00:01
Okay, i want to answer this question, let's talk about energy sources.
00:04
Here says what is the main source of energy used by muscles during a marathon.
00:09
So remember that in marathon, you're going to require high levels of energy for your muscles in order to contract.
00:17
In case of, or first, the first source of energy that is going to be depleted is or comes from, it is going to come from phosphocritin.
00:30
This phosphocritin is going to add as a, a phosphate donor and practically is going to, this monocritin is practically going to donate a phosphate to atp and it is going to produce atp.
00:43
Okay, and this atp is going to be helpful for muscle contraction.
00:48
But it is going to, it is going to, this source of energy is going to deplete very fast during the first seconds of exercise in the same marathon too...