做運動有助減肥,就等同721事件包含警黑合作成份一樣,是無容置疑的事情。1187Please respect copyright.PENANA0v3isae5uL1187Please respect copyright.PENANA6b8K50dcm1
1187Please respect copyright.PENANAcmLq6xCvYv
而本篇文章將嘗試以簡淺及略微深入兩種手法,以科學角度解釋做運動如何有助減肥。1187Please respect copyright.PENANAFXP4sZnrLc
1187Please respect copyright.PENANAOAQN0uv5mv
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(圖2)要用一句話來概括運動如何有助減肥的話,那就是運動能夠調教身體的肌肉細胞更有傾向及更有效率分解身體的脂肪。1187Please respect copyright.PENANAKnyJNRHdit1187Please respect copyright.PENANAZ5meyzO7NZ
1187Please respect copyright.PENANAQHw1dY4v46
當我們持績進行帶氧運動的話,脂肪便會被分解。而被分解的脂肪會經由血液循環系統抵達肌肉部位,在氧氣、水及各蛋白酶的幫助下,脂肪會在肌肉細胞裡轉化成為細胞所需的能源(ATP),支撐運動所需的消耗。1187Please respect copyright.PENANAjMHMHskpkG
1187Please respect copyright.PENANAA8DD2yFNhC
(圖3)綜合現今真實人類研究的數據及主流新陳代謝理論的話,不論男女,帶氧運動會對數個與脂肪新陳代謝有關的蛋白酶作出轉變。1187Please respect copyright.PENANAB3eWCxsd8Y1187Please respect copyright.PENANAe0tbjARRTr
1187Please respect copyright.PENANAJYedk5kwcB
當脂肪來到肌肉細胞外部的時候,位於肌肉細胞外部表面的mLPL(muscle lipoprotein lipase)會將脂肪分解成為更簡單的結構,從而使脂肪結構得以進入細胞內層(cytoplasm)。1187Please respect copyright.PENANAUtOFKnym3V
1187Please respect copyright.PENANAFhfs8oCNce
有長期運動習慣的人士,運動時候的mLPL最大功率會比沒有運動習慣的人士為高(Ref1,2)。1187Please respect copyright.PENANAv8bxI7wHW5
同時間,有研究指出進行為期8星期的帶氧運動的話,mLPL的功率會增加40-70%左右(Ref3,4)。1187Please respect copyright.PENANAJfQvcyItXA
1187Please respect copyright.PENANAY8pwM186kv
這顯示出持續運動有助肌肉細胞更有效率吸收脂肪。1187Please respect copyright.PENANAeOueeVlyHK
1187Please respect copyright.PENANAd4sYF1SIwz
脂肪結構進入細胞內層後,將會進行一系列的化學反應,然後再經由CPT1蛋白酶的幫助下進入mitochondria;1187Please respect copyright.PENANAkxxbtxL9uc
mitochondria是真正將脂肪結構轉化成為ATP能源的主要地方。1187Please respect copyright.PENANAB2XJreVB3W
1187Please respect copyright.PENANAx5DHP0yOvR
研究顯示,有運動習慣的人士,運動時候的CPT1最大功率會比沒有運動習慣的人士高出20-90%不等(Ref5,6,7)。1187Please respect copyright.PENANA6qFaIEW4Zc
1187Please respect copyright.PENANAxbZ4ZMs503
而當沒有運動習慣的人士持續進行8個月的帶氧運動後,CPT1的功率會比之前高出250%有多(Ref8)。1187Please respect copyright.PENANATHeq9UjJFI
1187Please respect copyright.PENANAMIWAb4ovIu
脂肪結構進入mitochondria後,四步化學反應會將它們變成為更簡單的結構(acetyl-CoA),其中之一步將依靠HAD蛋白酶執行。1187Please respect copyright.PENANAJrgEDYu0ll
1187Please respect copyright.PENANAEBE4oMTZU3
有研究指出持續數星期運動會促使HAD最大功率增加20-40%(Ref9,10)。而持續進行6星期HIIT運動(高強度間歇訓練,High-intensity interval training)亦會使HDA最大功率增加20-30%(Ref11,12)。1187Please respect copyright.PENANAHFQzontvDP
1187Please respect copyright.PENANAuT5ORH5tbB
脂肪結構變成為acetyl-CoA後,一系列的化學反應會再作進行,最後才能夠變成為ATP能源。1187Please respect copyright.PENANAY0QITKt2jZ
CS蛋白酶有份參與在其中一道的化學反應,而有著恆常運動習慣的人,其CS功率亦比沒有運動習慣的人士高出約33%(Ref13)。1187Please respect copyright.PENANAC5J5MoYhvP
1187Please respect copyright.PENANAIOZbWQolin
(圖4)之於糖份新陳代謝方面,裡頭有著與脂肪新陳代謝重疊的化學反應步驟。1187Please respect copyright.PENANAVETEy6bRFR
而長期運動的人士擁有比較高的PDK4功率(Ref14),能阻截糖份在mitochondria轉化成為ATP能源,改以在細胞內層(cytosol)進行,好讓脂肪能盡情地在Mitochondria裡轉化成為ATP能源。1187Please respect copyright.PENANAF2QcGJf6851187Please respect copyright.PENANAWGpGTTwCZq
