Blood doping and its detection

https://ashpublications.org/blood/article/118/9/2395/29508/Blood-doping-and-its-detection

by thunderbong • 2 years ago

23 37 2 years ago

3nf• 2 years ago

https://en.wikipedia.org/wiki/Johan_Bruyneel

max_• 2 years ago

I am too much of a layman to understand what technique the article is proposing to detect it. Could someone help me break it down?

I heard from somewhere that in blood doping, the athletes, blood is taken out and put in a freezer. Then close to the day of the competition the blood is simply put back (without any external chemicals).

I heard that this works because it improves your red blood cell count. And if your to combine it with fitness & workouts "you could do some damage".

How do the detect transfusion of your won blood? When it doesn't have any external chemicals?

lacrimacida• 2 years ago

From what you describe I don’t even understand how this is considered doping, unless the athlete is doing this to cover up for other substances in their blood during their training. Could anyone elaborate?

rpearl• 2 years ago

increased red blood cell count = increased capacity to carry oxygen = increased aerobic endurance

Lukas_Skywalker4• 2 years ago

Raising the amount of red blood cells gives you an advantage because the blood can carry more oxygen. This leads to a race where everyone tries to raise it as far as possible. This is quite dangerous, because the blood gets ever thicker (which leads to thrombosis, as with the cyclist Tom Simpson in 1967). Banning blood doping helps to protect the athletes as well.

nimih• 2 years ago

Blood doping is listed as a prohibited procedure by various sports organizations (e.g. the world anti-doping code), and thus is doping by their fiat. According to wikipedia, the Olympics first banned the practice in 1985, so reading commentary from that time might be illuminating if you're unsure as to why it might be considered cheating.

sonofhans• 2 years ago

This type of doping is strictly helpful. If it were allowed then everyone would have to do it. Is that what we want sports to turn into? Every athlete in a cot at the starting line, getting filled up with new blood?

raincole• 2 years ago

Doping is banned mainly for PR reason. The audience don't want to watch a sport where every medalist gets something injected into their body and people who refuse doing that have no chance.

mtlmtlmtlmtl2• 2 years ago

I don't claim to understand this paper very well either, but based on a skim it seems the general idea is to do longitudinal blood testing on an individual level to establish a baseline for blood parameters, to then be able to detect changes that can't easily be explained by normal physiological processes(e.g a sudden rise in hemoglobin).

This is similar to what has been suggested before, but due to many confounding factors the individualised baseline may be necessary to avoid false positives.

Lukas_Skywalker4• 2 years ago

There‘s a thing called „biological passport“ [0] where athletes are tested regularly for different biological parameters, including hemoglobin count. Any significant changes are suspicious.

[0] https://www.wada-ama.org/en/athlete-biological-passport

Fnoord• 2 years ago

I really applaud this practice, except I have needlephobia. Let us imagine a top athlete suffers from this, too (hypothesis, irrelevant if subject is genuine). What would happen? And at which point do amateurs get tested?

cenamus4• 2 years ago

They can actually detect it sometimes, but I don't know how prevalent those methods are and they keep it pretty secret anyways.

The blood is usually stored in regular transfusion bags, which are made of plastic, which contains plasticisers. Those slowly leech into the blood and can be detected when taking probes, how much of it and which type specifically they detect is another question, as you already got a bunch of plasticisers in your blood.

chii2• 2 years ago

couldn't you require the athlete to test for red blood cell count several weeks ahead of the event (randomly chosen, so they cannot dope right before the test), and then one more right on the day? If they're doping, won't you see an unusually high count compared to their previous count?

15155• 2 years ago

So saline infusions are disallowed, too?

refurb2• 2 years ago

The paper covers multiple blood doping method from transfusion, epo drugs, and gene transfer.

The interesting one is blood transfusion. The paper suggests that measuring certain antibody levels (change from baseline) can detect allogenic blood transfusion (blood from other individuals).

