Ya I tried reading that and was completely lost but was thinking there has to be a way from catching guys doing epo
As far as EPO goes, it has a very short half life. If you microdose late at night, you can generally be clear by the morning. Generally if athletes test positive for epo its because they either a) injected too much b) missed the vein and injected into the flesh (thereby doubling the half life).
As far as the bio passport goes, the simple guide.
There are three or four key values
Haematocrit - hct - this is the percentage of blood that is made up of red blood cells (the oxygen carrying blood cells). Most peoples hct will be something between 35 and 45%, that is, 35 to 45% of their blood is comprised of red blood cells. The higher the value, the more oxygen the body can carry, the fitter you are essentially. Over 50% is considered doping, but in teh past athletes hae pushed that up to 60% or even more. The downside, the higher your hct the thicker your blood becomes. eventually to the point of death. we saw a spate of (largely unreported or glossed over) deaths in cycling in the nineties, and heart attack amongst seemingly young healthy athletes is one of sports dirty secrets. hct is mostly linked with EPO use, when you inject EPO, the body produces more rbc's.
then the passport...
the key's
Reticulocytes (retics) - these are the immature blood cells, the newly formed ones. normal range is that between .5 and 1.5% of blood cells are immature and outside of this range can be considered doping. Why? When you withdraw blood from the body (for later reinfusion as part of blood doping), the body sees there is less blood in the body, so it reacts by producing more retics, making more blood and so your retic % will increase. Coversely when an athlete reinfuses blood as part of blood doping the body see's there is loads of blood so stops producing more, so the retics fall.
Hemoglobin (hb) - this is the red stuff that carries the oxygen around the body. this has the opposite behaviour. When an athlete withdraws blood there is less blood in teh body and the Hb volume drops, when blood is reintroduced to the body via a transfusion the hb volume increases.
Off score - is a mathematical magic number that is reached by calculating Hb/Retic% against each other - Hb x 10 – 60 (square root of the reticulocyte %))
the off score in a clean athlete should always be pretty stable.. hb levels v retic levels will always have a fairly constant relationship.
If an off-score jumps by huge amounts (as we saw in the barnett/brown test data) then its indicitive of blood doping
If an off score is very high, over 105 (as we saw in Anderson silva test data he had off-scores of 95, 102 and 105.8) then that too, can be indicitive of blood doping
theres a prtty good guide/summary here by Ross Tucker (who knows his stuff, great guy)
https://sportsscientists.com/2011/03/the-biological-passport-legal-scientific-and-performance-views/