Some people have a rare disorder where they can’t feel pain, so I always wondered why they aren’t super athletes. Do they still feel physically tired when working out?
Not having the inherent physical ability will prevent super athletehood.
(Example) If you can’t process 70-75 or more ml/kg of oxygen, you will never come near a world class marathon. Pain is not a factor, build up of waste products from anaerobic metabolism brings muscle contraction to a halt (booty lock).
Pain serves a purpose. People who can’t feel pain need to take great care not to injure themselves.
Becoming a great athlete involves intense training, and the degree of suffering involved in that training is important for the athlete to judge how hard they should push themselves. If a person with the genetic endowment to become a great athlete were unable to feel pain, I think it would be extremely difficult for them to realize their potential, because they would so easily injure themselves through inability to judge an appropriate training intensity.
Not necessarily, muscles also do anaerobic respiration until glycogen becomes depleted.
Pain is a very important feedback mechanism for athletes (and everyone, really) People with CIP probably couldn’t become top notch athletes because they’d be trying to run/compete when injured.
Historically, I think a lot of people with this disorder died from infections, because they couldn’t tell that they were sick.
Names aren’t always an indicator of erudition. I, for example, am not a legendary German mathematician. In this case, however, I do think you should pay attention to the name of the person with whom you’re disputing physiology.
Glycogen is also depleted under entirely aerobic conditions (“hitting the wall” in a marathon, a cyclist “bonking”).
A runner finishing an 800, 1500, etc still has plenty of glycogen but finish in heavy oxygen debt. See the “booty lock” comment above.