| 最佳曲线拟合后的山西省与全国学生身高变化趋势研究 |
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| 引用本文： | 巫国贵,李治.最佳曲线拟合后的山西省与全国学生身高变化趋势研究[J].搏击·武术科学,2011,8(11):112-114. |
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| 作者姓名： | 巫国贵 李治 |
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| 作者单位： | 中北大学体育与艺术学院,山西太原,030051 |
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| 基金项目： | 山西省教育科学“十一五”规划课题 |
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| 摘 要： | 文章运用曲线拟合的方法，将全国和山西省城市汉族7-22岁男学生各年龄段断面的身高数据拟合转换为纵向连续资料，选取最佳曲线拟合模型，对比分析揭示内部变化规律。发现山西与全国城市汉族7-22岁男学生身高均值与生长速度变化趋势一致，均在7-9岁和10-12岁身高进入生长突增期，13-19岁增长速度缓慢下降，20岁趋于稳定后身高均值有随年龄增长而降低趋势。全国与山西省增长速度曲线在6岁和15岁时两次交叉。
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| 关 键 词： | 曲线拟合 身高 趋势 |
Study on the Curve Fitting of the Height Trend of Schoolboy between Shanxi Province and the Whole Country |
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| Wu Guogui Li Zhi.Study on the Curve Fitting of the Height Trend of Schoolboy between Shanxi Province and the Whole Country[J].BOJI(WUSHUKEXUE),2011,8(11):112-114. |
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| Authors: | Wu Guogui Li Zhi |
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| Institution: | Wu Guogui Li Zhi(Sport and Art Institute of North University of China,Taiyuan Shanxi 030051) |
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| Abstract: | Based on curve fitting, the paper fitted vertically the data of urban schoolboy at 6-22 years in Han nationality between the whole country and Shanxi province, selected the best curve fitting model,compared and analyzed optimization data, to explore its internal change ways. The study showed that urban students at 6-22 years in Han nationality have the same trend, the growth rate of students at various age in Shanxi province was higher than the national level, tended to be stable at 20 years, the average height value of adult students was a downward trend. |
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| Keywords: | curve httmg height trend |
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