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。515Please respect copyright.PENANAYeIKRLkZ9i515Please respect copyright.PENANAtjdW0F3OH6
515Please respect copyright.PENANAYDBlJWRS7S
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。515Please respect copyright.PENANAzrBySe41AX
515Please respect copyright.PENANA2HV6WRMvrc
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。515Please respect copyright.PENANAu2CQ9LODbE
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(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?515Please respect copyright.PENANAME3dU3JBCg515Please respect copyright.PENANAP0eyQA0PIZ
515Please respect copyright.PENANAzSM7HaqGmj
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。515Please respect copyright.PENANATtXbBYwEFY
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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)。515Please respect copyright.PENANAMITVKcvigq
515Please respect copyright.PENANACjqTBrJa8q
(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。515Please respect copyright.PENANA2EKjcSGbWs515Please respect copyright.PENANAH7zuI6eRxZ
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每1kg每1km就會消耗1卡路里,只適用於跑步之上。515Please respect copyright.PENANAIFbp7b9uPo
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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。515Please respect copyright.PENANAd8PCBwwfNk
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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。515Please respect copyright.PENANABJ8gLZwUWn
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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。515Please respect copyright.PENANAb4Qyxfc9z3
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(圖3)究竟身體能夠提供得到幾多卡路里予運動上?515Please respect copyright.PENANAFQAouU2Hfp515Please respect copyright.PENANAzYQnuIXOx7
515Please respect copyright.PENANAoMIl7VBXIF
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?515Please respect copyright.PENANAugOhylNUpo
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好大部份的原因,均歸咎於名為HIT THE WALL的現象,下篇再續。515Please respect copyright.PENANAqqjQYuV3Cy
515Please respect copyright.PENANAJdFnkkA0mK
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。515Please respect copyright.PENANAiXfz4cyw2f
515Please respect copyright.PENANAuOLrbRXSKE
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/toc515Please respect copyright.PENANA9TxbscIhBc
515Please respect copyright.PENANABe03sXM4Lm
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。515Please respect copyright.PENANAeQ6FqoBRIy
515Please respect copyright.PENANAg0ke5iD2K1
Link:515Please respect copyright.PENANAXoRUTRvFV5
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio515Please respect copyright.PENANAftTfhiOWD4
515Please respect copyright.PENANAP2hH3K6jhr
515Please respect copyright.PENANAlo7KUv29Bg
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。515Please respect copyright.PENANAVFVJgrR69g
https://www.instagram.com/potatopigtongue/515Please respect copyright.PENANA7sDgVotehQ
515Please respect copyright.PENANA4H00B9NGac
Ref1:https://journals.physiology.org/doi/abs/10.1152/jappl.1963.18.2.367515Please respect copyright.PENANADNK1d7P9Qw
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1859586/515Please respect copyright.PENANAtQggSAyjLX
Ref3:https://www.nature.com/articles/s42255-020-0251-4515Please respect copyright.PENANAHyq7JVWSUc
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薯仔聞茱莉

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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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