An Examination Regarding The PHV in Weight Growth of Male Students by Wavelet Interpolation Method

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This paper is to determine the PHV and examine the growth velocity curve which differenciated the growth distance curve approximated by the Wavelet Interpolation Method in weight growth. Longitudinal data of 98 male students aged 6 to 17 in weight were obtained retrospectively from health examination records in 1983. Especially, it was hypothesized that the true growth curve based upon the Multiresolution phenomenon (Self-similar phenomenon which like Fractal), described the growth curve approximated for the hypothesized true growth curve by the WIM. Mean PHV age in weight was 12.60 (years) with judging from the growth velocity curve approximated by the WIM. Mean differences between the PHV age in height and weight were 0.394 years (P<0.01). Furthermore, the correlation coefficients between the PHV age of height and weight were 0.4049 (P<0.01) and the regression equation of the PHV age in weight for in height was yt=0.5253xt+6.188. The appearance rate in the mid-growth spurt of weight was more than that of height.
日本発育発達学会の論文