舌頭放哪,有差嗎? - 路跑 Road Running
By Steve
at 2017-03-03T19:38
at 2017-03-03T19:38
Table of Contents
大家慢跑呼吸時,會特別注意舌頭的位置嗎? 舌頭放鬆與頂上顎,是否對氧氣吸入量有影響,而間接影響路跑成績?
以下實驗只是偏向腿部肌力分析(包含爆發力與耐力),但對長距離有氧就沒有相關研究。
--
總結:
18名受試者,嘗試不同舌頭位置(頂上顎、放鬆、頂下顎),做單腿伸屈
(isokinetic knee extension)訓練。結果顯示,相較於放鬆,舌頭頂上顎可提升30%的力
量表現。
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舌頭與運動的關係?
運動期間,主要由中樞神經來控制肌肉活動強度。(釋放激素、傳遞神經訊號)
近期研究指出,不同的舌頭位置可引發對中樞神經不同的刺激(原文是皮質塑性/神經可塑
性cortical plasticity)。因此,舌頭是否會對運動造成間接影響,是研究的主要動機
(不知道他們怎麼騙到經費的,這動機非常的沒有說服力)
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實驗方法?
18名大學生(平均26y/74kg/175cm),嘗試不同舌頭的放置位置(頂上顎、放鬆、頂下顎)
http://imgur.com/eH5P81g
此圖為:A)舌頭放鬆,水平放在牙齒後方,B)往前往上顎頂,C)嘴張開,舌頭往下顎伸
比較三種舌頭姿勢,兩種負重(5RM和20RM)單腿伸屈的個人最佳成績
--
結果是?
離心收縮時,舌頭位置沒有明顯的影響。但向心收縮時,無論5RM或20RM的運動強度,舌
頭頂上顎的成績比其他兩者高出28-34%
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原因是?
不清楚,因為研究舌頭與肌肉關係的文獻非常少。因此,舌頭對多關節運動的影響仍然有
很多未知的部分。
但此實驗顯示(非常容易重複的實驗),只需要藉由舌頭頂上顎的小動作,可刺激更強的腿部肌肉。表明兩者之間有某些相關性,值得更進一步的研究。
--
所以下次跟朋友硬舉時,你可以說
"我把舌頭伸出來,先讓你三成"
--
[原文] The acute effect of the tongue position in the mouth on knee
isokinetic test performance: a highly surprising pilot study
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3940506/
--
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