身体発育現象としてのmid-growth spurtの検証

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The mid-growth spurt is considered to be a slight acceleration of growth which appears before the adolescent growth spurt. However, the essential significance of the mid-growth spurt has not been discussed as a structural mechanism of the physical growth phenomenon. It is analyzed from a statistical value concerning the local peak velocity (LPV) derived from the growth velocity curve where the scale of the mid-growth spurt is drawn by the wavelet interpolation method (WIM), and the essential meaning is verified from the relationship between the mid-growth spurt and the adolescent growth spurt. The WIM can be applied to the longitudinal growth data for height of boys aged 3 to 16 years, and it is detected as an event before the adolescent growth spurt when the LPV of the mid-growth spurt appears on the growth velocity curve. The mid-growth spurt can be detected before the adolescent growth spurt from two or three places on the growth velocity curve between the age of 4 years and the age at MPV. Especially, mid-spurt which appears just before the age at MPV is named before mid-spurt, and the case where it appears as follows forward of that was named mid-spurt 2. Before the mid-spurt appeared in all the data for 74 individuals, a significant correlation was observed between the ages at LPV of before mid-spurt and at MPV. A statistical value of the age at MPV and at LPV of before mid-spurt are 12.94 years old (SD=0.94) and 8.89 respectively years old (SD=1.62), and the average of the difference in the both ages is 4.05 years old (SD=1.59). A similar analysis to the data situation of 74 was applied to the longitudinal growth data of height in the boy of 260, and a result as similar to case of the data of 74 were derived. In the data of 296 (in-cluding the reference data: 222 data), the appearance rate of before mid-spurt was 78.5% (N:204/260). The reason for this is that the WIM is applied to the period from 6 to 18 years of age. However, the possibility of the appearance was considerably suggested in the data which did not appear. Therefore, it is possible to height growth to forecast the age at MPV from the age at LPV of before mid-spurt in some degree. If the mid-growth spurt (before the mid-spurt) is considered essentially as a physical growth mechanism, it can be newly proposed that will be able to become the prescience event.
社団法人日本体育学会の論文
2002-07-10

身体発育現象としてのmid-growth spurtの検証

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