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目的了解广西汉、壮、瑶族儿童体能发育情况及其与血清IGF-1,IGFBP-3的关系,为儿童的体能发育研究提供理论依据。方法于2013—2015年采用序列研究法对广西汉、壮、瑶族7,10,13岁的健康儿童进行调查,各民族每个性别各年龄组50~60人,并进行2年追踪,获得7~15岁儿童498人相关资料。调查项目包括肺活量、立定跳远、1 min仰卧起坐/斜身引体/引体向上和血清IGF-1,IGFBP-3水平。结果与2010年全国学生体质健康调研结果相比,汉、壮、瑶族7~15岁儿童肺活量水平均上升,壮、瑶族儿童斜身引体下降,立定跳远、1 min仰卧起坐和引体向上大部分组别均上升,而汉族儿童则多为下降。血清IGF-1,IGFBP-3平均水平分别为39.84~195.48μg/L和32.95~100.63μg/L,基本均于13岁组达高峰,大部分组别IGF-1,IGFBP-3存在民族差异(P值均<0.05)。IGF-1,IGFBP-3与部分体能指标有中度相关(P值均<0.05)。结论广西壮、瑶族儿童体质健康水平逐渐提高,汉族则为下降趋势,血清IGF-1,IGFBP-3与体能发育可能有关联。
Objective To understand the physical development of Han, Zhuang and Yao children in Guangxi and its relationship with serum IGF-1, IGFBP-3 and to provide theoretical basis for the physical development of children. Methods In 2013-2015, we investigated the healthy children aged 7, 10, 13 years old from Han, Zhuang and Yao ethnic groups in Guangxi province by using sequence method. Each ethnic group had 50-60 people of each age group and was followed up for 2 years and got 7 498-year-old child-related information. Investigations included spirometry, long jump, 1-minute crunches / pull-ups / pull-ups and serum IGF-1, IGFBP-3 levels. Results Compared with the result of National Student Physical Health Survey in 2010, the spirits of children from 7 to 15 years old of Han, Zhuang and Yao ethnic groups increased. The children of Zhuang and Yao ethnic groups descended, the standing long jump, 1-minute sit-ups and pull-ups Most of the groups increased, while Han children mostly declined. The average levels of IGF-1 and IGFBP-3 in serum were 39.84-195.48μg / L and 32.95-100.63μg / L, respectively, and all reached the peak at the age of 13 years old. There were ethnic differences in IGF-1 and IGFBP-3 in most groups P <0.05). IGF-1, IGFBP-3 and some physical indicators have a moderate correlation (P <0.05). Conclusion The constitutional health of children in Zhuang and Yao ethnic groups in Guangxi gradually increased while that in Han nationality decreased. Serum IGF-1 and IGFBP-3 may be associated with physical development.