B13 Mechanical Stimulation of Bone by Electrically-Controlled Muscle Contraction

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  • B13 電気的筋収縮制御を利用した骨の力学刺激法に関する研究(筋骨格系のバイオメカニクス1)
  • 電気的筋収縮制御を利用した骨の力学刺激法に関する研究(筋骨格系のバイオメカニクス1)
  • 電気的筋収縮制御を利用した骨の力学刺激法に関する研究
  • デンキテキ キンシュウシュク セイギョ オ リヨウシタ ホネ ノ リキガク シゲキホウ ニ カンスル ケンキュウ

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A purpose of this study is to measure bone strain induced electrically-controlled muscle contraction and compare with that recorded during walking exercise using an animal model. A strain gage technique was used to measure strain on a rat femur when a rectus femoris muscle is stimulated electrically in a sinusoidal waveform at a peak voltage of 0, 1, 3, or 6V, and during walking exercise(4m/min) by a treadmill. Bone strain recorded in 6V-muscle stimulation was 65% larger than that in treadmill exercise. This result suggests that electrically-controlled muscle contraction could be useful as a new mechanical stimulation method to elicit osteogenesis response.

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