just another gosling
Join Date: Feb 2007
Location: Everett, WA
Bikes: CoMo Speedster 2003, Trek 5200, CAAD 9, Fred 2004
Mentioned: 26 Post(s)
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On mountain rides I can't eat on the climbs much either, but I can drink. Stoker hands you the bottle? Or try a Camelbak. Or stop about every 1/2 hour. You gotta drink. When I go over the top is when I feed. I'll usually eat a couple hundred calories of liquid food right then, all at once, because the digestion starts on the descent. Meaning that I don't eat rest stop food much, if at all. I carry stuff I find edible with me, because I know what it is.
I take 1-2 Endurolytes an hour, religiously. I keep them in a plastic change purse up my shorts leg, or on the tandem a jersey pocket is fine because of Stoker. She fuels just like I do.
You probably cramped a little out of dehydration and lack of electrolytes, but mostly from the effort on the tandem. I find 1 mile on the tandem = 1.5 of those other kind of miles. Your feeling of exhaustion was probably just glycogen depletion, which you could have postponed by feeding more.
If I experience glycogen depletion, I can always tell because my HR drops off, like down into the lower 140s when climbing hard. If I'm not exhausted and my HR goes up, like into that same range on the flat, I'm dehydrated. If I start to notice either symptom, I get after it immediately. If dehydrated, I take 4 swallows of water every 5 minutes and increase my Endurolytes. If it's glycogen, I hit the liquid food harder and more frequently. I always have a water bottle with liquid food concentrated to 750 cal./bottle. One bottle should last me 3 hours, so I make sure it's gone at the end of that time. I drink enough so that I have to pee every 2 hours. If I don't, I know I'm dehydrated.
I have little awareness routines: for instance, I stand every 10 minutes and eat and drink every 15 minutes (normally). Keeping track of these times give my mind something to do and is an early warning. If I can't figure it out or remember, something's wrong with my fueling.
BTW, I'm a year older than you, and my HR is about the same. I figure 154 is LT, but 148 is a better LD climbing HR, though Stoker and I will frequently go to 155 on short climbs on a metric century length ride.
Last edited by Carbonfiberboy; 04-28-10 at 09:21 AM.