Correlates and Predictors of Adiposity among Mohawk Children

Horn, Ojistoh; Paradis, Gilles; Potvin, Louise; Macaulay, Ann C.; Desrosiers, Serge

doi:10.1006/pmed.2001.0881

Cited by 44 publications

(49 citation statements)

References 40 publications

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“…Several methodologic challenges can explain not only the expected inverse relationships for physical activity and obesity, 70 but also the expected positive relationships between sedentary behavior and obesity; 97 the numerous null findings and even the occasional counterintuitive result. 78 These challenges include measurement issues, sample selection, and statistical issues such as residual confounding, overadjustment, model selection, and inappropriate longitudinal analyses.…”

Section: Methodologic Challenges/statistical Issuesmentioning

confidence: 99%

“…35,48,[65][66][67] The others relied on self-reported measures, either by the children themselves, 61,[68][69][70][71] by their parents, [72][73][74][75][76][77] or by a combination thereof. 78 In the Framingham Children's Study, children wore accelerometers for up to 5 days twice per year.…”

Section: Physical Activity and Sedentary Behavior A Must And Dj Tybormentioning

confidence: 99%

“…79 Finally, the activity literature includes seven studies that utilized parent report of child activity. [72][73][74][75][76][77][78] The children in these studies tended to be young; all but Maffeis et al's study of elementary school-aged children was conducted on children aged 9 or younger. With the exception of the studies by Klesges 72 and Horn, 78 no significant associations between parent-reported physical activity and weight or fatness measures were demonstrated.…”

Section: Physical Activity and Sedentary Behavior A Must And Dj Tybormentioning

confidence: 99%

“…In the study by Klesges et al, 56 baseline aerobic activity level relative to peers was inversely related to change in BMI over 2 y, but structured physical activity and leisure time physical activity were not significantly related to BMI change. In Mohawk children followed up 2 y after a baseline measure, physical activity in girls was positively related to adiposity increases, as measured by sum of skinfolds; 78 this study included a mix of parental report (children grades 1-3) and self-report (grades 4-6).…”

Section: Physical Activity and Sedentary Behavior A Must And Dj Tybormentioning

confidence: 99%

“…66,73,[75][76][77][78]81,96,97 Of the studies with younger subjects, most reported positive associations between television viewing and adiposity. 66,77,78,81,96,97 Each additional hour of TV watched by Australian children at age 6 was associated with a 40% increased odds of overweight at age 8. Associations remained significant after adjusting for birth weight, maternal BMI, maternal smoking, and children's PAL.…”

Section: Physical Inactivity 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: Methodologic Challenges/statistical Issuesmentioning

confidence: 99%