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 .
Socio-economic, behavioural and environmental factors predicted body weights and household food insecurity scores in the Early Childhood Longitudinal Study-Kindergarten.
Recent increases in obesity prevalence among children in developed countries are of policy concern . While significant positive associations between households ' food insecurity status and body weights have been reported for adults , it is known from the energy physiology literature that energy requirements depend on BMR , anthropometric measures and physical activity . It is therefore important to model the bi-directional relationships between body weights and households ' food insecurity scores especially for children that have evolving nutrient and energy requirements . The present paper estimated dynamic r and om effects models for children 's body weights and BMI , and households ' food insecurity scores using longitudinal data on 7635 children in the USA enrolled in 1st , 3rd and 5th grade s ( 1999 - 2003 ) of the Early Childhood Longitudinal Study -Kindergarten . The main findings were , first , physical exercise and numbers of siblings were significantly ( P < 0.05 ) negatively associated with body weights , while households ' food insecurity score was not a significant predictor . Moreover , children 's body weights were significantly lower in households with higher parental education and incomes ; time spent watching television and in non-parental care were positively associated with weights . Second , models for households ' food insecurity scores showed that poverty and respondents ' poor emotional and physical health significantly increased food insecurity . Moreover , households with children who were taller and heavier for their ages faced significantly higher food insecurity levels . Overall , the results showed that household food insecurity was unlikely to exacerbate child obesity in the USA and it is important that children receive balanced school meals and perform higher physical activity
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 .