Just had this thought while running with my dog and getting fatigued. Why does it feel like that? What is going on in the tissue to make it “burn?”
Just had this thought while running with my dog and getting fatigued. Why does it feel like that? What is going on in the tissue to make it “burn?”
Acid buildup in muscle tissue. The intense effort creates more waste chemicals than you bloodstream can handle so it builds up locally.
https://www.pfizer.com/news/articles/science_fact_or_science_fiction_lactic_acid_buildup_causes_muscle_fatigue_and_soreness
They’re asking about lungs
Yeah, I don’t think this answers the question unless we’re talking about the heart. The diaphragm is where all the muscle tissue involved in breathing is and that isn’t what’s hurting.
I’m no medical professional, but if I recall correctly, lactic acid is transported by the blood stream, especially when muscles aren’t built up to deal with the excess acid locally. Exercise will alter your blood’s pH even if you’re in shape. Blood also turns more acidic simply by the presence of more CO2 in the system, but that shouldn’t affect the pH too much.
That said, I can find no source online indicating that the change in pH is the cause of the burning feeling when exercising while out of shape.
Thanks, that was really interesting!
TIL bad chemicals in muscles make people’s lung tissue burn. 🙄