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Secular Changes in BMI and Obesity Risk in Japanese Children: Considerations from a Morphologic Perspective

机译:日本儿童BMI的长期变化和肥胖风险:从形态学角度的考虑

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The increasing prevalence of childhood obesity is a global health issue. Past studies in Japan have reported anincrease in both body mass index (BMI) and risk of obesity among children and adolescents. However, changes in bodysize and proportion in this population over time have also influenced BMI. To date, no study of secular changes inchildhood obesity has considered the impact of changes in morphological factors. The current study explored the secularchanges in BMI and childhood obesity risk among Japanese children from 1950 to 2000 with consideration of changes inbody size and the proportions using The Statistical Report of the School Health Survey (SHS). The age of peak velocity(PV) occurred approximately two years earlier in both genders across this period. While the increments in height, sittingheight and sub-ischial leg length relative to height levelled off by 1980, weight gain continued in boys. Between 1980 and2000, the rate of the upper body weight gain in boys and girls were 0.7-1.3 kg/decade and 0.2-1.0 kg/decade, respectively.After considering body proportions, increments in body weight were small. It could be suggested that the increments inweight and BMI across the 50-year period may be due to a combination of changes including the tempo of growth andbody size due to lifestyle factors.
机译:儿童肥胖的患病率上升是一个全球性的健康问题。日本过去的研究表明,儿童和青少年的体重指数(BMI)和肥胖风险均增加。但是,随着时间的推移,该人群的体型和比例的变化也影响了BMI。迄今为止,尚无关于儿童肥胖的长期变化的研究考虑过形态因素变化的影响。本研究使用学校健康调查的统计报告(SHS),研究了1950至2000年日本儿童BMI的长期变化和儿童肥胖风险,并考虑了体型和比例的变化。在此期间,男女的峰值速度(PV)年龄都早于两年。到1980年,身高,坐姿高度和坐骨下腿长度相对于身高的增长趋于平稳,而男孩的体重持续增加。在1980年至2000年之间,男孩和女孩的上半身增重率分别为0.7-1.3千克/十年和0.2-1.0千克/十年。在考虑体重比例后,体重的增加很小。可以认为,在过去的50年中,体重和BMI的增加可能是由于生活方式变化引起的变化,包括生长速度和身体尺寸的变化。

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