本研究嘗試使用肌肉效能的量化分析方式來分析人體使用不同健身機台時，下肢施力的情形。在實驗中，19位健康的大學生，於三種不同動作特性的機台進行測試，三軸張力計放置於機台上收集踩踏時反作用力的訊號，以及收集下肢肌電訊號，並計算為肌肉效能作以為比較的依據。結果發現：1.在股直肌方面，使用橢圓機之肌肉效能(0.0713±0.0465)顯著大於踏步機(0.0479±0.0253)；使用橢圓機之肌肉效能(0.0713±0.0465)也顯著大於滑步機(0.0389±0.0192)。2.在 股 二 頭 肌 方 面 ， 使 用 滑 步 機 之 肌 肉 效 能(0.0198±0.0109)顯 著 大 於 踏 步 機(0.0139±0.0112)。由結果可發現，橢圓機的股直肌使用程度相較於踏步機與滑步機明顯；而滑步機的股二頭肌的使用程度則是比踏步機明顯。因此肌肉效能的觀念或許能提供不同健身機台在肌肉使用量的評估方法。

Purpose:This study attempts toquantifymuscleefficacyanalysisto analyzelower limbforcesituationwhenhumanusedifferentfitnessmachine.Methods:19healthycollege students,testinthreedifferentmotion characteristics ofthe machine,triaxialtension meterloadcell placed on the pedal ofmachine to collect the reaction force,as well as the collection of lower limb EMG signals, andcalculated asmuscleefficacyasthe basisfor comparison.Results:In the rectus femoris, ellipticalmachines (0.0713 ± 0.0465)was significantly greater than Stepper (0.0479 ± 0.0253), andsignificantly greater than the air-walker (0.0389 ± 0.0192);and in the biceps femoris , Air-walker(0.0198 ± 0.0109) was significantly greater than the stepper (0.0139 ± 0.0112).Conciusion:Thisstudy concluded that the extent of muscle-used of the rectus femoris during the elliptical machinewas more obvious compared to stepper and air-walker;In addition, the extent of muscle-used ofbiceps femoris that air-walker is more obvious than stepper, the concept of Muscle efficacy might beable to provide a method to asses the extent of muscle-used during different training machine.

肌肉效能