Jakob Doping with Vulture Blood

Likely both Jakob and Katir are doping. Anyone around the sport knows the different running styles and various grimaces or placid expressions various athletes wear. However, at the peak of Lance Armstrong’s reign, several cyclists and coaches commented on his painless and empty expression. Mouth slightly opened and eyes locked ahead. Floyd Landis describes the feeling in various interviews as well. Plenty of them can be found in “Stop At Nothing: The Lance Armstrong Story”(cover picture is the expression exactly). This is not to say it is always the case, but the slow grind it out style without a flicker of emotion that Jakob posses is eerily similar.

Painless and empty expression from blood doping? More like Zen doping. Some sort of meditative trance

Sure buddy and abortion is a"good" thing.

I am not sure that this is a serious question, but if it is, the answer is - this can't be done and isn't a thing. Aside from what another poster said about an interspecies blood transfusion causing a fatal immune response, bird cells, in general, are about twice the size of human cells and they wouldn't even fit through our capillaries. There is so much more that is biologically wrong with this scenario but just on these two facts alone, its a non-starter.

He's dirty but the sport will protect its golden boy. Just like it protected FloJo. There is too much at stake.

You're right that Hb alphd-D has a higher affinity for oxygen, and would less readily release oxygen to the tissues under normoxic conditions. But when athletes are running near or past their aerobic capacity, would their blood-oxygen saturation not drop? Therefore causing oxygen to be bound less tightly to Hb alpha-D? I'm thinking that alpha-D would sort of act as a backup O2 source like this, where its performance enhancing effects don't kick in until an athlete is performing at their max aerobic capacity.

The DNA sequence of Hb alpha D from Aegyptus monachus is also known, so it would theoretically also be possible to genetically engineer an athletes erythroblasts to express this gene, then infuse them just as you would an hematopoietic stem cell transplant.

Thoughts?

Makes sense

it would drop, but the important thing is the difference in pH between the blood and the muscle. Once the muscle is acidic, its affinity for O2 likely far outweighs the hemoglobin's.

But on the other end, in the lungs, the air doesn't get acidic, so the high-affinity Hg still loads up just as fast.

Well, I can't think of many WR holders who have over a decade of consistently improving results, training with Olympians since age 10, and a reality TV show documenting their life for years. He doesn't seem like the most likely candidate imo.

Yep, great idea.

Just stand further back then usual, lol.