亮亮 asked in 健康一般保健受傷 · 7 years ago

什麼是 screw home mechanism

什麼是 screw home mechanism

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  • 7 years ago
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    螺旋回返機制(screw home mechanism)

    1. 起因於medical femoral condylar surface比lateral side 長1.5 cm,因此knee 由flexed到extened的最後20?,medical condyle繼續向前滑行(slide),而lateral condylar 在原地旋轉(spin),產生了Tibia相對Femur5~7?的external rotation.

    2. 在open-chain時,例如步態過程的swing phase,tibia相對Femur產生20external rotation.

    3.在close-chain時,例如做到站末期,femur相對tibia產生20?internal rotation.

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