Originally Posted by
f4rrest
It's possible that higher blood sugar could signal the respiratory processes to favor using a higher percentage of glycogen than it would in the absence of as much blood sugar concentration.
Evidence?
And how do my Lungs use glycogen, which is muscle fuel?
If I cannot breathe, sure, my body is more likely to go to glycogen (oxygenated glucose) but why would higher blood sugar do that? And in any case, if my body is burning all the fuel I can give it, blood sugar sin't going to spike and rop unless I fail to eat.
I am pretty sure sports science has examined a lot of this stuff. Probably better information at other online sources than BF (though the three posters who have contributed most have offered information which mostly matches my online research.)
To the OP: great job. I pretty much know exactly what you were feeling. Great description.
While I am sure you would have done the century if your friend hadn't gotten ill, the final ten miles probably would have been terrible, and the recovery would have been twice as long. You got lucky to get into that part of your range where your were stretched but not snapped, it seems.
Glad you enjoyed the ride.