Clarification of relationship of between peripheral and central fatigue

Research Project

Project/Area Number	22800090
Research Category	Grant-in-Aid for Research Activity Start-up
Allocation Type	Single-year Grants
Research Field	Sports science
Research Institution	National Institute of Technology, Kumamoto College (2011-2012) National Agency for the Advancement of Sports and Health (2010)
Principal Investigator	TAKAHASHI Kyohei 熊本高等専門学校 (20585492)
Project Period (FY)	2010 – 2012
Project Status	Completed (Fiscal Year 2012)
Budget Amount *help	¥3,029,000 (Direct Cost: ¥2,330,000、Indirect Cost: ¥699,000) Fiscal Year 2011: ¥1,417,000 (Direct Cost: ¥1,090,000、Indirect Cost: ¥327,000) Fiscal Year 2010: ¥1,612,000 (Direct Cost: ¥1,240,000、Indirect Cost: ¥372,000)
Keywords	MRI / T_1 / 脳血流 / 筋疲労 / T1 / T2 / 筋電図
Research Abstract	Longitudinal relaxation time (T_1) determined by 3.0-T magnetic resonance imaging of the tibialis anterior and extensor digitorum longus muscles increased gradually with muscle fatigue caused by three 120-s periods of repeated ankle dorsiflexion separated by 5洋in rest periods. T_1 values decreased in the recovery period, although they remained higher than the preexercise values. T_1 values for the soleus muscle were unchanged throughout the experiment. Results suggest that muscle T_1 values increase with increasing muscle fatigue.

Report

(3 results)