But for autologous blood transfer (removing blood, allowing the body to replace the blood cells, then injecting blood back to boost levels above normal) is impossible to detect. CO rebreathing measurements could be used but aren’t validated.

However, sports regulations have a max Hb cutoff so raising levels beyond a “high-normal” would disqualify you anyways. The only option is to raise levels if your normal Hb level is middle to low in the normal range.

throwboatyface• 2 years ago

As other people have pointed out, biological passports track markers across time. If you suddenly recieved a transfusion of your own blood it would be obvious from the sudden increase.

atomicnumber3• 2 years ago

If hemoglobin mass is so desirable, why don't all these super athletes simply train at high altitudes and then fly in right before showtime? I know it's probably because cheating is easier, but are athletes really so thoroughly averse to such an ascetic lifestyle that not a single one does it?

(Or is it just that even training in very thin air still doesn't compare to what you can do with cheating? Maybe that's more likely.)

Lukas_Skywalker4• 2 years ago

Many of them do. Distance runners often go to Kenya or St. Moritz. But yes, it‘s less effective than the illegal methods.

reissbaker• 2 years ago

AFAIK they do train at high elevation when possible; it's just that some also cheat too. The U.S. Olympic training center is located at over 6,000ft of elevation, in Colorado Springs, presumably for exactly this reason.

Some sports probably aren't very amenable to this sort of consistently-high-elevation training though — if you play for a specific city's sports team, for example, you're probably going to do most of your training and playtime near that city.

cenamus4• 2 years ago

Apparently it's even more effective to just train at sea level, as you can do so more effectively, you're not out of air all the time, and just sleep and recover at high altitude.

The GDR actually built big training halls/chambers that could be depressurised, in order to achieve some part of that effect.

Article im german [https://taz.de/Museum-im-alten-Trainingsbunker/!5539575/]

Lukas_Skywalker4• 2 years ago

The same method is still used by long distance runners. Nowadays, they sleep in a tent (indoors) where the oxygen concentration is artificially reduced to simulate sleeping at a high altitude: https://en.m.wikipedia.org/wiki/Altitude_tent

eCa• 2 years ago

Altitude camps, ie spending a week or two at altitude, a few weeks before targeted events is very common in cycling. The Canary Island of Tenerife, with roads up to 2300 meters is quite popular in the pre-season thanks to its great climate.

Badly timed such blocks of training, like doing it too close to the event the athlete is peaking for, is detrimental. The body needs time to recuperate.

mpreda• 2 years ago

"Live high, train low"

You do need good oxygen supply during training in order to fully utilize (and grow) the muscles.

Low oxygen (such as found at high altitude) is good for the non-training periods (e.g. during sleep), where it induces a hypoxia-adaptation reaction that consists among others in increased erythropoietin (EPO), resulting in increased hemoglobin, etc.

nonameiguess• 2 years ago

This literal proposal is impractical for virtually anyone as it requires living in a particular place all the time, but as others have pointed out, some simulation of this technique is extremely common. Sleeping in an artificial low pressure room or hyperbaric chamber is most common, but even the high-altitude camps are not just limited to truly elite athletes. We did this even in high school. My cross-country team was pretty good (we won two California state championships in four years) but still just high schoolers. The school was in Los Angeles but we spent two weeks at the end of every summer before fall semester started camping in the San Bernardino mountains doing two-a-days, usually doing a complete lap around Big Bear lake in the morning and then a shorter, faster run in the afternoon. But it's funny you mention it because I remember the guy who won the individual state championship my freshman year and took second overall in an open 5k I vaguely remember running right before the season started was a student at Rim of the World high school, which is located in Lake Arrowhead and he actually did live at high altitude.

telesilla• 2 years ago

Related - the best ever documentary about doping, Icarus. Enlightening and brilliant.

https://en.wikipedia.org/wiki/Icarus_(2017_film)

flopsamjetsam• 2 years ago

That doco was an amazing spiral, from "let's try doping as an amateur athlete" to "here's how Russia organised doping for the Winter Olympics."

Blood doping and its detection

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