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Low Carb (Paleo) Half Marathon Report
You were running at a pretty slow pace. It
was a great job, don't get me wrong. I have never run a 1/2 marathon myself and don't really look forward to doing it, but I do run some 10ks and such and I know from cycling that if you exercise at a fairly easy pace you can do it LC. If you wanted to get into time, I feel that carbs will make you much faster. I posted my results about LC cycling a while back. Sure you can cycle 80 miles on LC at a relaxed pace, but if you want to increase speed, I found that to be too difficult and end up light in the head and so on. You are in pretty good shape i, and you should be very happy with your results. That is really excellent that you went out and did 1/2 a marathon. On other thing that you mentioned in your post was you knees didn't hurt. This could be a big benefit of LCing that really isn't explored much. It wouldn't surprise me if you weren't on to something with those findings. Excellent job! I hope to do that at some point. Maybe next year. Curt "Ignoramus12690" wrote in message ... I ran a half marathon today, in Quad Cities. Some highlights: - next to no carbs eaten yesterday and today (due to eating no vegs to avoid "runners trots" that I had on my previous extended run) - No Gatorade - No bonking - Ran without stopping even for a second - 2:08:50 running time - Feeling very good afterwards The weather was absolutely fabulous, fresh and sunny. The road was mostly flat, with some long but very gentle hills and bridges. Lots of music bands, kids, "Go daddy go" signs etc. One woman was running with a child carriage designed for running, with a kid in it, in fact running quite well despite that handicap! She also ran half marathon. Everyone was in a great mood. A very enjoyable setting. The purpose of my run was to perform an experiment and see how well I could perform running a serious (for me) distance of 13.02 miles without eating carbs. I tried to be conservative and basically jogged through the run at 9+ minutes per mile (closer to 10 but below 10). I do not think that I could run it substantially faster though, perhaps I could gain 4 or so minutes, had I known better how to distribute my efforts. The result of this experiment is that LC did not make me "bonk". In fact, I ran steadily throughout. Not terribly fast at 9+mpm, but, I think, being a little better or close to the median running time is not bad for the first timer with little relevant training. Since I ate low carb for quite a while, it is my supposition that for the most part, I ran using fat as fuel. After the run, I measured by blood glucose. My blood sugar was 59 plasma calibrated, which is not terribly far from my normal level these days (70). I was functioning fine at that level, went to a farm supply store in that town and bought stuff. I felt fine and was in a great mood. Then I drove home, picking up 13 90 lbs concrete patio blocks at menards. The point of this is that I was not, by any means, exhausted and still am not exhausted. I replenished my energy reserves with cooked bacon (smoked pork belly), and nuts. No carbs or fruits after the run, again, somewhat for experimental purposes as my diet does actually allow fruits. I just did not eat them lately due to wanting to take it slow to see if the diet works in its conservative form, without fruits. Maybe, if by the end of OCtober I do not start regaining, I will allow myself to eat some fruits. Picked a bag's worth of free fruits and cookies for my wife, but have not eaten any yet. Will probably eat some later today, as the experiment is basically over. What's most amazing is that my knees are basically fine and I could easily run more today. Before, I would be all in pain, having hard times going upstairs or the 3rd story of our house, whereas today it was not the case. My conclusions. 1. Saying that I cannot run an extended distance without carbs is baloney. Even though I am not, by any means, a highly trained athlete. 2. I would like to, tentatively, train for next year's Chicago Marathon and try to run under 4 hours. That's a major commitment of time, as I realize -- a marathon is a whole different animal -- so perhaps I will abandon that idea. 3. I definitely function better on a high fat diet. For a non-athletic-freak, recreationally running dufus like me, LC helped me to run the whole thing steadily. And my knees are also better. 4. Female runners are beautiful regardless of age. 5. While the max speed on LC, for a great athlete, may be not better than with carbs, endurance for the more average person is pretty unbeatable. I am still full of energy and have big landscaping plans and generator repair plans for tonight. I ran for 2 hours many years before, and was basically disabled for a few days due to knee pain, and was wasted for that day. Now, I am okay -- feeling the effects, but basically functioning well. 6. training runs on LC, if we accept that my glycogen stores are low, are using fat as fuel from the beginning. Ie, I run for 30 minutes, probably mostly using fat as fuel. (it is purely a speculation and I want to read more articles about this). So, I am training my fat oxidation energy system at every training run. A carb eater runs on carbs first, and does not train the fat oxidation system. So, once he runs out of carbs, he bonks since the fat oxidation system is not trained. That's instead of continuing running, but more slowly. Again, this is a pure wild assed speculation, but it makes some sense to me. I will read up on it. The implication of this speculation is that I could train for good performance on long runs, while running shorter traiing runs, as long as I eat LC. A very trained athlete eating carbs, would, of course, not bonk either. But I am not one. 7. I had no "electrolyte" issues. I drank a tiny bit of water with "lite salt" before the run, and drank water provided at the tables. Thanks to all who suggested to take this issue lightly. 8. I recommend to low carbers to run and ignore suggestions that running using fat as fuel is going to destroy them. (ask your doctor, YMMV, etc) I want to thank all rec.running participants who gave me their suggestions. What a great day! i |
#2
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I figured my comments on this would be what people didn't want to hear.
