Preventive medicine
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Preventive medicine · May 2011
Incidence of obesity during childhood and adolescence in a large contemporary cohort.
Timing of obesity development during childhood and adolescence is unclear, hindering preventive strategies. The primary aim of the present study was to quantify the incidence of overweight and obesity throughout childhood and adolescence in a large contemporary cohort of English children (the Avon Longitudinal Study of Parents and Children, ALSPAC; children born 1991-1992). A secondary aim was to examine the persistence of overweight and obesity. ⋯ Mid-late childhood (around age 7-11 years) may merit greater attention in future obesity prevention interventions.
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Preventive medicine · May 2011
Randomized Controlled TrialDecaying behavioral effects in a randomized, multi-year fruit and vegetable intake intervention.
To examine the effects of a multi-component, theory-based, 2.5-year intervention on children's fruit and vegetable consumption, preferences, knowledge and body mass index. ⋯ Although there was initial fruit and vegetable behavior change, annual measurements indicated a gradual decay of behavioral effects. These data have implications for the design of school-based fruit and vegetable interventions.
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Preventive medicine · May 2011
CommentDose-response relationship between walking and the attenuation of inherited weight.
Genetic factors account for 40%-70% of the variation in body mass index (BMI). We sought to test whether moderate intensity physical activity affected parent-offspring relationships for body mass index and regional adiposity in 26,587 female and 6428 male walkers surveyed in the United States in 2000. ⋯ These results suggest that moderate intensity physical activity attenuates inheritance of both total and regional adiposity in a dose-dependent manner.
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Preventive medicine · Mar 2011
Perceived environmental correlates of physical activity for leisure and transportation in Curitiba, Brazil.
Physical activity (PA) has consistently been associated with perceived environmental characteristics. ⋯ Different environmental attributes were associated with different PA outcomes, suggesting that these relationships are complex and may differ from those in high-income countries.
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We report race-related differences in response to behavioral interventions in colorectal cancer (CRC) screening. ⋯ Whites and African Americans may respond differently to mailed interventions intended to increase CRC screening. Research is needed on methods that can both increase screening and racial equity in screening.