I’ve been asked several times about question 27 on page 46 of the week 4 course notes. The question asks about the steady state MAP during vigorous exercise. The answer is that MAP is increased.
The problem is that, as most of you will recall, in the lecture I did in the Human Simulation Laboratory I said that the MAP wouldn’t change or might decline a little bit with an initial drop followed by a reflexive increase that wouldn’t quite get back up to the starting point.
In fact, if you look at the real data in the figure in that lecture, the MAP increases just slightly in this figure. I don’t emphasize this in class because its due to a little understood central mechanism and the effect is very slight.