However , total PA , sedentary behaviour , and different PA intensities were not associated with body mass index ( BMI ) or waist circumference .
Adiposity levels were lower among preschool children engaged in more ( moderate-to- ) vigorous PA compared with their peers , but no associations  between  PA and BMI or waist circumference were found
Evidence on the association between  physical activity ( PA ) and adiposity in young children is inconclusive .
A systematic review and meta-analyses were conducted to examine associations between accelerometer-derived PA and varying adiposity outcomes  in preschool children .
How Does the Relationship Between Motor Skill Performance and Body Mass Index Impact Physical Activity in Preschool Children?
PURPOSE To determine if weight status modifies the relationship between motor skill ( MS ) performance and  physical activity ( PA )  in preschoolers . METHODS Preschoolers ( N = 227 , age 3 - 5 y ) were recruited from 22 preschools . Preschoolers ' MS ( locomotor , object control , and total MS ) were assessed with the Children 's Activity and Movement in Preschool Study MS protocol . PA was measured by accelerometry . Mixed linear models were used to examine the relationship of MS performance and body mass index ( BMI ) z score to PA . Models were adjusted for age , race , sex , and parent education , with preschool as a r and om effect . RESULTS There was a significant correlation between MS performance and PA ( r = .14-.17 , P < .05 ) . A significant interaction was observed between BMI z score and object control , and between BMI z score and total MS score on PA ( P = .03 ) . Preschoolers with higher BMI z scores and high object control scores engaged in significantly ( P = .03 ) more PA than preschoolers with lower BMI z scores and high object control scores ( PA = 15.04 min/h and 13.54 min/h , respectively ) . Similarly , preschoolers with higher BMI z scores and high total MS scores spent significantly ( P = .01 ) more time in  PA  compared with those with lower BMI z scores and high total MS scores ( PA = 15.65 min/h and 13.91 min/h , respectively ) . CONCLUSION Preschool children 's MS performance is positively correlated with PA , and BMI z score modified the relationship between MS performance and PA
However , total PA , sedentary behaviour , and different PA intensities were not associated with body mass index ( BMI ) or waist circumference .
Adiposity levels were lower among preschool children engaged in more ( moderate-to- ) vigorous PA compared with their peers , but no associations  between  PA and BMI or waist circumference were found
Evidence on the association between  physical activity ( PA ) and adiposity in young children is inconclusive .
A systematic review and meta-analyses were conducted to examine associations between accelerometer-derived PA and varying adiposity outcomes  in preschool children .