4 Comments
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Abel Orozco's avatar

What a discovery!! and gives a different perspective from what we already know! in this case coming directly from the brain! So, just to put it in different terms...would you agree we now need to say we need to train the brain instead of our legs? Endurance lies in the brain and not the body?

John Potts's avatar

What jumped out to me was this comment "they shifted toward carbohydrate use earlier and at lower intensities, suggesting their fuel-selection strategy under stress was altered." This infers that the brain itself is active in regulating fuel selection strategy. This is not a 100% natural response to training and intensity. What happens if you trick your brain into thinking you are making a harder or easier effort than what the clock suggests. Ways to do this is to alter the feedback of time and distance. Thoughts?

Brady Holmer's avatar

It’s fascinating to speculate on. But it’s not entirely surprising, especially if you look at some of those studies where simply swishing a carbohydrate solution around in your mouth can improve endurance. I think we are just beginning to learn about the interactions between the brain and the body and how they regulate fuel and energy availability. I wouldn’t really even know where to start!

John Potts's avatar

Great point! The question to me is "How does the brain make this communication?" Is it substance through fabricated molecules, is it nerve controlled through an as yet undiscovered pathway, or something else?