proportion of older adults with DM (type 1 and 2) engaging in the recommended amount of PA per week in a cross-sectional study. PA levels were objectively measured using the GT1M ActiGraph accelerometer for seven consecutive days, and the cut-off of 150 min of moderate-to-vigorous PA (MVPA) was used. To assess the relationship between not meeting the recommendation for, and the significant factors associated with PA level (MVPA < 150 min/week), a multivariable logistic regression analysis was applied. 197 diabetic participants (mean age = 66.8 years; 46.7% males) spent only 74.5 ± 94.4 min/weekly in MVPA, and only 39 (=19.8%) reached the cut-off for sufficient PA levels. Significant correlates of not meeting the recommendation for PA levels were female sex, depressive symptoms, and age. In conclusion, only one-fifth of diabetic people reached the recommended amount of PA, suggesting that more intervention is needed to increase PA levels in this population.

scholarly journals pQCT bone geometry and strength: population epidemiology and concordance in Australian children aged 11–12 years and their parents

BMJ Open ◽  
2019 ◽  
Vol 9 (Suppl 3) ◽  
pp. 63-74 ◽  
Author(s):  
Jennifer Vlok ◽  
Peter J Simm ◽  
Kate Lycett ◽  
Susan A Clifford ◽  
Anneke C Grobler ◽  
...  
Keyword(s):  
Correlation Coefficients ◽  
Bone Geometry ◽  
Population Based ◽  
Cross Sectional Study ◽  
Linear Regression Models ◽  
Quantitative Ct ◽  
Cross Sectional ◽  
Total Cross Sectional Area ◽  
Cortical Density ◽  
Parent Child

ObjectivesTo describe the epidemiology and concordance of bone health in a population-based sample of Australian parent-child dyads at child age 11–12 years.DesignPopulation-based cross-sectional study (the Child Health CheckPoint) nested between waves 6 and 7 of the Longitudinal Study of Australian Children (LSAC).SettingAssessment centres in seven cities around Australia, February 2015–March 2016.Participants: of all participating CheckPoint families (n=1874), bone data were available for 1222 dyads (1271 children, 50% girls; 1250 parents, 86% mothers).Outcome measuresPeripheral quantitative CT (pQCT) of the non-dominant leg scanned at the 4% (distal) and 66% (mid-calf) tibial sites. Stratec XCT 2000 software generated estimates of bone density, geometry and polar stress-strain index.Parent-child concordance were assessed using Pearson’s correlation coefficients and multivariable linear regression models. Percentiles were determined using survey weights. Survey weights and methods accounted for LSAC’s complex sampling, stratification and clustering within postcodes.ResultsConcordances were greater for the geometric pQCT parameters (periosteal circumference 0.38, 95% CI 0.33 to 0.43; endosteal circumference 0.42, 95% CI 0.37 to 0.47; total cross-sectional area 0.37, 95% CI 0.32 to 0.42) than density (cortical density 0.25, 95% CI 0.19 to 0.30). Mother-child and father-child values were similar. Relationships attenuated only slightly on adjustment for age, sex and body mass index. Percentiles and concordance are presented for the whole sample and by sex.ConclusionsThere is strong parent-child concordance in bone geometry and, to a lesser extent, density even before the period of peak adolescent bone deposition. This geometrical concordance suggests that future intergenerational bone studies could consider using pQCT rather than the more commonly used dual X-ray absorptiometry (DXA).

Accelerometer-Assessed Physical Activity and School Absenteeism Due to Illness or Injury Among Children and Adolescents: NHANES 2003 to 2006

2016 ◽  
Vol 32 (3) ◽  
pp. 571-577
Author(s):  
Paul D. Loprinzi ◽  
Emily Frith
Keyword(s):  
Physical Activity ◽  
Children And Adolescents ◽  
Multinomial Logistic Regression ◽  
Vigorous Physical Activity ◽  
Cross Sectional Study ◽  
School Absenteeism ◽  
Poverty Level ◽  
Cross Sectional ◽  
Health And Nutrition ◽  
Objectively Measured

Introduction: To examine the association between objectively measured moderate to vigorous physical activity (MVPA) and total physical activity with school absenteeism due to illness or injury among children and adolescents. Design: Cross-sectional study. Setting: National Health and Nutrition Examination Survey 2003 to 2006. Participants: A total of 1249 children (aged 6-11 years) and 1747 adolescents (aged 12-17 years). Measures: School absenteeism was categorized as no/minimal school absenteeism (0-8 missed school days in the past 12 months), moderate absenteeism (9-17 missed days), or severe absenteeism (18+ missed days). Physical activity was objectively measured via accelerometry. Analysis: Multinomial logistic regression. Results: Children in the most active quartile had 89% reduced odds of severe absenteeism relative to the least active quartile (odds ratio [OR]: 0.11; 0.95% confidence interval [CI]: 0.02-0.48); results were similar for MVPA. For adolescents, those in the most active quartile for MVPA had a 41% reduced odds of having moderate (vs no/minimal) absenteeism (OR = 0.59; 95% CI: 0.35-0.99). For children, a multiplicative interaction effect of MVPA and poverty level on severe absenteeism was observed (OR = 0.98, P = .02). Conclusion: Higher levels of physical activity were associated with lower odds of severe school absenteeism. Such an observation is important, as school absenteeism strongly contributes to academic performance. Particular attention for promoting physical activity and closely monitoring school absenteeism among youth below the poverty level may be warranted.

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