It is my intention to explode some of the myths circulating at present.
The largest performance enhancements are seen when oxygen delivery to the tissues is increased, raising the anaerobic threshold and reducing resultant oxygen debt. This lowers tissue lactate, decreases perceived effort and enables faster recovery.
In the past microdosing EPO regimens resulted in higher red cell mass all year around. More recently CERA and Hematide have been used to good effect. However the most reliable method of increasing oxygen delivery is autologous blood transfusion.
During a three week tour the body is pushed to extreme, as a result the endocrine and haematological systems are severely stressed. Serum titres of both steroid and peptide hormones drop, particularly in the third week. Haemocrit would normally drop fractionally.
Athletes currently undergo transfusion perhaps twice in the three weeks, 24-48 hours before the queen stage or key time trials.
Stored autologous blood has a reduced p50 and is initially poor at releasing blood to the tissues. The level of 2-3 DPG decreases as storage time increases. Exercise, altitude, small doses of growth factors, free T3 and androgens accelerate the transition to a higher 2-3- DPG level and greater oxygen delivery.
Improper donation and storage leads to bacterial contamination and/or clumping turning the blood darker in colour.
Haemodilution occurs prior to testing, 1 litre of Hartmanns takes as little as 4 minutes to infuse through a 14G cannula. No reliable test is in place to detect autologous transfusion.
New pharmaceutical performance enhancers have additive effects to transfusion.
The largest performance enhancements are seen when oxygen delivery to the tissues is increased, raising the anaerobic threshold and reducing resultant oxygen debt. This lowers tissue lactate, decreases perceived effort and enables faster recovery.
In the past microdosing EPO regimens resulted in higher red cell mass all year around. More recently CERA and Hematide have been used to good effect. However the most reliable method of increasing oxygen delivery is autologous blood transfusion.
During a three week tour the body is pushed to extreme, as a result the endocrine and haematological systems are severely stressed. Serum titres of both steroid and peptide hormones drop, particularly in the third week. Haemocrit would normally drop fractionally.
Athletes currently undergo transfusion perhaps twice in the three weeks, 24-48 hours before the queen stage or key time trials.
Stored autologous blood has a reduced p50 and is initially poor at releasing blood to the tissues. The level of 2-3 DPG decreases as storage time increases. Exercise, altitude, small doses of growth factors, free T3 and androgens accelerate the transition to a higher 2-3- DPG level and greater oxygen delivery.
Improper donation and storage leads to bacterial contamination and/or clumping turning the blood darker in colour.
Haemodilution occurs prior to testing, 1 litre of Hartmanns takes as little as 4 minutes to infuse through a 14G cannula. No reliable test is in place to detect autologous transfusion.
New pharmaceutical performance enhancers have additive effects to transfusion.