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Body composition in postpubertal boy cyclists

H Rico1, M Revilla, L F Villa

  • 1Department of Medicine, Alcalá de Henares University (Madrid), Spain.

The Journal of Sports Medicine and Physical Fitness
|September 1, 1993
PubMed
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Young male cyclists showed lower bone mineral content and density compared to sedentary peers. This suggests cycling may negatively impact bone mass gain in adolescents, necessitating further research on optimal exercise guidelines.

Area of Science:

  • Sports Medicine
  • Pediatric Endocrinology
  • Exercise Physiology

Background:

  • Adolescence is a critical period for bone mass accrual.
  • The impact of intense endurance training on adolescent bone health requires further investigation.
  • Understanding exercise effects on body composition and bone development is crucial.

Purpose of the Study:

  • To assess the effect of prolonged cycling training on body composition in adolescent males.
  • To compare bone mineral content and density between young cyclists and sedentary peers.
  • To identify potential risks of cycling on bone mass acquisition during adolescence.

Main Methods:

  • Cross-sectional study comparing 22 male adolescent cyclists (15-19 years) with 22 age-matched sedentary males.

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  • Standardized measurements of body composition, including bone mineral content and density.
  • Controlled for similar food and calcium intake between groups.

    • Main Results:

    • Cyclists exhibited significantly lower total body bone mineral content and bone mineral density (p < 0.05).
    • No significant differences were observed in height, weight, BMI, body fat percentage, or lean mass.
    • Findings indicate a potential negative association between cycling and bone mass accrual.

    Conclusions:

    • Cycling training in adolescent males may be linked to reduced bone mass gain.
    • Current exercise recommendations for adolescents may need refinement regarding bone health.
    • Further experimental studies are needed to define optimal exercise parameters for adolescent bone development.