Ryan Hall & Dr. Clyde Wilson: "Starvation" Training for Runners

[TheZoelzer2]

i wish i had a track to run on.

[Walkingshadow1]

Oxygen debt is very misunderstood. Measurement of blood oxygen saturations shows that even intensely working muscles do NOT become ischemic. "Oxygen debt" is simply the Cori cycle converting excess serum lactate back to glucose and/or glycogen in the liver. This requires a net input of ATP and hence, oxygen (since the vast majority of ATP is produced aerobically).  The limiting factor is not oxygen availability, but the rate at which oxygen can be converted to ATP by working muscles.

[ashegam]

This is something that Tim Van Orden, who started runningraw, has been focusing on for a while. The result is you end up using more fat as your primary fuel as oppose to carbs. good stuff.