Calorie calculation

每跑步半小時可消耗200至250卡路里，相等於四分一個傳統月餅份量。

(on.cc)

雖然 basal metabolic rate 應該不用計算，

但 absorption rate, energy for digestion 又怎計呢?

而且身體所儲存的 energy of fuel 會否100%轉化為

muscular contraction energy consumption
[energy for acceleration at the beginning，

energy needed for overcoming friction (main)，

energy for deceleration in the end] 以及

heat loss and sweating