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。790Please respect copyright.PENANAYEVFTSGpEZ
790Please respect copyright.PENANARWT6QNiHxH
790Please respect copyright.PENANAOVjDRBF5Kv
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?790Please respect copyright.PENANAEZTzCNv9sv
790Please respect copyright.PENANAxgQLcefUaZ
790Please respect copyright.PENANAeYSUgin5sZ
(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。790Please respect copyright.PENANAIvGw5WZ3kE
790Please respect copyright.PENANAVpqFshtXFu
790Please respect copyright.PENANAdsaFsZP5oB
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。790Please respect copyright.PENANAbbizziIv8i
790Please respect copyright.PENANAERFEsWxO5K
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。790Please respect copyright.PENANAtOhE5C1504
790Please respect copyright.PENANAf7sFlsOZN2
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790Please respect copyright.PENANA0qFLP6LaLk
790Please respect copyright.PENANAHxNucVgyIl
70kg x 42.195km=790Please respect copyright.PENANAZrQEVgREk5
2950kcal790Please respect copyright.PENANAuePNqPHl6O
790Please respect copyright.PENANATbNkaiqOOK
790Please respect copyright.PENANAXlq55yoR7g
(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790Please respect copyright.PENANAD2n3xI7wzw
790Please respect copyright.PENANA8EYm4EoxhC
70kg x 1000 x 2% x 9790Please respect copyright.PENANAEIJG11RRRX
=12600 kcal790Please respect copyright.PENANApIWPycpmTx
790Please respect copyright.PENANArBZG9Zhkfk
790Please respect copyright.PENANAgopXjqzsJh
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!790Please respect copyright.PENANAapsfVIkbHb
790Please respect copyright.PENANAa5hH7dv9HD
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;790Please respect copyright.PENANAczq7IKXfAw
790Please respect copyright.PENANAn6nApMBVDA
此計算方式是假設整場馬拉松是平地鋪設,沒有高低鈄坡。790Please respect copyright.PENANAnjqATDpCfk
790Please respect copyright.PENANAAGz3Ye7SIw
(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。790Please respect copyright.PENANAilNmCGkoiN
790Please respect copyright.PENANAkTLFRacJiN
790Please respect copyright.PENANAXK4bI9QM8x
790Please respect copyright.PENANA9hlqAw3GuC
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。790Please respect copyright.PENANAGGPjCZYyWZ
790Please respect copyright.PENANArIWkjjRuoy
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/toc790Please respect copyright.PENANA9enLfc8gsR
790Please respect copyright.PENANAAZhqxwRzcf
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。790Please respect copyright.PENANArgms3mUB77
790Please respect copyright.PENANAEHQIMTQW58
Link:790Please respect copyright.PENANAxCI9pbIHrG
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio790Please respect copyright.PENANA4fuScXpZKz
790Please respect copyright.PENANANSi4JrzpX5
790Please respect copyright.PENANApa3fjYXn0h
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。790Please respect copyright.PENANAa0ItIszScP
https://www.instagram.com/potatopigtongue/790Please respect copyright.PENANAaX7ODqOTWL
790Please respect copyright.PENANAq2gl70ovFI
790Please respect copyright.PENANAFejP1RHuHy
Ref1:https://journals.physiology.org/doi/abs/10.1152/jappl.1963.18.2.367790Please respect copyright.PENANADcpK5KK8e1
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1859586/790Please respect copyright.PENANAKV3SoIouYe
arrow_back
科普專欄–薯不揀單
more_vert
-
info_outline Info
-
toc Table of Contents
-
share Share
-
format_color_text Display Settings
-
exposure_plus_1 Recommend
-
Sponsor
-
report_problem Report
-
account_circle Login
Search stories, writers or societies
Continue ReadingClear All
What Others Are ReadingRefresh
X
Never miss what's happening on Penana!
科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #83
深入淺出–點解瘦削運動員都能夠跑畢馬拉松全程?
LIKES 5
READS 786
BOOKMARKS 148
campaign
Request update 0
Sponsor
Login with Facebook
or Sign up/Login to comment or bookmark!
Click to load the next chapter
X
After each update request, the author will receive a notification!
smartphone100 → Request update
X
Sponsor again
Click to login
Login first to show your name as a sponsor.
Thank you for supporting the story! :)
Please Login first.
×
Write down what you like about the story
×
Reading Theme:
Font Size:
Line Spacing:
Paragraph Spacing:
Load the next issue automatically
Reset to default
×
People Who Like This