Rebound Body Mass Index Growth in Year‐Round Elementary Education Students of Largely Hispanic Descent Undergoing Obesity Interventions
Copyright policy )Rebound Body Mass Index Growth in Year‐Round Elementary Education Students of Largely Hispanic Descent Undergoing Obesity Interventions
ABSTRACTBACKGROUNDBody mass index (BMI) increases when students are away on summer vacation. Evaluation of serial BMI measurements on year‐round students allows new insight into the reasons children gain weight seasonally.METHODSThe 206 first and second graders of 2‐year‐round elementary schools with obesity intervention programs were weighed and measured every 6 months from April 2011 until April 2013. BMI and BMI percentiles were recorded.RESULTSChildren <50th, 50th to 85th, and 85th to 95th BMI percentiles showed significant accelerated winter gains in BMI (p = 2.6 × 10−7, p = 6.8 × 10−10, and p = .0007, respectively) compared with the previous summers. Accelerated BMI growth of the second summer was absent when compared with the previous winter BMI changes in children <95th percentile (p = .48, p = .81, and p = .93). For children >95th percentile, BMI gain continued without significant changes year‐round.CONCLUSIONSSchool‐wide interventions to induce BMI growth limitations are associated with significant rebound BMI gain with possible wintertime augmentation in nonobese children of year‐round education programs. Obese children do not display rebound BMI gain, BMI seasonal change, or BMI limitations in response to school‐based interventions. School weight control programs should consider off‐campus sources of weight gain and be vigilant for rebound and delayed seasonal BMI gains.
- University of California, Riverside United States
Male, Hispanic or Latino, Overweight, Weight Gain, California, Body Mass Index, Child Development, Humans, Female, Obesity, Seasons, Child, School Health Services
Male, Hispanic or Latino, Overweight, Weight Gain, California, Body Mass Index, Child Development, Humans, Female, Obesity, Seasons, Child, School Health Services
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