There is a large body of evidence from all study design s which suggests that decreasing any type of sedentary time is associated with lower health risk in youth aged 5 - 17 years .
In particular , the evidence suggests that daily TV viewing in excess of 2 hours is associated with reduced physical and psychosocial health , and that lowering sedentary time leads to reductions in BMI
Accumulating evidence suggests that , independent of physical activity levels , sedentary behaviours are associated with increased risk of cardio-metabolic disease , all-cause mortality , and a variety of physiological and psychological problems .
Therefore , the purpose of this systematic review is to determine the relationship between sedentary behaviour and health indicators in school-aged children and youth aged 5 - 17 years .
Effects of overweight and leisure-time activities on aerobic fitness in urban and rural adolescents.
BACKGROUND The aim of this research was to study the effects of overweight and leisure-time activities on maximal aerobic capacity ( VO(2)max ) in urban and rural Omani adolescents . METHODS A total of 529 ( 245 males , 284 females ) adolescents , aged 15 - 16 years were r and omly selected from segregated urban and rural schools .  Maximal aerobic capacity was estimated using the multistage 20-meter shuttle-run test . RESULTS The body mass index ( BMI ) of urban boys and girls was significantly higher than that of rural boys and girls . Urban boys and girls spent significantly less weekly hours on sports activities  and significantly more weekly hours on TV/computer games  than their rural counterpart . Urban boys and girls achieved significantly less VO(2)max than rural boys and girls ( 44.2 and 33.0 vs. 48.3 and 38.6 mL/kg/min , respectively ) . Maximal aerobic capacity was negatively correlated with BMI in urban boys . CONCLUSION Overweight and inactivity had significant negative effects on cardiorespiratory fitness in urban boys and girls as compared to their rural counterparts . Weight gain in adolescence requires early intervention
There is a large body of evidence from all study design s which suggests that decreasing any type of sedentary time is associated with lower health risk in youth aged 5 - 17 years .
In particular , the evidence suggests that daily TV viewing in excess of 2 hours is associated with reduced physical and psychosocial health , and that lowering sedentary time leads to reductions in BMI
Accumulating evidence suggests that , independent of physical activity levels , sedentary behaviours are associated with increased risk of cardio-metabolic disease , all-cause mortality , and a variety of physiological and psychological problems .
Therefore , the purpose of this systematic review is to determine the relationship between sedentary behaviour and health indicators in school-aged children and youth aged 5 - 17 years .