上一篇用字錯誤,造成混亂,非常抱歉。今篇特設釐清因為用字錯誤所做成的概念困擾和錯誤。64Please respect copyright.PENANAW0rfy6h0aG64Please respect copyright.PENANAL7IoF0wEWN
64Please respect copyright.PENANA7Xv2kyxWOC
上一篇提及身體消耗的卡路里是與步行總距離有關,其正確用字應為跑步總距離,非步行總距離。64Please respect copyright.PENANAB0fN21g5Qd
64Please respect copyright.PENANAfHj39PowXm
最終所得出的公式應為每1kg跑步1km就會消耗1卡路里,而非每1kg步行1km就會消耗1卡路里。64Please respect copyright.PENANAS776PpJU0g
64Please respect copyright.PENANAwYysk8TtTU
(圖2)之於公式為每1kg跑步1km就會消耗1卡路里,究竟是如何得出來的呢?64Please respect copyright.PENANAj7BZfRNXpL64Please respect copyright.PENANAHllSBEsx6p
64Please respect copyright.PENANA9kwbne00Fg
這是根據跑者真實實驗數據所得,跑速越快的話,能量消耗亦會越大,而且兩者的關係亦成直線相關趨勢。64Please respect copyright.PENANAELvo7kKtcB
64Please respect copyright.PENANAXlChiLk0I3
如果我們將Y-axis的單位同X-axis的單位相除,就可以推算出一個kcal/kg/km的常數(constant)。64Please respect copyright.PENANAGg2HSMboRt
64Please respect copyright.PENANAMJdnwyOLkX
(圖3)上一篇因錯誤用字的關係,做成了假設體重一樣,跑步1km與行路1km消耗的卡路里均會一樣的假象,這裡特別在這方面略微深入講解一下。64Please respect copyright.PENANAp374eNrT5w64Please respect copyright.PENANADzE1dYGy2D
64Please respect copyright.PENANApoM8QZyECY
每1kg每1km就會消耗1卡路里,只適用於跑步之上。64Please respect copyright.PENANAo0WLtdlIZy
64Please respect copyright.PENANAMVAE4NWmDn
從左面的圖中得知,當步速高過10km/hr的時候,能量消耗與步速才會成直線相關趨勢,每1kg每1km就會消耗1卡路里才可套用。64Please respect copyright.PENANArVSKICBVrF
64Please respect copyright.PENANAupSUX1X1fO
而步速低過10km/hr的時候,能量消耗與步速再也不成直線相關趨勢,每1kg每1km就會消耗1卡路里的定律亦唔能夠得以套用。64Please respect copyright.PENANAYAOCRhKUY4
64Please respect copyright.PENANAzD1xMFACyg
雖然香港人節奏急速,但以10km/hr的速度「行路」就應該不會太可行。64Please respect copyright.PENANAbmMVYeXOba
64Please respect copyright.PENANAOYmPG4K07Y
64Please respect copyright.PENANAMHzYB8OUZK
(圖3)究竟身體能夠提供得到幾多卡路里予運動上?64Please respect copyright.PENANAlhOPxAZnNF64Please respect copyright.PENANA19CJHOrRqn
64Please respect copyright.PENANAxVUqeydQsy
如圖中所見,駭眼數字好足夠應付馬拉松的卡路里消耗,那麼為何這麼多人中途會無法支持下去呢?64Please respect copyright.PENANABRu5eKfJeT
64Please respect copyright.PENANAdKRjWHyRx0
好大部份的原因,均歸咎於名為HIT THE WALL的現象,下篇再續。64Please respect copyright.PENANAUfpLStLUSv
64Please respect copyright.PENANAqHhwI7QoxK
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。64Please respect copyright.PENANA4VqA2XBoGZ
64Please respect copyright.PENANAPoZ0atWixn
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/toc64Please respect copyright.PENANAW1utIQCQuv
64Please respect copyright.PENANABKp4VeK5SY
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。64Please respect copyright.PENANAOGsqKtmKz0
64Please respect copyright.PENANA56kjNVvLKh
Link:64Please respect copyright.PENANAKaqEYUe0l4
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio64Please respect copyright.PENANAd6k1Cs8mKc
64Please respect copyright.PENANAqCUpCINfTP
64Please respect copyright.PENANAQejYbSdU2r
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。64Please respect copyright.PENANAxJUbtE1T3B
https://www.instagram.com/potatopigtongue/64Please respect copyright.PENANAufch2x76uC
64Please respect copyright.PENANAOGMzqkvRU0
Ref1:https://journals.physiology.org/doi/abs/10.1152/jappl.1963.18.2.36764Please respect copyright.PENANAW226euLGMl
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1859586/64Please respect copyright.PENANAKEfbHcW1uY
Ref3:https://www.nature.com/articles/s42255-020-0251-464Please respect copyright.PENANAzOA9HbUrpX
copyright protection60PENANAThfm3S2ukE
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科普專欄–薯不揀單
Author:
薯仔聞茱莉

ISSUE #85
深入淺出–點解瘦削運動員都能夠跑畢馬拉松全程?(2)
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