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Sports Medicine

, Volume 36, Issue 9, pp 723–732 | Cite as

Adaptive Skeletal Responses to Mechanical Loading during Adolescence

  • David A. GreeneEmail author
  • Geraldine A. Naughton
Leading Article

Abstract

Adolescence, defined as the period between puberty and maturity, provides a window of opportunity for positive skeletal adaptations to mechanical loading unlike any other period in life. Age-related bone loss highlights the importance of accumulating sufficient bone mass during formative years. Adolescents who regularly engage in weight-bearing mechanical loading appear advantaged in site-specific markers of bone mass. The positive influence of physical activity on bone mineral accrual during growth has been extensively studied; however, few studies have examined skeletal responses to mechanical loading during adolescence. Weight-bearing physical activity, particularly high-impact sports such as gymnastics, is recognised as being more osteogenic than weight-supported activities. Unilateral loading activities such as tennis or squash provide a direct comparison of skeletal response without sampling bias or genetic confounding. Intervention and longitudinal studies show evidence of positive skeletal adaptations; however, sustainability of skeletal advantages remains unclear. Limitations inherent with single-plane dual x-ray absorptiometry technology are well recognised. The integration of densitometric data with structural responses to mechanical loading using 3-dimensional imaging technologies such as peripheral quantitative computed tomography and magnetic resonance imaging appears vital to enhancing our understanding of adolescent musculoskeletal health.

Keywords

Bone Mineral Density Femoral Neck Bone Mineral Content Lumbar Spine Bone Mineral Density Total Body Bone Mineral Content 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

Support from the New South Wales Sporting Injuries Committee and the New South Wales Institute of Sport was integral in the development of this review paper. The authors have no conflicts of interest that are directly relevant to the content of this review.

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Copyright information

© Adis Data Information BV 2006

Authors and Affiliations

  1. 1.School of Exercise Science, Centre of Physical Activity Across the Lifespan (CoPAAL)Australian Catholic UniversityStrathfieldAustralia

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