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。1030Please respect copyright.PENANAT6lVRWH4gu1030Please respect copyright.PENANAKq8HqMOgXe
1030Please respect copyright.PENANADJ8J5iXeLB
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?1030Please respect copyright.PENANA3c9AzxNUxh
1030Please respect copyright.PENANAVn6YXKbCXF
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(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。1030Please respect copyright.PENANAT6my3ph0dx1030Please respect copyright.PENANAcBK7GcH77i
1030Please respect copyright.PENANAjFa1UEcXfD
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。1030Please respect copyright.PENANAGKTX1jADWr
1030Please respect copyright.PENANAqD1xPhbNHH
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。1030Please respect copyright.PENANA25Ymsg5q5m
1030Please respect copyright.PENANA2MwsygcjzN
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1030Please respect copyright.PENANAn3gWGeJ0oP
1030Please respect copyright.PENANA5Wnv4xFtne
70kg x 42.195km=1030Please respect copyright.PENANALKMEjCfVp6
2950kcal1030Please respect copyright.PENANAlHam8UOKjL
1030Please respect copyright.PENANAxM38MTVNef
1030Please respect copyright.PENANAof4zdhTCQ4
(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1030Please respect copyright.PENANAG97O9Ysftd
1030Please respect copyright.PENANANeb2tNyyzt
70kg x 1000 x 2% x 91030Please respect copyright.PENANAEQxmOo583C
=12600 kcal1030Please respect copyright.PENANAtm9aA4cUCQ1030Please respect copyright.PENANARH1Y6fufem
1030Please respect copyright.PENANAYX78oKUmwQ
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!1030Please respect copyright.PENANA66CFVjfkXW
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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;1030Please respect copyright.PENANA1ifwLXfucK
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此計算方式是假設整場馬拉松是平地鋪設,沒有高低鈄坡。1030Please respect copyright.PENANAkSubMCFwCx
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(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。1030Please respect copyright.PENANAIM8kvONYx21030Please respect copyright.PENANAmzvTCJp6jD
1030Please respect copyright.PENANADQVIvZoN3H
1030Please respect copyright.PENANAeN36P4f6uE
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。1030Please respect copyright.PENANAvSvnYQitl7
1030Please respect copyright.PENANAJPPr7vDgY7
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/toc1030Please respect copyright.PENANAXKcHDUkrqx
1030Please respect copyright.PENANAorsBaA4tXW
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。1030Please respect copyright.PENANAM912UDUVyp
1030Please respect copyright.PENANAFxy7AGCWZB
Link:1030Please respect copyright.PENANAGFRWLGQAjp
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio1030Please respect copyright.PENANAyhLfKCKjgc
1030Please respect copyright.PENANA5Z45AEr9ZJ
1030Please respect copyright.PENANAWX54Atvdkh
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。1030Please respect copyright.PENANAliNGQpMhFo
https://www.instagram.com/potatopigtongue/1030Please respect copyright.PENANAIOi2gPtr9O
1030Please respect copyright.PENANAJ8gxtEyaN8
1030Please respect copyright.PENANAGd5APXKXtv
Ref1:https://journals.physiology.org/doi/abs/10.1152/jappl.1963.18.2.3671030Please respect copyright.PENANArlG65XlKvd
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1859586/1030Please respect copyright.PENANAxz8rqw15qe
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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?
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