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 .
Associations of overweight and of weight dissatisfaction among Palestinian adolescents: findings from the national study of Palestinian schoolchildren (HBSC-WBG2004).
BACKGROUND Overweight and obesity as well as weight dissatisfaction have been increasing in prevalence worldwide . Body weight dissatisfaction and fear of fatness are potential contributors to disordered eating . The present study aim ed to investigate the prevalence of self-reported overweight and weight dissatisfaction along with associations with socio-demographic characteristics , body image , health complaints , risk behaviours , physical activity and television viewing in adolescents in Palestine . METHODS The 2003/04 Palestinian Health Behaviour in School-aged Children ( HBSC ) is a cross-sectional survey of 17,817 adolescents from 405 r and omly selected schools . Students from a representative sample of grade s 6 , 8 , 10 and 12 ( aged 12 - 18 years ) self-completed a modified version of the international World Health Organization collaborative Health Behaviour in School-aged Children ( HBSC-2002 ) question naire . RESULTS Although 16.5 % of the adolescents were overweight , almost twice that number ( 32.1 % ) were dissatisfied with their weight ( i.e. dieting or perceiving a need to diet ) . Of those adolescents , two-thirds were not actually overweight ( 56.4 % boys ; 73.5 % girls ) . One-fifth of the total number of adolescents ( 16.0 % boys ; 24.0 % girls ) were not overweight but were dissatisfied with their weight . Boys reporting overweight or weight dissatisfaction were more likely to have mothers with higher education or to be from more affluent families . Among both genders , but especially among girls , weight dissatisfaction was positively associated with most of the outcome variables ( body image , health complaints , risk behaviours , and television viewing ) regardless of weight status , whereas weight status was associated with only a few of the outcome variables . CONCLUSIONS Weight dissatisfaction , independent of weight status , is associated with body image , health complaints , risk behaviours and television viewing , and represents a potential health risk factor for adolescents . Preventive interventions should focus not only on weight status , but also on body weight dissatisfaction
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 .