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。811Please respect copyright.PENANAOboEKQ4MaO
811Please respect copyright.PENANAEkMtx7nTmY
811Please respect copyright.PENANAE6T0Rf85nv
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?811Please respect copyright.PENANATlPcDAt5bC
811Please respect copyright.PENANAfVcSRvYDtD
811Please respect copyright.PENANAb5Geuds7Rc
(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。811Please respect copyright.PENANASYQ5RrE44v
811Please respect copyright.PENANAcvUS8BjgcV
811Please respect copyright.PENANAe6WE7vdXGu
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。811Please respect copyright.PENANAIn0rSNDfAv
811Please respect copyright.PENANAtlDZxUDUUo
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。811Please respect copyright.PENANAx3nzKQqbNh
811Please respect copyright.PENANAUcdH4i18CG
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811Please respect copyright.PENANAOUbxnEmtzq
811Please respect copyright.PENANAZeIlPZVVsX
70kg x 42.195km=811Please respect copyright.PENANAiQpctDPbhv
2950kcal811Please respect copyright.PENANAYzbJ8K7zMC
811Please respect copyright.PENANAtkiq6RX1dI
811Please respect copyright.PENANAe21mMSycwe
(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811Please respect copyright.PENANAJcU6VyLp6N
811Please respect copyright.PENANAQT8ikSzpFy
70kg x 1000 x 2% x 9811Please respect copyright.PENANA3Kb0ts2SPR
=12600 kcal811Please respect copyright.PENANAD1uhlxoTDI
811Please respect copyright.PENANAXV7MWYFxZq
811Please respect copyright.PENANAn6w2Sf56vf
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!811Please respect copyright.PENANAFsocELykL9
811Please respect copyright.PENANA3wKiuW5iwR
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;811Please respect copyright.PENANARLIVjDldIH
811Please respect copyright.PENANA8rZo6JXCuO
此計算方式是假設整場馬拉松是平地鋪設,沒有高低鈄坡。811Please respect copyright.PENANAluZwdq44GJ
811Please respect copyright.PENANA4jGWgRwAW6
(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。811Please respect copyright.PENANA5tHxHHFWML
811Please respect copyright.PENANAXVBL1cKCgM
811Please respect copyright.PENANAf1eEImw3ug
811Please respect copyright.PENANAfQ7Jwzbiq1
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。811Please respect copyright.PENANArSXU2ErASA
811Please respect copyright.PENANAsL8CvJrhdy
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/toc811Please respect copyright.PENANApUIMFsXWMQ
811Please respect copyright.PENANA727bmafbFo
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。811Please respect copyright.PENANAx0aKIIITW4
811Please respect copyright.PENANAFo1SXwMKvw
Link:811Please respect copyright.PENANArP7w8SJ954
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio811Please respect copyright.PENANAay9oeLniWb
811Please respect copyright.PENANAj5qs0FQvQN
811Please respect copyright.PENANAEIDluUpiuw
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。811Please respect copyright.PENANAYX7qhVNgRa
https://www.instagram.com/potatopigtongue/811Please respect copyright.PENANAmAbmquzDsD
811Please respect copyright.PENANAGIp4h0Td36
811Please respect copyright.PENANAQv1o2zuPjj
Ref1:https://journals.physiology.org/doi/abs/10.1152/jappl.1963.18.2.367811Please respect copyright.PENANA9N4uwyl3Fa
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1859586/811Please respect copyright.PENANAXwReEPXHHq
arrow_back
科普專欄–薯不揀單
more_vert
-
info_outline 資料
-
toc 目錄
-
share 分享
-
format_color_text 介面設置
-
exposure_plus_1 推薦
-
打賞
-
report_problem 檢舉
-
account_circle 登入
X
科普專欄–薯不揀單
作者:
薯仔聞茱莉
篇 #83
深入淺出–點解瘦削運動員都能夠跑畢馬拉松全程?
喜歡 5
閱讀 807
書籤 148
campaign
催更 0
打賞
以 Facebook 帳號登入
或 註册/登入 以留言或加上書籤
按此加載下一章
X
每次催更後,作者都會收到通知!
smartphone100 → 催更
×
寫下你喜歡這個故事的地方
×
對此喜歡的人