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。771Please respect copyright.PENANAK6slsX7cLx
771Please respect copyright.PENANAWf7reis2Ox
771Please respect copyright.PENANAm5fRFEIqwH
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。771Please respect copyright.PENANAYNIHB9ervh
771Please respect copyright.PENANA3aDfsw8ala
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。771Please respect copyright.PENANA1e8HLSJ3FO
771Please respect copyright.PENANACE8ESyYr84
(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?771Please respect copyright.PENANAGVs8dnN4OL
771Please respect copyright.PENANAigdgHD71Jw
771Please respect copyright.PENANAIjCl0FK0Lg
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。771Please respect copyright.PENANAWgymWTYl2T
771Please respect copyright.PENANAPK8wBJCsHD
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)。771Please respect copyright.PENANAhVU5X7yoJH
771Please respect copyright.PENANAOV59y2L6MB
(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。771Please respect copyright.PENANAU8HwEZ7ehg
771Please respect copyright.PENANA2gl2IkY4qp
771Please respect copyright.PENANAk8mLeW00pA
每1kg每1km就會消耗1卡路里,只適用於跑步之上。771Please respect copyright.PENANArjMbEt7OOw
771Please respect copyright.PENANAZU3pQCjQf2
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。771Please respect copyright.PENANAA6DD6oS5F7
771Please respect copyright.PENANA9c2081jzOu
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。771Please respect copyright.PENANAPa3eUq92b9
771Please respect copyright.PENANADjmzP80rS2
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。771Please respect copyright.PENANA3XA3xJrwFM
771Please respect copyright.PENANAZfzOURXmKK
771Please respect copyright.PENANAIbrUEp0SB4
(圖3)究竟身體能夠提供得到幾多卡路里予運動上?771Please respect copyright.PENANAJb9R5R5pvU
771Please respect copyright.PENANAKIEX2hfylv
771Please respect copyright.PENANAT3SPc00o0Y
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?771Please respect copyright.PENANAFNXWenrojf
771Please respect copyright.PENANAy6ML7mGtBo
好大部份的原因,均歸咎於名為HIT THE WALL的現象,下篇再續。771Please respect copyright.PENANATXJ42syvXw
771Please respect copyright.PENANAbKZ048c6aZ
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。771Please respect copyright.PENANAVxrBi4ZNkx
771Please respect copyright.PENANAXeS1x8LUqm
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/toc771Please respect copyright.PENANAqXCPzd4GBw
771Please respect copyright.PENANA4j6Te0LaDx
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。771Please respect copyright.PENANAEWRmwsNzZs
771Please respect copyright.PENANAWCfUUcz7Vl
Link:771Please respect copyright.PENANAIpXodFuXdU
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio771Please respect copyright.PENANATEfuSTr681
771Please respect copyright.PENANAYbx4e7Ni4q
771Please respect copyright.PENANAPzVEQpExGi
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。771Please respect copyright.PENANAfc5Usw6zOZ
https://www.instagram.com/potatopigtongue/771Please respect copyright.PENANAskubSyC2kq
771Please respect copyright.PENANA0BamweNWH4
Ref1:https://journals.physiology.org/doi/abs/10.1152/jappl.1963.18.2.367771Please respect copyright.PENANAal3H2xLJgz
Ref2:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1859586/771Please respect copyright.PENANAGWPz7zjFJN
Ref3:https://www.nature.com/articles/s42255-020-0251-4771Please respect copyright.PENANAI2StU1gM8U
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科普專欄–薯不揀單
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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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