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 .
Do we fatten our children at the television set? Obesity and television viewing in children and adolescents.
The association of television viewing and obesity in data collected during cycles II and III of the National Health Examination Survey was examined . Cycle II examined 6,965 children aged 6 to 11 years and cycle III examined 6,671 children aged 12 to 17 years . Included in the cycle III sample were 2,153 subjects previously studied during cycle II . These surveys , therefore , provided two cross-sectional sample s and one prospect i ve sample . In all three sample s , significant associations of the time spent watching television and the prevalence of obesity were observed . In 12- to 17-year-old adolescents , the prevalence of obesity increased by 2 % for each additional hour of television viewed . The associations persisted when controlled for prior obesity , region , season , population density , race , socioeconomic class , and a variety of other family variables . The consistency , temporal sequence , strength , and specificity of the associations suggest that television viewing may cause obesity in at least some children and adolescents . The potential effects of obesity on activity and the consumption of calorically dense foods are consistent with this hypothesis
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 .