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Titolo:
Adolescent growth events in eight decades of Japanese cohort data: Sex differences
Autore:
Ali, MA; Lestrel, PE; Ohtsuki, F;
Indirizzi:
Tokyo Metropolitan Univ, Grad Sch Sci, Lab Human Morphol, Tokyo 1920397, Japan Tokyo Metropolitan Univ Tokyo Japan 1920397 orphol, Tokyo 1920397, Japan Univ Calif Los Angeles, Sch Dent, Sect Oral Biol, Los Angeles, CA USA UnivCalif Los Angeles Los Angeles CA USA Oral Biol, Los Angeles, CA USA
Titolo Testata:
AMERICAN JOURNAL OF HUMAN BIOLOGY
fascicolo: 3, volume: 13, anno: 2001,
pagine: 390 - 397
SICI:
1042-0533(200105/06)13:3<390:AGEIED>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHILDREN; MATURATION; STATURE; LENGTH; HEIGHT; SPURT; BOYS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Ohtsuki, F Tokyo Metropolitan Univ, Grad Sch Sci, Lab Human Morphol, 1-1 Minamiohsawa, Tokyo 1920397, Japan Tokyo Metropolitan Univ 1-1 Minamiohsawa Tokyo Japan 1920397 n
Citazione:
M.A. Ali et al., "Adolescent growth events in eight decades of Japanese cohort data: Sex differences", AM J HUM B, 13(3), 2001, pp. 390-397

Abstract

The presence of secular trends in sex differences for the onset or takeoffof the adolescent growth spurt and subsequent (adolescent) growth of Japanese boys and girls were investigated using data published in "The Statistical Report of the School Health Survey" of the Ministry of Education, Science, Sports and Culture, Japan. An optimum kernel regression method was used to derive the biological parameters of the adolescent growth curve. The sixparameters derived from the regression analysis were age at takeoff(ATO), height at takeoff(HTO), velocity at takeoff(VTO), peak height velocity (PHV), age at PHV (APHV), and height at PHV (HPHV). The sex difference in age at PHV is about 2.1 years. The sex difference in age at takeoff was about 2.1 years starting with the birth year of 1943, but has become almost insignificant with the birth year of 1980. After 1960, the sex difference in mean HPHV varied within 12-13 cm, but the difference in HTO showed a decreasing trend. After the birth year of 1911, the rate of growth at HTO for girls has become markedly greater than for boys. In contrast, the rate of growth atHPHV for girls has become significantly smaller than for boys (P c 0.05). Sex differences in ATO, HTO and VTO were significantly and negatively correlated with differences in APHV and HPHV, but positively correlated with thedifference in PHV. The sex difference in PHV had no relationship with the differences in APHV and HPHV. (C) 2001 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/07/20 alle ore 17:37:04