نتایج جستجو برای: pubertal health

تعداد نتایج: 983362  

Journal: :Hormone research 2003
Johan Karlberg Chi-Wai Kwan Lars Gelander Kerstin Albertsson-Wikland

Almost all available sets of height growth reference values are constructed in a cross-sectional manner, except for a few studies in which longitudinal sampling was used. Such reference values are, however, flawed because of considerable individual variation in the timing of puberty, especially among children with early or late pubertal maturation. An additional complicating factor is that the ...

Journal: :Developmental psychology 2014
Adriene M Beltz Robin P Corley Josh B Bricker Sally J Wadsworth Sheri A Berenbaum

Research on the role of puberty in adolescent psychological development requires attention to the meaning and measurement of pubertal development. Particular questions concern the utility of self-report, the need for complex models to describe pubertal development, the psychological significance of pubertal timing vs. tempo, and sex differences in the nature and psychological significance of pu...

2017
Lea LB Lauridsen Linn H Arendt Henrik Støvring Jørn Olsen Cecilia H Ramlau-Hansen

The evidence is scarce on the association between age at puberty and semen quality. A cohort of 320 Danish men aged 18-21 years enrolled in the "Healthy Habits for Two" birth cohort provided self-reported data on pubertal indicators and delivered semen and blood samples. The results indicated an association between older age at pubertal development and lower semen quality and altered reproducti...

2013
Nongnapat Jirawutthinan Ouyporn Panamonta Sumittra Jirawutthinan Chatchai Suesirisawat Manat Panamonta

Onset of puberty has shifted toward a younger age in the 21 century. The useful pubertal assessment in the individual child must be based on recent and reliable reference data from the same population. However, currently representative pubertal data for Thai girls are lacking. Therefore, we determine the current prevalence and mean ages at onset of pubertal characteristics in healthy urban Thai...

2016
T.L. Binkley B.L. Specker

OBJECTIVE Effects of time in moderate to vigorous physical activity (MVPA) and sitting (SIT) on bone were tested, hypothesizing that high MVPA would be positively associated with bone size and strength, offset effects of high SIT, and be mediated by lean mass. METHODS 155 children (79 male, 58 pubertal), 6-20 years (10.2±3.5 yr) were measured by dual-energy x-ray absorptiometry (DXA) and peri...

Journal: :Developmental psychology 2010
Jane Mendle K Paige Harden Jeanne Brooks-Gunn Julia A Graber

Although the sequence of pubertal maturation remains consistent across most individuals, the timing and tempo of development fluctuate widely. While past research has largely focused on the sequelae of pubertal timing, a faster tempo of maturation might also present special challenges to children for acclimating to new biological and social milestones. Using latent growth curve modeling, the pr...

2012
Mekdes K Gebremariam Ingunn H Bergh Lene F Andersen Yngvar Ommundsen Mona Bjelland Nanna Lien

BACKGROUND Whereas tracking and change in physical activity (PA) in children and adolescents have been well documented, studies investigating these patterns in its correlates are lacking. The present study aims to address this gap and in addition explore the impact of pubertal status on PA and its potential psychological and social-environmental correlates in a sample of Norwegian children over...

2016
ARPITA GHOSH RUDRANI MUKHERJEE DEBOSREE GHOSH

Any variations in the anthropometric parameters i.e., height, body mass, BMI, BSA, body fat %, WHR, WHtR etc., and basic physiological parameters i.e., haemoglobin content, respiratory rate, pulse rate, blood pressure etc., in female school children of pre-pubertal, pubertal and post-pubertal age groups from Bankura District and from the district of West Midnapore of West Bengal, India were stu...

Journal: :Journal of abnormal psychology 2013
Natalie Castellanos-Ryan Sophie Parent Frank Vitaro Richard E Tremblay Jean R Séguin

Most research linking early pubertal development to substance use has focused on the effects of pubertal timing (age at which a certain stage of pubertal development is reached or pubertal status at a particular age--related to the maturation disparity hypothesis), but little research has focused on pubertal tempo (rate of growth through pubertal stages--related to the maturation compression hy...

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