| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
The purpose was to experimentally examine the effects of epimysium and perimysium on maximal force and strain and to clarify the role of epimysium and perimysium in terms of joint amplification mechanism using numerical simulation. The maximum ankle dorsiflexion force and strain were measured in eight Wistar rats as a result of removal of the epimysium and perimysium. As a result, the maximum dorsiflexion force was reduced by 10% with removal of the epimysium and reduced by 30% with removals of both the epimysium and perimysium. The strain was then shortened by 15% in the proximal-distal direction and expanded by 15% in the medial-lateral direction. These results revealed that the epimysium and perimysium were found to affect the behavior of the muscle fascicle and ultimately reduce the maximal force, regardless of the contraction mode and contraction velocity.
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