1187Please respect copyright.PENANAFbx84V9Tvd
總括而言,持續進行帶氧運動的話,肌肉細胞會自動調節更有效率地分解脂肪,同時亦會傾為改用脂肪而非糖份作為ATP能源的原料。1187Please respect copyright.PENANArOUhrgroyM
1187Please respect copyright.PENANAzDNrk3KsuN
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這次深入中出嘗試加入了一些可能較難理解或較為沉悶的資料,若果反應未如理想的話,下篇將會調節回平日的深入淺出方法繼續探討各科學問題。1187Please respect copyright.PENANADGRwPtNuFy
1187Please respect copyright.PENANAlg00VYWGKe
若果大部份人覺得無問題的話,下篇將會以同等的方式講解一下運動後的數小時應否進食。1187Please respect copyright.PENANA8jdaDwuz1k
1187Please respect copyright.PENANAw3uDqOKQ7B
1187Please respect copyright.PENANAExQFPAoNVM
如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。1187Please respect copyright.PENANA8DYX43wcs4
1187Please respect copyright.PENANA08uUoeFp9q
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc1187Please respect copyright.PENANAFuD9LTYtcp
1187Please respect copyright.PENANASgc6Y1fB3Z
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。1187Please respect copyright.PENANAJMU5k7agX7
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Link:1187Please respect copyright.PENANA9HLZdCMdUB
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1187Please respect copyright.PENANAQ7bDf3l0OX
1187Please respect copyright.PENANAoyZJj0i01P
1187Please respect copyright.PENANAIrJDtnyn3K
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。1187Please respect copyright.PENANAeasuqWQEZ2
1187Please respect copyright.PENANATaH7Alj1Wr
Ref1:https://pubmed.ncbi.nlm.nih.gov/15155715/1187Please respect copyright.PENANApotwyDTMcL
Ref2:https://pubmed.ncbi.nlm.nih.gov/212665/1187Please respect copyright.PENANApoOqiVQPBS
Ref3:https://pubmed.ncbi.nlm.nih.gov/6667282/1187Please respect copyright.PENANAzG5wBfaYvr
Ref4:https://pubmed.ncbi.nlm.nih.gov/2643634/1187Please respect copyright.PENANAhc1KBMtWqC
Ref5:https://pubmed.ncbi.nlm.nih.gov/11912554/1187Please respect copyright.PENANADyyeG1rUIs
Ref6:https://pubmed.ncbi.nlm.nih.gov/9655768/1187Please respect copyright.PENANAMnQYxUrsTC
Ref7:https://pubmed.ncbi.nlm.nih.gov/10710500/1187Please respect copyright.PENANARFV6zmF8P5
Ref8:https://pubmed.ncbi.nlm.nih.gov/16464906/1187Please respect copyright.PENANA754u6Kx3Yd
Ref9:https://pubmed.ncbi.nlm.nih.gov/22235293/1187Please respect copyright.PENANAmVRTJdfHQj
Ref10:https://pubmed.ncbi.nlm.nih.gov/19106247/1187Please respect copyright.PENANA8N5nsQZ5Gq
Ref11:https://pubmed.ncbi.nlm.nih.gov/19088769/1187Please respect copyright.PENANAbbddMBVcdA
Ref12:https://pubmed.ncbi.nlm.nih.gov/17991697/1187Please respect copyright.PENANAZorzaAOb8G
Ref13:https://pubmed.ncbi.nlm.nih.gov/25057335/1187Please respect copyright.PENANAKHraGZwKzh
Ref14:https://pubmed.ncbi.nlm.nih.gov/15020699/1187Please respect copyright.PENANAorvtCqHXKa
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科普專欄–薯不揀單
作者:
薯仔聞茱莉

篇 #63
深入中出–做運動有助減肥的科學根據
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