Physical activity is inversely related to waist circumference in 12-y-old French adolescents

Klein-Platat, C; Oujaa, M.; Wagner, Anne; Haan, Marie-Christine; Arveiler, Dominique; Schlienger, Jean-Louis; Simon, Chantal

doi:10.1038/sj.ijo.0802740

Cited by 91 publications

(107 citation statements)

References 25 publications

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“…80 In a study of Swiss children, each additional hour of video games played daily was associated with a doubling of obesity risk. 38 Similar significant relationships between sedentary behavior (usually TV) and increased adiposity have been seen cross-sectionally, 41,59,[80][81][82][83][84][85][86][87][88] with some suggestion that the relationship is getting stronger over time. 81 In a study of Australian children, however, after adjusting for covariates, there was no relationship between obesity and time spent with TV, video games, or computers.…”

Section: Physical Inactivity and The Development Of Obesitymentioning

confidence: 85%

“…56,57 One study found that obese youth are more active than nonobese youth. 58 Two recent cross-sectional studies, however, illustrate the variety of findings: BMI was negatively associated with physical activity in females, but not males, 59 whereas fat mass was negatively associated with physical activity in males, but not females. 60 Cross-sectional studies in this area, however, do not allow determination of cause and effect because physical activity can be both an antecedent and consequence of obesity.…”

Section: Physical Activity and The Development Of Obesitymentioning

confidence: 99%

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Physical activity and sedentary behavior: a review of longitudinal studies of weight and adiposity in youth

2005

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AIM:To review the published prospective observational studies of the relationship of physical activity and sedentary behavior with the development of overweight and adiposity, with an emphasis on methodologic issues. METHODS: Sample size, population studied, length of follow-up, assessment of exposure (physical activity, inactivity, or sedentary behavior), assessment of outcome (relative weight, overweight, % body fatness, adiposity), statistical approach, and main findings were extracted, summarized, and key methodological issues highlighted. RESULTS: In total, 17 studies of physical activity and 15 studies of inactivity/sedentary behavior were identified; as these were not mutually exclusive, 20 unique studies were reviewed. Results were mixed, with most studies showing an inverse association of physical activity with weight or fatness outcomes and/or a direct association of inactivity/sedentary behavior with weight or fatness outcomes. The effects identified were generally of small magnitude. Imprecise measurement of activity exposures likely weakens the observed relationships. Most studies used a pre-post design and had limited duration of follow-up (r2 y). Studies with longer and more frequent follow-up did not always use the most advantageous statistical approach. CONCLUSIONS: On balance, the available evidence from prospective observational studies suggests that increased physical activity and decreased sedentary behavior are protective against relative weight and fatness gains over childhood and adolescence. In addition to improved measurement methods, longer and more frequent follow-up as well as truly longitudinal analysis methods would help establish these important prevention and intervention targets, and identify subgroups or development periods where interventions would likely be effective.

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Section: Physical Inactivity and The Development Of Obesitymentioning

confidence: 85%

Section: Physical Activity and The Development Of Obesitymentioning

confidence: 99%

Physical activity and sedentary behavior: a review of longitudinal studies of weight and adiposity in youth

2005

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“…Klein-Platat et al 11 , analyzing if physical activity was related to AC in adolescents, observed that 20.2% of the sample presented overweight and there was no difference in relation to sex.…”

Section: Discussionmentioning

confidence: 99%

“…Convincing information has been reported showing that the practice of physical activity during childhood could be related to a reduced risk of developing overweight and obesity, being an extremely important health element, because it has positive effects beyond well-being, addressing cardiovascular and musculoskeletal health 11 .…”

mentioning

confidence: 99%

Análise da prevalência de sobrepeso e obesidade e do nível de atividade física em crianças e adolescentes de uma cidade do sudoeste de São Paulo

