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The multivariate physical activity signature associated with metabolic health in children.

ABSTRACT: BACKGROUND:Physical activity is a cornerstone for promoting good metabolic health in children, but it is heavily debated which intensities (including sedentary time) are most influential. A fundamental limitation to current evidence for this relationship is the reliance on analytic approaches that cannot handle collinear variables. The aim of the present study was to determine the physical activity signature related to metabolic health in children, by investigating the association pattern for the whole spectrum of physical activity intensities using multivariate pattern analysis. METHODS:We used a sample of 841 children (age 10.2?±?0.3 years; BMI 18.0?±?3.0; 50% boys) from the Active Smarter Kids study, who provided valid data on accelerometry (ActiGraph GT3X+) and several indices of metabolic health (aerobic fitness, abdominal fatness, insulin sensitivity, lipid metabolism, blood pressure) that were used to create a composite metabolic health score. We created 16 physical activity variables covering the whole intensity spectrum (from 0-100 to ? 8000 counts per minute) and used multivariate pattern analysis to analyze the data. RESULTS:Physical activity intensities in the vigorous range (5000-7000 counts per minute) were most strongly associated with metabolic health. Moderate intensity physical activity was weakly related to health, and sedentary time and light physical activity were not related to health. CONCLUSIONS:This study is the first to determine the multivariate physical activity signature related to metabolic health in children across the whole intensity spectrum. This novel approach shows that vigorous physical activity is strongest related to metabolic health. We recommend future studies adapt a multivariate analytic approach to further develop the field of physical activity epidemiology. TRIAL REGISTRATION:The study was registered in Clinicaltrials.gov (www.clinicaltrials.gov) 7th of April 2014 with identification number NCT02132494 .

SUBMITTER: Aadland E

PROVIDER: S-EPMC6094580 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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The multivariate physical activity signature associated with metabolic health in children.

Aadland Eivind E Kvalheim Olav Martin OM Anderssen Sigmund Alfred SA Resaland Geir Kåre GK Andersen Lars Bo LB

The international journal of behavioral nutrition and physical activity 20180815 1

<h4>Background</h4>Physical activity is a cornerstone for promoting good metabolic health in children, but it is heavily debated which intensities (including sedentary time) are most influential. A fundamental limitation to current evidence for this relationship is the reliance on analytic approaches that cannot handle collinear variables. The aim of the present study was to determine the physical activity signature related to metabolic health in children, by investigating the association patter ...[more]

PMID: 30111365

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Project description:The evidence regarding associations between intensity-specific physical activity and cognitive and learning outcomes in preschoolers is inconsistent and limited by low sample sizes and analytical approaches that cannot handle the multicollinearity among multiple physical activity intensity variables. We aimed to determine the multivariate physical activity intensity signatures associated with self-regulation, executive function, and early academic learning in preschool children aged 3-5 years. A 711 Norwegian preschool children (mean age 4.6 years, 52% boys) provided valid data on physical activity (ActiGraph GT3X+), self-regulation, executive function, and early academic learning during 2019-2020. Multivariate pattern analysis was used to determine associations between uniaxial and triaxial intensity spectra (time spent in intensities from 0-99 to ≥15,000 counts per minute) and the outcomes in the total sample and in subgroups split by sex and age (median split). Uniaxial data led to the highest explained variances (R 2) and were reported as the primary findings. We found significant association patterns between physical activity and numeracy (R 2 = 4.28%) and inhibition (R 2 = 1.48%) in the total sample. The associations with numeracy were negative for time spent sedentary (0-99 counts per minute) and positive for time spent in moderate to vigorous intensities (≥ 1,000 counts per minute). The associations with inhibition were positive for time spent sedentary (0-99 counts per minute) and in vigorous intensities (≥ 8,500 counts per minute) and negative for time spent in low to moderate intensities (100-3,499 counts per minute). Associations with numeracy were stronger in boys (R 2 = 5.58%) and older children (R 2 = 7.27%), and associations with inhibition were stronger in girls (R 2 = 3.12%) and older children (R 2 = 3.33%). In conclusion, we found weak associations with numeracy and inhibition across the physical activity intensity spectrum in preschool children.

Dataset Information

The multivariate physical activity signature associated with metabolic health in children.

Publications

The multivariate physical activity signature associated with metabolic health in children.

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