在長時間的運動下，脂肪會為身體帶來能源，支撐身體肌肉所需。馬拉松全程為42.195km，脂肪所提供的能源協助絕對不可或缺。989Please respect copyright.ＰＥＮＡＮＡkZmaUyh1Li
989Please respect copyright.ＰＥＮＡＮＡ3vLbDIeQia
989Please respect copyright.ＰＥＮＡＮＡqz7uox47ag
在這個前題下，為何為數不少的瘦削運動員都可以足夠應付長距離的馬拉松呢?989Please respect copyright.ＰＥＮＡＮＡYophdGfXOl
989Please respect copyright.ＰＥＮＡＮＡAUf7rA1k5v
989Please respect copyright.ＰＥＮＡＮＡbdK0bmkoo7
（圖2）在此，我們嘗試一下利用數學角度，以卡路里的消耗量探討這一個問題。989Please respect copyright.ＰＥＮＡＮＡb7dm2XTEmi
989Please respect copyright.ＰＥＮＡＮＡYhMGTSOWz8
989Please respect copyright.ＰＥＮＡＮＡbKej7K07Sd
有研究確認(Ref1,2)，身體消耗的卡路里是與行走總距離有關，而非行走速度。989Please respect copyright.ＰＥＮＡＮＡIchgYb0Ydn
989Please respect copyright.ＰＥＮＡＮＡTRQGOynTub
他們最終得出的公式為每1kg行走1km平地就會消耗1卡路里。989Please respect copyright.ＰＥＮＡＮＡRHEVHDxBR8
989Please respect copyright.ＰＥＮＡＮＡzW4yLdvzBQ
如果我們假設1個70kg的男人跑一場馬拉松，所消耗的總卡路里就會為989Please respect copyright.ＰＥＮＡＮＡcvRICYc1kj
989Please respect copyright.ＰＥＮＡＮＡRMAo8zMNcP
70kg x 42.195km=989Please respect copyright.ＰＥＮＡＮＡdrw0TuphiH
2950kcal989Please respect copyright.ＰＥＮＡＮＡVT4FQvzRsk
989Please respect copyright.ＰＥＮＡＮＡPBFcmOpRpI
989Please respect copyright.ＰＥＮＡＮＡXf7KGtK93v
（圖3）身體的脂肪每克約可以提供9kcal，如果我們用上最極端的例子，負責儲存能源的體脂只佔身體重量2% (正常為10-32%)的話，所提供得到的能源就會是989Please respect copyright.ＰＥＮＡＮＡDQHBPIiuB1
989Please respect copyright.ＰＥＮＡＮＡmRvVRFze0t
70kg x 1000 x 2% x 9989Please respect copyright.ＰＥＮＡＮＡHWqY0CYH8o
=12600 kcal989Please respect copyright.ＰＥＮＡＮＡG6iq3NiBIS
989Please respect copyright.ＰＥＮＡＮＡSvGbeEk1mm
989Please respect copyright.ＰＥＮＡＮＡcuzkP44Lq9
而基於每場馬拉松所消耗的卡路里僅為2950kcal關係，12600/2950 = 4.27，單憑身體脂肪所提供的能源，就足以應付4場馬拉松!989Please respect copyright.ＰＥＮＡＮＡe5DHmv293e
989Please respect copyright.ＰＥＮＡＮＡfvDwib87Ms
這個跑4次馬拉松的結果是以極低（儲存能量用的體脂2%）這個極端例子作計算，可以推算得到正常人的話絕對是遊刃有餘跑1場馬拉松；989Please respect copyright.ＰＥＮＡＮＡnpYGgTaubP
989Please respect copyright.ＰＥＮＡＮＡyhpVSd4wXd
此計算方式是假設整場馬拉松是平地鋪設，沒有高低鈄坡。989Please respect copyright.ＰＥＮＡＮＡ19hrIqmPDv
989Please respect copyright.ＰＥＮＡＮＡcpRp64T4B2
（圖4）不過，魔鬼在細節，這集反應熱烈的話，下一集將會探討這個計算方式的漏洞以及馬拉松選手經常會遇到所謂Hit The Wall的問題。989Please respect copyright.ＰＥＮＡＮＡqX1eQUs64b
989Please respect copyright.ＰＥＮＡＮＡ3vqZhBWL3c
989Please respect copyright.ＰＥＮＡＮＡMm15As5TXC
989Please respect copyright.ＰＥＮＡＮＡKKHsKCru3o
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。989Please respect copyright.ＰＥＮＡＮＡVsnXIRsvh8
989Please respect copyright.ＰＥＮＡＮＡ8yAx6iBPQw
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/toc989Please respect copyright.ＰＥＮＡＮＡhM0ohC1w2D
989Please respect copyright.ＰＥＮＡＮＡDgGDcpaWaD
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。989Please respect copyright.ＰＥＮＡＮＡZhUP68hp3A
989Please respect copyright.ＰＥＮＡＮＡ11xunvZ1py
Link:989Please respect copyright.ＰＥＮＡＮＡB5qbEtkjpE
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio989Please respect copyright.ＰＥＮＡＮＡULkRj6kvIe
989Please respect copyright.ＰＥＮＡＮＡMgyuwQ70N6
989Please respect copyright.ＰＥＮＡＮＡEM0vpaXtgj
有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。989Please respect copyright.ＰＥＮＡＮＡgpUfQQTqUd
https://www.instagram.com/potatopigtongue/989Please respect copyright.ＰＥＮＡＮＡ5Ny3J7AfWc
989Please respect copyright.ＰＥＮＡＮＡmuJqsqWucr
989Please respect copyright.ＰＥＮＡＮＡGgnsvKYDPu
Ref1:https://journals.physiology.org/doi/abs/10.1152/jappl.1963.18.2.367989Please respect copyright.ＰＥＮＡＮＡeEMf28zuTN
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1859586/989Please respect copyright.ＰＥＮＡＮＡep66AjzaPJ
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