Hi
I am carrying out a PHD investigating ‘The efficacy of Probiotic Supplementation on key neurotransmitters involved in Endurance Performance via manipulation of the Gut Brain Axis’.
As part of my research I aim to investigate the cause of perceived fatigue in endurance athletes. Potentially levels of plasma Tryptophan to establish Serotonin levels, I was also hoping to measure dopamine levels after a exercise protocol as a decrease would indicate fatigue.
My question therefore, is if there is biomarker to test for dopamine, was thinking tyrosine but can not seem to find papers on this.
Potentially an increase in adenosine would also indicate a decrease in dopamine
Any suggestions would be greatly appreciated?
Kind regards