Confirmation regarding similarity and dissimilarity to physical growth curve of twins by cross-correlation function
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Section GROWTH and DEVELOPMENT
SECULAR PATTERNS OF GROWTH PROCESSES IN MODERN MOSCOW
INFANTS COMPARED TO THE INFANTS OF THE 1970’S
Fedotova Tatiana, Gorbacheva Anna, Sukhova Alla
Research Institute and Museum of Anthropology, Lomonosov Moscow State University, Moscow, Russia
The dynamics of the body dimensions (body length and mass, chest circumference) of Moscow infants of
2000’s from birth to 12 months compared to that of infants of 1970’s is observed. <...> A longitudinal
sample of about 500 children was formed, including monthly dynamics of physical development indices accompanied
by the full medical background. <...> The comparison of dynamic curves, preliminary standardized, of body length of boys
and girls describes the process of secular increase of modern infants length, more expressed in the second
half of the fi rst year of life and increasing towards the age of 12 months. <...> The comparison of dynamic curves of body mass and chest
circumference describes the opposite tendency of some decrease of the dimensions of modern children from
birth to 6 months from the level of 0.6 SD to zero. <...> Secular increase of length combined with the decrease of
mass and chest circumference means that the process of lepthosomization of body build in modern infants is
growing as compared to the second part of the 20th century. <...> The absence of the distinct secular differences of
the length growth curves through the fi rst 6 months of a child’s life is connected with the intensive compensatory
growth, which smooths the limitations of the prenatal growth in search of the stable growth curve. <...> Key words: physical development indices, growth curves, infants, secular trends
Contact information: Fedotova Tatiana, e-mail: tatiana.fedotova@mail.ru,
Gorbacheva Anna, e-mail: angoria@yandex.ru,
Sukhova Alla, e-mail: alla-sukhova@bk.ru.
51
CONFIRMATION REGARDING SIMILARITY AND DISSIMILARITY TO
PHYSICAL GROWTH CURVE OF TWINS BY CROSS-CORRELATION
FUNCTION
Fujii Katsunori
Graduate School of Business Administration and Computer Science, Aichi Institute of Technology, Toyota, Japan
Scientifi c verifi cation is impossible without quantitative assessment of the similarity or dissimilarity to the
curve of growth pattern of twins. <...> Thus it is important to approximate
the growth curve by the Wavelet Interpolation Method (WIM) proposed by Fujii (1999). <...> Cross correlation function
can then be <...>
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