bioenergetics

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An Energy System Primer, Part 2

Being able to break down ATP for fuel is important for exercise, but also for living. We touched on its importance and how we access it for short-term, high intensity activities in our last post. In this post, we’re going to cover what happens if you want to exercise for longer than 6-10 seconds.   The ATP that we access for movements that last 6-10 seconds is not available in very large supplies. Estimates are something like 100 grams in...

An Energy System Primer, Part 1

Last week I was with a group of students who were learning about the carbon dioxide cycle in class. This is the one where plants produce oxygen, animals consume it and produce carbon dioxide, which the plants then consume. That gets into a discussion on what carbon dioxide is, what oxygen is, what would happen if part of the cycle was missing (i.e. what if all the plants died?), that sort of thing. But I stumped the class when I...