Physical activity and determinants of physical activity in obese and non-obese children

Trost, Stewart G.; Kerr, Lynne M.; Ward, Dianne S.; Pate, Russell R.

doi:10.1038/sj.ijo.0801621

Cited by 557 publications

(459 citation statements)

References 34 publications

Supporting

Mentioning

386

Contrasting

Unclassified

Order By: Relevance

“…The absence of an association found for all children between overweight or obesity and physical activity practice (unlike previously reported (30,31) ) may be partly explained by our procedure of measurement of physical activity that was based on selfreported information and that did not take into account the intensity of physical activity.…”

Section: Discussionmentioning

confidence: 55%

Prevalence and factors associated with overweight and obesity in French primary-school children

Thibault

Carriere

Langevin

et al. 2012

Public Health Nutr.

View full text Add to dashboard Cite

Objective: To determine the prevalence of, and identify associated factors with, overweight and obesity in two samples of French children. Design: We conducted two cross-sectional studies among two samples of children. Weight status, eating behaviour, sedentary activity, physical activity and parents' socio-economic status (SES) were collected using questionnaires filled by doctors during school health check-ups. Overweight and obesity were defined according to the age-and sex-specific BMI cut-off points of the International Obesity Taskforce. Multivariate analysis (logistic regression) was used to identify independent factors associated with overweight including obesity and obesity alone. Setting: Aquitaine region (south-west France). Subjects: Analyses were conducted among children aged 5-7 years (n 4048) and 7-11 years (n 3619). Results: Overweight prevalence was 9?5 % including 2?2 % of obesity in 5-7-yearold children and 15?6 % including 2?9 % of obesity in 7-11-year-old children. In both samples, overweight and obesity prevalence were higher in children whose parents had low or medium SES (P , 0?05). Factors associated significantly (P , 0?05) and independently with higher overweight or obesity prevalence were female gender, low or medium parental SES, never or sometimes having breakfast, never eating at the school canteen, never having a morning snack, never or sometimes having a light afternoon meal and having high sedentary activity. Conclusions: Our data confirm that low SES, absence of breakfast and high sedentary activity are associated with a higher risk of being overweight or obese, but also highlight original potential protective factors such as eating at the canteen and high meal frequency.

show abstract

Section: Discussionmentioning

confidence: 55%

Prevalence and factors associated with overweight and obesity in French primary-school children

Thibault

Carriere

Langevin

et al. 2012

Public Health Nutr.

View full text Add to dashboard Cite

show abstract

“…In addition, population-based studies have consistently shown that overweight/obese children have higher levels of BP and a higher prevalence of hypertension than their non-overweight/obese counterparts. [9][10][11] Given that sedentary behaviours are positively associated with childhood adiposity, [12][13][14] it is reasonable to hypothesize that various sedentary activities may also be independently associated with BP in children.…”

Section: Introductionmentioning

confidence: 99%

Relationship between a range of sedentary behaviours and blood pressure during early adolescence

et al. 2011

View full text Add to dashboard Cite

Very few studies have explored links between physical activity, sedentary behaviours and blood pressure (BP) in early adolescence. We aimed to assess the association between a range of sedentary activities (screen time, television (TV) viewing, computer usage, video game usage and time spent in homework or reading) and BP in schoolchildren. Eligible year-7 students (2353/3144, mean age 12.7 years) from a random cluster sample of 21 Sydney schools were examined during [2003][2004][2005]. Parents and children completed detailed questionnaires of activity. BP was measured using a standard protocol and high BP was defined using published guidelines. Height and weight were measured, and body mass index (BMI) calculated. After adjusting for age, sex, ethnicity, parental education, height, BMI and time spent in physical activity, each hour per day spent in screen time, watching TV and playing video games was associated with a significant increase in diastolic BP of 0.44 (P ¼ 0.0001), 0.99 (Po0.0001) and 0.64 mm Hg (P ¼ 0.04), respectively. In contrast, each hour per day spent reading was associated with a decrease of 0.91 (P ¼ 0.01) and 0.69 mm Hg (P ¼ 0.02) in systolic and diastolic BP, respectively. Our results indicate that addressing different types of sedentary activities could be a potentially important strategy to reduce the prevalence of elevated BP in children.

show abstract

“…10 In contrast, several studies reported no or a positive association, whereas others reported inverse associations, but not always consistently for systolic and diastolic BP in both males and females. 11,13 Moreover, although many studies have examined the association between physical activity and adiposity in younger children, 14,15 very few large population-based studies (and none conducted in Australia to date) have assessed the relationship with BP during prepuberty.…”

Section: Introductionmentioning

confidence: 99%

Association between physical activity and blood pressure in prepubertal children

et al. 2011

View full text Add to dashboard Cite

Elevated blood pressure (BP) during childhood and adolescence increases the risk of hypertension in later life. Although physical activity is known to positively moderate BP, data regarding this relationship are limited in prepubertal children. We aimed to assess the association between a range of physical activities (including indoor and outdoor activity) and BP in a large community-based sample of prepubertal schoolchildren. Eligible year-1 schoolchildren (n¼1765; mean age 6.7 ± 0.4 years) from a random cluster sample of 34 schools in Sydney, Australia, were examined. Parents completed detailed questionnaires about their child's activity. Height and weight were measured, and body mass index (BMI) was calculated. BP was measured using a standard protocol, and elevated BP was defined using published guidelines. Physical activity was classified as low, medium or high (that is, as tertiles). After adjusting for age, sex, ethnicity, height, BMI, parental qualifications and family history of hypertension and/or cardiovascular disease, children in the highest tertile of outdoor and indoor activities had significantly lower diastolic BP (B1.5 mm Hg; P trend ¼0.01) and systolic BP (B1.3 mm Hg; P trend ¼0.03), respectively, compared with those in the lowest tertile (reference). Linearly, time spent in indoor activities (each hour per day) was associated with B2.4 mm Hg decrease in diastolic BP (P¼0.001). Physical activity was independently associated with lower BP in this sample of prepubertal children. The findings emphasize the importance of ensuring regular physical activity programs in primary schools to potentially reduce the risk of elevated BP in childhood and in later life. Keywords: blood pressure; children; physical activity; prepuberty; Sydney Childhood Eye Study INTRODUCTION Elevated blood pressure (BP) during childhood and adolescence is associated with increased risk of hypertension and cardiovascular disease (CVD), 1 and the development of early pathological lesions of atherosclerosis. 2,3 Thus, the recognition and management of elevated BP at an early age, and the identification of modifiable risk factors, may be an important strategy for limiting the overall public health disease burden caused by hypertension. 4,5 Physical activity is a key component of the therapeutic lifestyle changes recommended for preventing and treating elevated BP and hypertension in children and adolescence. 6,7 There is evidence that levels of physical activity, aerobic fitness and CVD risk factors track from childhood and adolescence into adulthood. 8 A number of observational studies have investigated associations between physical activity and BP in children and adolescents, 9-12 but the findings from these studies have been equivocal. Recently, a UK study of 5505 children aged 11-12 years showed that higher levels of physical activity were associated with lower BP, and the authors concluded that the volume of activity may be more important than the intensity. 10 In contrast, several studies reported no or a positive associat...

show abstract

Physical activity and determinants of physical activity in obese and non-obese children

Cited by 557 publications

References 34 publications

Prevalence and factors associated with overweight and obesity in French primary-school children

Prevalence and factors associated with overweight and obesity in French primary-school children

Relationship between a range of sedentary behaviours and blood pressure during early adolescence

Association between physical activity and blood pressure in prepubertal children

Contact Info

Product

Resources

About