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 ) .
Serum lipids, glucose and insulin levels in healthy schoolchildren aged 9 and 15 years from central Sweden: Reference values in relation to biological, social and lifestyle factors
Background . There is a shortage of reference values for cardiovascular risk factors such as serum lipids , glucose and insulin related to biological , social and lifestyle factors for Swedish children and adolescents . Such values are needed for planning and evaluation of public health activities , and for clinical use . Design and Methods . Data for this cross‐sectional , school‐based study were collected during a school year ( September to May ) . A r and om sample of 1137 girls and boys aged 9 and 15 years from two locations in central Sweden participated in the study , and blood sample s were taken from 969 of them . Methods . Fasting serum blood sample s were analysed for triglycerides , total cholesterol , high‐density lipoprotein cholesterol , glucose and insulin . Physical examination included measurement of height , weight and pubertal status . Question naires provided family background data . Total physical activity was measured by accelerometer registration . Results . Serum levels differed significantly between age and gender groups and were correlated to pubertal status . Neither genetic nor socio‐economic background nor smoking status influenced the serum levels . Insulin levels were elevated in subjects with a body mass index in the highest decentile , compared with the levels in the rest of the subjects . The insulin levels were inversely associated with total physical activity , and physical activity varied with season . Conclusions . Pubertal status ( biological age ) should to be considered in the interpretation of serum values in schoolchildren rather than chronological age . The interpretation of insulin values should include both body mass index and physical activity level , and perhaps also season . Previously described regional differences in serum lipid levels in Swedish adults seem to be present also in children
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 ) .