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。947Please respect copyright.PENANArEU2KsUJnu947Please respect copyright.PENANAa3peyTcqGB
947Please respect copyright.PENANAvTbP8unuIf
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?947Please respect copyright.PENANAxuCV4DthvN
947Please respect copyright.PENANAJw91s2jzsS
947Please respect copyright.PENANAtR7H9PBYlD
(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。947Please respect copyright.PENANAnTecRURwSZ947Please respect copyright.PENANACHk5oEER4R
947Please respect copyright.PENANAwU0ySNKPMC
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。947Please respect copyright.PENANA0QbnxwhTWr
947Please respect copyright.PENANAsbxoMmzL3z
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。947Please respect copyright.PENANAe7Vlg7jufK
947Please respect copyright.PENANAemE4AV1MJV
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947Please respect copyright.PENANA2wX5ERoJWP
947Please respect copyright.PENANA5ER4GVVUyO
70kg x 42.195km=947Please respect copyright.PENANA087cxA9UNT
2950kcal947Please respect copyright.PENANAk89gdDrPnH
947Please respect copyright.PENANAnf3m5iL8iX
947Please respect copyright.PENANAcunx6HF1ZZ
(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947Please respect copyright.PENANA0ipxAqRtSj
947Please respect copyright.PENANAiuPafKtWaR
70kg x 1000 x 2% x 9947Please respect copyright.PENANAYTSAuqcEUv
=12600 kcal947Please respect copyright.PENANAmnWWDoj8Po947Please respect copyright.PENANAk6PPUbrNNp
947Please respect copyright.PENANAnXWQff3iO9
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!947Please respect copyright.PENANAGaH1wIpH9H
947Please respect copyright.PENANAZwENkUTTWu
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;947Please respect copyright.PENANAT4plAwH1o1
947Please respect copyright.PENANAmo5RSqkyQt
此計算方式是假設整場馬拉松是平地鋪設,沒有高低鈄坡。947Please respect copyright.PENANAoKzbAIvuyx
947Please respect copyright.PENANA9NRuExiYEY
(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。947Please respect copyright.PENANANYkxiQTmyq947Please respect copyright.PENANAlmv7pFeuEF
947Please respect copyright.PENANAdgFu3YtA8T
947Please respect copyright.PENANAm4l904ggtR
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。947Please respect copyright.PENANArkYWYPHUmy
947Please respect copyright.PENANAN81lwaC1Rt
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/toc947Please respect copyright.PENANATEHw5X2ar0
947Please respect copyright.PENANAas4oEAew3x
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。947Please respect copyright.PENANAXWYVFxBTio
947Please respect copyright.PENANAOnKArhTT3p
Link:947Please respect copyright.PENANAGiRFQ5ogbo
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio947Please respect copyright.PENANAWGdgNlfmjP
947Please respect copyright.PENANADfHPeBSMlK
947Please respect copyright.PENANA4qCal22emw
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。947Please respect copyright.PENANAJ0kTVf5Arh
https://www.instagram.com/potatopigtongue/947Please respect copyright.PENANAOafgn8MvPm
947Please respect copyright.PENANAQAPnptU0gR
947Please respect copyright.PENANA6mUGI7hzeF
Ref1:https://journals.physiology.org/doi/abs/10.1152/jappl.1963.18.2.367947Please respect copyright.PENANAT4qYWxSufx
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1859586/947Please respect copyright.PENANADCQ5h2RS8V