PMID: 11934655Apr 6, 2002Paper

Paradoxical adaptation of mature radius to unilateral use in tennis playing

Bone
N Nara-AshizawaS Saitoh

Abstract

The positive effects of physical activity on human bone mass have been well documented in many cross-sectional studies comparing athletes with sedentary controls as well as in longitudinal follow-up. By applying peripheral quantitative computed tomography (pQCT), which has the advantage of measuring volumetric bone mineral density (BMD) and the ability to distinguish among trabecular and cortical components, it was demonstrated that cortical BMD of the dominant arm was not greater than that of the nondominant arm. Cortical drift toward the periosteal direction and an increase in cortical thickness resulted in an improvement of mechanical characteristics of the playing arm's midradius. An improvement in the mechanical properties of young adult bone in response to long-term exercise was therefore related to geometric adaptation, but not to an increase in BMD. The manner in which the recruitment and function of bone cells are coordinated differs between the growing and the nongrowing skeleton. In the former, modeling is the dominant mode, and in the latter it is remodeling. In the present study, the side-to-side difference of 92 middle-aged female tennis players who initiated training after bone had matured was analyzed by pQCT. T...Continue Reading

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Citations

Oct 31, 2006·Journal of Bone and Mineral Metabolism·Gaële DucherDaniel Courteix
Feb 1, 2008·The Proceedings of the Nutrition Society·C A Bailey, K Brooke-Wavell
May 17, 2007·British Journal of Sports Medicine·Babette M PluimDave Miley
Feb 18, 2014·Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA·A IrelandJ Rittweger
May 9, 2007·Journal of Clinical Densitometry : the Official Journal of the International Society for Clinical Densitometry·Jin-Young MinSung-Il Cho
Mar 19, 2005·Scandinavian Journal of Medicine & Science in Sports·Q J WangS Cheng
May 26, 2011·Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research·Gaele DucherRobin M Daly
Sep 5, 2008·Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research·Martin NilssonMattias Lorentzon
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Oct 26, 2018·Journal of Sports Sciences·Laurent ChapelleJan Taeymans
Apr 9, 2010·The Journal of Clinical Endocrinology and Metabolism·M NilssonM Lorentzon
Feb 25, 2003·Journal of Applied Physiology·LiJing LiuKumpei Tokuyama

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