Characteristic of muscle fiber structure and trainability in forelimb and trunk muscle of Thoroughbred horses.

• Project/Area Number: 19700500
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Sports science
• Research Institution: Yamaguchi University
• Principal Investigator: YAMANO Seiko Yamaguchi University, 総合科学実験センター, 技術職員 (00448276)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥3,360,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥360,000); Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2008: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2007: ¥1,800,000 (Direct Cost: ¥1,800,000)
• Keywords: サラブレッド / トレーニング / 骨格筋線維 / 体幹筋

Research Abstract

The purpose of this study was to investigate effects of training anddetraining in each muscle (Triceps brachii, Longissimus, gluteus medius and Semitendinosus) using by histochemical, immnohistochemical and biochemical analysis. Muscle fiber composition of each muscle and the characteristic of enzyme activity were analyzed. It was suggested that the adaptability to training and detraining were different in each muscle.