Cabrera

Correia

Santos

et al. 2014

J. Hum. Growth Dev.

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Este estudo teve como objetivo verificar a prevalência de sobrepeso, obesidade e o nível de atividade física segundo o sexo de crianças e adolescentes de escolas públicas da cidade de Nantes, São Paulo, Brasil. A amostra foi composta de 170 crianças e 232 adolescentes com a idade média de 8,04±1,31 e 13,2±1,83 anos, respectivamente, de ambos os sexos e frequentadores de duas escolas. Foram coletadas as medidas antropométricas: Índice de massa corpórea pela idade (IMC/idade) e circunferência abdominal. O IMC/idade foi classificado de acordo com o Sistema de Vigilância Alimentar e Nutricional (SISVAN) (2007) e um questionário modificado e adaptado sugerido por Silva (2009) foi utilizado para analisar o nível de atividade física. O teste t não pareado foi realizado e os valores de p<0,05 foram considerados significativos.A prevalência de 30,59% dos indivíduos com sobrepeso ou obesidade, foi verificada sendo a maioria desta adolescente. Também foi encontrada maior média e com diferença significativa do valor da circunferência abdominal no sexo feminino no grupo das crianças. Foi observado que 62,68% da amostra são inativos ou inadequadamente ativos e que a maioria desses era do sexo feminino. Estes fatos demonstram considerável risco que estes indivíduos podem apresentar de complicações cardiovasculares e musculoesqueléticas no decorrer da vida. A importância da realização precoce de programas educacionais e nutricionais na escola deve ser enfatizada para prevenção e tratamento destes indivíduos com excesso de peso e baixo nível de atividade física.

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“…The most likely explanation is that exercise increases muscle mass and this offsets the effects of fat loss on weight and BMI; an effect also observed in other studies of physical activity. 8,18 We analyzed the results separately by gender because of previous findings of stronger effects either in girls 2,9 or Table 1 Demographic characteristics for pupils completing both years of data collection School PE and adiposity in adolescents J Wardle et al boys. 4,5 Our results resemble the M-Span study, 4 which examined the effects of increased opportunities for activity in school and found reduced adiposity in boys but not girls.…”

Section: Discussionmentioning

confidence: 99%

School-based physical activity and changes in adiposity

2007

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Objective: School-based physical education (PE) is often proposed as a strategy for obesity prevention, but many trials have found non-significant effects on body mass index (BMI). We examined the impact of school PE on adiposity in adolescents, using an ecological analysis to relate the number of PE sessions to changes in BMI and waist circumference. Research methods and procedures: Five-year, longitudinal, school-based study involving 34 secondary schools in London, England. Students were aged 11-12 years at baseline. Twenty-five schools reported one weekly session of PE, seven schools reported two sessions and two boys' schools reported three sessions. Weights, heights and waist circumferences were measured annually, and complete data from the first and fifth years of the study were available on 2727 students. Analyses compared anthropometric changes between students in schools with higher or lower amounts of PE time. In boys, the comparisons were between those receiving 1, 2 or 3 weekly sessions. In girls, comparisons were between those receiving one and two sessions. Results: There were no differences in BMI changes or the percentage of students classified as obese between schools of higher and lower frequency of PE. However, using unadjusted data, there were lower gains in waist circumference in boys and girls from the higher PE schools. Controlling for baseline demographic and anthropometric characteristics, boys in schools providing 3 weekly PE sessions gained on average approximately 3 cm less than boys in schools providing one or two sessions (Po0.001). Differences in girls were in the same direction but not significant. Discussion: Higher levels of school PE were associated with lower gains in adiposity in boys. This strengthens the case for including recommendations on school PE time as part of population strategies to control adolescent obesity.

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Physical activity is inversely related to waist circumference in 12-y-old French adolescents

Cited by 91 publications

References 25 publications

Physical activity and sedentary behavior: a review of longitudinal studies of weight and adiposity in youth

Physical activity and sedentary behavior: a review of longitudinal studies of weight and adiposity in youth

Análise da prevalência de sobrepeso e obesidade e do nível de atividade física em crianças e adolescentes de uma cidade do sudoeste de São Paulo

School-based physical activity and changes in adiposity

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