Sports Medicine

, Volume 36, Issue 9, pp 723–732

Adaptive Skeletal Responses to Mechanical Loading during Adolescence

Leading Article

DOI: 10.2165/00007256-200636090-00001

Cite this article as:
Greene, D.A. & Naughton, G.A. Sports Med (2006) 36: 723. doi:10.2165/00007256-200636090-00001

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.

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