View Full Version : Mountain biking and glycogen depletion.

09-20-2007, 12:28 PM
I started mountain biking about 2.5 years ago when I met my fiancee (she's been doing it for years). I've been strength-training/weightlifting for over 20 years now. I'm 37, 5'6" 180lbs, about 12%bf right now.
When I started mountain biking, I would "hit the wall" about an hour (give or take) into it. Just no more energy. I could keep going, just at a much reduced output. Competed in an adventure race April 22 this year. Brutal. 4 hours. Hit the wall at about an hour. Cramped quads 2 hours later. Gels helped a lot, but would only last 20 minutes or so until the cramps returned.

Anyway, now I can go about 2 hours before hitting the wall, so I'm either in better condition, my technique is more efficient, or both (or maybe crossfitting for the last year has me about twice as good). I drink whey/dextrose before and after (just like weight training). I eat bananas on the trail, and detour bars sometimes. Anything else I can do? Does pushing it after I hit the wall have any serious negative consequences like losing muscle (I'm maintaining my weight)?