| Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2014: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2013: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2012: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
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| Outline of Final Research Achievements |
The purpose of this study was to evaluate the adaptability of muscle-tendon unit functions and reveal the mechanisms during human movements through the measurement of biological data. We disclosed dynamics of the muscle-tendon units and their mechanical properties in the lower limb during running by ultrasound apparatus and a three-dimensional motion analysis system. Regarding the phenomenon of post-activation potentiation, the contraction intensity, exercise velocity and intensity of conditioning contraction were found to influence the force-producing capacity of skeletal muscles and movement performances. Furthermore, we found morphological adaptation of the tendinous tissues to muscle hypertrophy by resistance training. This study clarified some important factors of movement performance and the mechanisms of their improvement through in vivo evaluation of the dynamics and adaptability of muscle-tendon units in humans.
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