Overall , total PA was favourably associated with physical , psychological/social , and cognitive health indicators .
Relationships were more consistent and robust for higher ( e.g. , MVPA ) versus lower ( e.g. , LPA ) intensity PA .
All patterns of activity ( sporadic , bouts , continuous ) provided benefit .
LPA was favourably associated with cardiometabolic biomarkers ; data were scarce for other outcomes .
These findings continue to support the importance of at least 60 min/day of MVPA for disease prevention and health promotion in children and youth , but also highlight the potential benefits of LPA and total PA .
Moderate-to-vigorous physical activity ( MVPA ) is essential for disease prevention and health promotion .
Emerging evidence suggests other intensities of physical activity ( PA ) , including light-intensity activity ( LPA ) , may also be important , but there has been no rigorous evaluation of the evidence .
The purpose of this systematic review was to examine the relationships between objective ly measured PA ( total and all intensities ) and health indicators in school-aged children and youth .
Online data bases were search ed for peer- review ed studies that met the a priori inclusion criteria : population ( apparently healthy , aged 5 - 17 years ) , intervention/exposure/comparator ( volumes , duration s , frequencies , intensities , and patterns of objective ly measured PA ) , and outcome ( body composition , cardiometabolic biomarkers , physical fitness , behavioural conduct/pro-social behaviour , cognition/academic achievement , quality of life/well-being , harms , bone health , motor skill development , psychological distress , self-esteem ) .
Objectively measured physical activity correlates with indices of insulin resistance in Danish children. The European Youth Heart Study (EYHS).
OBJECTIVE To explore the association between measures of insulin resistance with objective ly assessed physical activity . DESIGN School-based , cross-sectional study . SUBJECTS A r and omly selected sample of 589 children ( 310 girls , 279 boys , mean ( st and ard deviations , s.d . ) age=9.7 ( 0.44 ) y , weight=33.6 ( 6.4 ) kg , height=1.39 ( 0.06 ) m ) from Denmark . METHODS Fasting blood sample s were analysed for serum insulin and glucose .  Physical activity  was measured with the uniaxial Computer Science and Applications ( CSA ) model 7164 accelerometer , worn for at least 3 days ( > /=10 h day(-1 ) ) .  Adiposity was assessed by the sum of four skinfolds . Multiple linear regression were performed to model insulin and glucose from average CSA output , adjusted for age , gender , puberty , ethnicity , birth weight , parental smoking , socioeconomic group , and CSA unit . In addition , we adjusted for skinfold thickness . RESULTS Mean fasting serum glucose ranged from 4.1 to 6.5 mmol l(-1 ) with a mean ( s.d . ) of 5.1 ( 0.37 ) mmol l(-1 ) . Fasting insulin was negatively correlated with CSA output on levels of adjustment . Fasting glucose was not significantly associated with physical activity . However , in girls both indices of insulin resistance were significantly related to activity , whereas in boys none of the associations were significant . CONCLUSION Physical activity is inversely associated with fasting insulin in the nondiabetic range of fasting glucose . The relationship was stronger for insulin than for glucose , indicating compensatory action by the beta cells . Our data emphasise the importance of  physical activity in children for the maintenance of metabolic control
Overall , total PA was favourably associated with physical , psychological/social , and cognitive health indicators .
Relationships were more consistent and robust for higher ( e.g. , MVPA ) versus lower ( e.g. , LPA ) intensity PA .
All patterns of activity ( sporadic , bouts , continuous ) provided benefit .
LPA was favourably associated with cardiometabolic biomarkers ; data were scarce for other outcomes .
These findings continue to support the importance of at least 60 min/day of MVPA for disease prevention and health promotion in children and youth , but also highlight the potential benefits of LPA and total PA .
Moderate-to-vigorous physical activity ( MVPA ) is essential for disease prevention and health promotion .
Emerging evidence suggests other intensities of physical activity ( PA ) , including light-intensity activity ( LPA ) , may also be important , but there has been no rigorous evaluation of the evidence .
The purpose of this systematic review was to examine the relationships between objective ly measured PA ( total and all intensities ) and health indicators in school-aged children and youth .
Online data bases were search ed for peer- review ed studies that met the a priori inclusion criteria : population ( apparently healthy , aged 5 - 17 years ) , intervention/exposure/comparator ( volumes , duration s , frequencies , intensities , and patterns of objective ly measured PA ) , and outcome ( body composition , cardiometabolic biomarkers , physical fitness , behavioural conduct/pro-social behaviour , cognition/academic achievement , quality of life/well-being , harms , bone health , motor skill development , psychological distress , self-esteem ) .