2011 Fiscal Year Final Research Report

Analysis of femoral morphometrical and mechanical properties using by MRI in Japanese top athletes

Research Project

Project/Area Number	21700714
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Applied health science
Research Institution	National Agency for the Advancement of Sports and Health
Principal Investigator	HONDA Akiko 独立行政法人日本スポーツ振興センター国立スポーツ科学センター, スポーツ科学研究部, 契約研究員 (20413784)
Project Period (FY)	2009 – 2011
Keywords	骨形態 / 骨代謝 / アスリート / MRI
Research Abstract	The cross-sectional morphometrical and mechanical properties at mid-femur using MRI, and bone biomarkers were measured in Japanese top athletes, to investigate relationships between exercise(impact levels on bone) and osteogenic responses. The subjects were divided into 5 groups according to impact levels in each sex. As a result, higher impact groups had significantly greater cortical area, periosteal perimeter and bone strength compared to lower impact groups in both sexes. On the other hand, bone markers did not change among groups.