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。1037Please respect copyright.PENANAokzRWziNZD1037Please respect copyright.PENANAyRMVl42yxM
1037Please respect copyright.PENANAJvZEYgzuds
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?1037Please respect copyright.PENANAd6jXjMLPkT
1037Please respect copyright.PENANAxHewed2O5q
1037Please respect copyright.PENANAq97bYiBnjJ
(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。1037Please respect copyright.PENANAjhBT3jcOBW1037Please respect copyright.PENANAl516HCm0PS
1037Please respect copyright.PENANAB5ZeP0UINb
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。1037Please respect copyright.PENANAY5VeggObUJ
1037Please respect copyright.PENANAJBijROI7Nv
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。1037Please respect copyright.PENANA8BFSwBSUrY
1037Please respect copyright.PENANAOjLA0OPG8k
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1037Please respect copyright.PENANAYoEsuQ7KHT
1037Please respect copyright.PENANAOjPk6CjBxg
70kg x 42.195km=1037Please respect copyright.PENANA8aiRqQjmnb
2950kcal1037Please respect copyright.PENANAULtcf55hZc
1037Please respect copyright.PENANAuUkKBzdbjo
1037Please respect copyright.PENANAhrlr0Fz9U9
(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1037Please respect copyright.PENANA9H0rufFgFa
1037Please respect copyright.PENANAsM5Stu06B8
70kg x 1000 x 2% x 91037Please respect copyright.PENANAt0UXuTR0HC
=12600 kcal1037Please respect copyright.PENANAywIeWFWxKO1037Please respect copyright.PENANAp9lu55veuX
1037Please respect copyright.PENANAot1YW7ct1x
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!1037Please respect copyright.PENANAMAuPkxKxWi
1037Please respect copyright.PENANAptBnMp4EEZ
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;1037Please respect copyright.PENANAsME0AFZABs
1037Please respect copyright.PENANAMuihNuSz8T
此計算方式是假設整場馬拉松是平地鋪設,沒有高低鈄坡。1037Please respect copyright.PENANAbjTmHfvllG
1037Please respect copyright.PENANAvXpqt7TgyH
(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。1037Please respect copyright.PENANA2CMca6mPkf1037Please respect copyright.PENANAyUG6RIPyEa
1037Please respect copyright.PENANA8aEAnEvQsj
1037Please respect copyright.PENANAsSj4UZsHB8
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。1037Please respect copyright.PENANA1zy28JwRLP
1037Please respect copyright.PENANABkDkrzAs1n
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/toc1037Please respect copyright.PENANANlwORvzoON
1037Please respect copyright.PENANAZiAyfYK7cS
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。1037Please respect copyright.PENANA5IviSX62JN
1037Please respect copyright.PENANAnYRcghkp4b
Link:1037Please respect copyright.PENANApqEfrII1RX
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1037Please respect copyright.PENANAxyCwxnTDXA
1037Please respect copyright.PENANADNLcOucnhH
1037Please respect copyright.PENANAtvPpGtRmDt
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。1037Please respect copyright.PENANAZuqEL2oYaw
https://www.instagram.com/potatopigtongue/1037Please respect copyright.PENANASGCxMNGLb0
1037Please respect copyright.PENANAmYlTlFUBLl
1037Please respect copyright.PENANA6vNMtX6y4A
Ref1:https://journals.physiology.org/doi/abs/10.1152/jappl.1963.18.2.3671037Please respect copyright.PENANAqtEF0CFnE7
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1859586/1037Please respect copyright.PENANAuFY3qzfVaG