赤足鞋與一般慢跑鞋在長時間慢跑下對於下肢肌肉的影響

The effect of barefoot shoes and running shoes on lower limbs muscle during long duration running

洪維佐(Wei-Tso Hung)

指導教授 ： 吳汶蘭

高雄醫學大學/醫學院/運動醫學系碩士在職專班/碩士(2015年)

https://doi.org/10.6832/KMU.2015.00109

摘要

目前對赤足跑鞋之研究，大多還著重於人體基本的生物力學進行討論，多以膝內翻，膝外翻，後足內翻及後足外翻等人體關節角度，去討論赤足跑鞋的優缺點，但在日常生活跑步的下肢肌肉張力變化和局部肌肉活化，卻甚少去釐清，在其與一般跑鞋的跑步動作下，赤足跑鞋會比一般跑鞋，擁用較多的前腳掌著地（forefoot strike, FFS），用前腳掌著地跑法，使用肌群，將會跟一般跑鞋慣用腳跟著地跑法，有著極大不同，
故本研究將探討赤足跑鞋和一般跑鞋其跑步運動後其肌電活化和其肌肉張力之差異性。12位平常有跑步習慣的跑者，將執行30分鐘跑步測試，Delsys Trigno無線肌電圖系統和Myoton 肌肉張力測量儀，以及Casio高速攝影機將用來測量跑者在執行30分鐘跑步測試前後與過程的肌肉變化以及跑步型態的改變。

結果顯示， 使用赤足鞋跑者在著地型態方面，會逐漸由後足轉為中足著地形式，而Myoton 肌肉張力測量儀，發現赤足鞋跑者在跑步過後股直肌、脛前肌會有肌肉張力變小和剛性變小情形產生，一般跑鞋則是股直肌、脛前肌張力會變小，股二頭肌和腓骨長肌彈性變好之趨勢•肌肉活化方面，發現不分鞋款，跑者在股直肌、股二頭肌、比目魚肌最大活化，在不同時間點具有顯著相關性，上述變化可能跑者為適應鞋子和跑步機與平常跑步差異，進而改變原有跑步習慣，且在不同時期改變不同下肢肌肉徵召模式，以求更有效率的跑步姿勢

關鍵字

赤足跑鞋 ； 肌肉張力 ； 肌肉電位訊號

並列摘要

Currently, researches on bare foot running shoes were discussing mostly on basic biomechanics of human body. Knee valgus and varus, rear foot inversion and eversion were used to discuss the pros and cons of bare foot running shoes. However, the tension changes in the lower extremity muscles and local muscle activation in daily running have not been clarified. Comparing with running motion wearing normal running shoes, bare foot running shoes results in more forefoot strike (FFS). The muscles used in forefoot strike running are extremely different comparing with heel strike running in normal running shoes. Previous studies have shown that heel strike running would contribute to more ground reaction force and result in rear foot eversion, increasing the risk of 2nd and 3rd metatarsals fracture. For these two running shoes, the local muscle activation and muscle tension and elasticity of the runner have not been studied. Therefore, this study intend to investigate the differences of muscle activation and tension after running with normal and bare foot running shoes.

12 subjects with a habit of running were recruited and undergone a 30-minute running test. Delsys Trigno wireless electromyography system, Myoton muscle fatigue measuring system and Casio high speed cameras were utilized to measure the changes of muscles and running method before, during and after the 30-minute running test. In the results, the landing of bare foot running changed from rear foot to middle foot. From the Myoton muscle fatigue measuring system we found out that after running, the muscle tension of rectus femoris and tibialis anterior

decreased and muscle stiffness decreased in barefoot shoe runners. For normal runners, the muscle tension of rectus femoris and tibialis anterior also decreased and the elasticity of biceps femoris and peroneus longus enhanced.
For muscle activations, significant correlation in time was found in the maximum activation of rectus femoris, biceps femoris and soleus. We could see that during the period of transiting from rear foot to middle foot landing in bare foot runners, in order to reduce the ground reaction force, through different levels of muscle activation and tension changes of rectus femoris, biceps femoris and soleus they were able to continue the landing pattern.

並列關鍵字

barefoot shoe ； foot strike patterns type ； electromyography ； myotonometry

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