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Related Experiment Videos

Secular trends in pubertal development.

Johan Karlberg1

  • 1Clinical Trials Centre, University of Hong Kong, PR China. jpekarl@hkucc.hku.hk

Hormone Research
|June 18, 2002
PubMed
Summary
This summary is machine-generated.

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Secular trends show increased adult height and earlier puberty, but these are weakly linked. Childhood nutrition, especially obesity, significantly influences puberty timing, while birth size also plays a role.

Area of Science:

  • Pediatric endocrinology
  • Human growth and development
  • Public health

Background:

  • Global populations exhibit a secular trend of increasing mean final height in adulthood.
  • Concurrently, a trend towards earlier onset of puberty is observed, though less pronounced than height changes.

Purpose of the Study:

  • To examine the relationship between secular trends in pubertal development and secular trends in height.
  • To investigate factors influencing the timing of puberty.

Main Methods:

  • Comprehensive literature review encompassing cross-sectional, longitudinal, and twin studies.
  • Analysis of existing data on growth patterns and pubertal timing.

Main Results:

  • Increased adult height is largely attributed to earlier growth hormone-dependent growth phases in early life, correlating with childhood growth spurts, not pubertal timing.

Related Experiment Videos

  • Pubertal onset shows significant genetic influence and is strongly linked to childhood nutritional status, with overnutrition/obesity accelerating onset.
  • Birth size (shortness or thinness) is paradoxically associated with earlier pubertal maturation, contrasting its effect during childhood.

    • Conclusions:

    • Further longitudinal research is essential to elucidate the short- and long-term impacts of secular changes in height and puberty.
    • Understanding these trends is crucial for assessing their overall significance in human development.