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V02max

Old 09-26-09, 02:28 PM
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zp295
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V02max

Ok so I started riding again this year after a 5 yr break I have been averaging 120-200km a week and my longest ride was 70km. I wanted to get a 100km ride in as a goal so the other day I went for it and got 40km from home and decided to turn a round felt a little tired. I made it home 81.4km in 3hr and 1 min pretty good for me anyway my problems began about 10 minutes after my ride I started hyperventalating(first time ever) and my arms and hands went numb this lasted for about 10 minutes. So I looked it up after and it looks like I reached my O2max and screwed up my blood ph for a while. My question is how to prevent this on furure rides?Is it a question of hydration? I was drinking the whole ride but maybe need more? I am quite worried of going on another long ride as it may happen again, How do I know when I am ready to go longer my normal rides are 50km?

Thanks in advance Phill
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Old 09-26-09, 04:46 PM
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gregf83 
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That doesn't sound normal. I would go see a doctor. Riding at your VO2Max shouldn't invoke hyperventilation or numb hands.
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Old 09-26-09, 05:18 PM
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+1
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Old 09-27-09, 11:27 AM
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Always good to see your family doctor for undiagnosed symptoms. You could have had a low blood sugar episode from prolonged exercise without adequate glycogen stores and /or in-ride replenishment. There are numerous threads about this elsewhere. I think I had similar problems on my earlier long rides (50 mi or more) but never had any further problems when I take a small break, and drink sweetened electrolyte beverages and eat something (usually a carb).

One scenario could be:
Low blood sugar --> adrenalin release --> anxiety --> hyperventilation --> numbness

It seems to me that if you had a heart / lung / other ailment, you would have started to get chest pain, or shortness of breath during the maximal exertion, not after you got home.

Hope your checkup turns out well.
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