I've ridden my bicycle on LC and on carb load and there is no comparison. I ride much faster with less effort on carbs. I am not saying you can't do a marathon on LC. You may be able to run a double, but you would do it easier and faster on carbs. JMHO, Curt "curt" wrote in message news:qaY5d.4084$r%4.1296@trndny05... You were running at a pretty slow pace. It was a great job, don't get me wrong. I have never run a 1/2 marathon myself and don't really look forward to doing it, but I do run some 10ks and such and I know from cycling that if you exercise at a fairly easy pace you can do it LC. If you wanted to get into time, I feel that carbs will make you much faster. I posted my results about LC cycling a while back. Sure you can cycle 80 miles on LC at a relaxed pace, but if you want to increase speed, I found that to be too difficult and end up light in the head and so on. You are in pretty good shape i, and you should be very happy with your results. That is really excellent that you went out and did 1/2 a marathon. On other thing that you mentioned in your post was you knees didn't hurt. This could be a big benefit of LCing that really isn't explored much. It wouldn't surprise me if you weren't on to something with those findings. Excellent job! I hope to do that at some point. Maybe next year. Curt "Ignoramus12690" wrote in message ... I ran a half marathon today, in Quad Cities. Some highlights: - next to no carbs eaten yesterday and today (due to eating no vegs to avoid "runners trots" that I had on my previous extended run) - No Gatorade - No bonking - Ran without stopping even for a second - 2:08:50 running time - Feeling very good afterwards The weather was absolutely fabulous, fresh and sunny. The road was mostly flat, with some long but very gentle hills and bridges. Lots of music bands, kids, "Go daddy go" signs etc. One woman was running with a child carriage designed for running, with a kid in it, in fact running quite well despite that handicap! She also ran half marathon. Everyone was in a great mood. A very enjoyable setting. The purpose of my run was to perform an experiment and see how well I could perform running a serious (for me) distance of 13.02 miles without eating carbs. I tried to be conservative and basically jogged through the run at 9+ minutes per mile (closer to 10 but below 10). I do not think that I could run it substantially faster though, perhaps I could gain 4 or so minutes, had I known better how to distribute my efforts. The result of this experiment is that LC did not make me "bonk". In fact, I ran steadily throughout. Not terribly fast at 9+mpm, but, I think, being a little better or close to the median running time is not bad for the first timer with little relevant training. Since I ate low carb for quite a while, it is my supposition that for the most part, I ran using fat as fuel. After the run, I measured by blood glucose. My blood sugar was 59 plasma calibrated, which is not terribly far from my normal level these days (70). I was functioning fine at that level, went to a farm supply store in that town and bought stuff. I felt fine and was in a great mood. Then I drove home, picking up 13 90 lbs concrete patio blocks at menards. The point of this is that I was not, by any means, exhausted and still am not exhausted. I replenished my energy reserves with cooked bacon (smoked pork belly), and nuts. No carbs or fruits after the run, again, somewhat for experimental purposes as my diet does actually allow fruits. I just did not eat them lately due to wanting to take it slow to see if the diet works in its conservative form, without fruits. Maybe, if by the end of OCtober I do not start regaining, I will allow myself to eat some fruits. Picked a bag's worth of free fruits and cookies for my wife, but have not eaten any yet. Will probably eat some later today, as the experiment is basically over. What's most amazing is that my knees are basically fine and I could easily run more today. Before, I would be all in pain, having hard times going upstairs or the 3rd story of our house, whereas today it was not the case. My conclusions. 1. Saying that I cannot run an extended distance without carbs is baloney. Even though I am not, by any means, a highly trained athlete. 2. I would like to, tentatively, train for next year's Chicago Marathon and try to run under 4 hours. That's a major commitment of time, as I realize -- a marathon is a whole different animal -- so perhaps I will abandon that idea. 3. I definitely function better on a high fat diet. For a non-athletic-freak, recreationally running dufus like me, LC helped me to run the whole thing steadily. And my knees are also better. 4. Female runners are beautiful regardless of age. 5. While the max speed on LC, for a great athlete, may be not better than with carbs, endurance for the more average person is pretty unbeatable. I am still full of energy and have big landscaping plans and generator repair plans for tonight. I ran for 2 hours many years before, and was basically disabled for a few days due to knee pain, and was wasted for that day. Now, I am okay -- feeling the effects, but basically functioning well. 6. training runs on LC, if we accept that my glycogen stores are low, are using fat as fuel from the beginning. Ie, I run for 30 minutes, probably mostly using fat as fuel. (it is purely a speculation and I want to read more articles about this). So, I am training my fat oxidation energy system at every training run. A carb eater runs on carbs first, and does not train the fat oxidation system. So, once he runs out of carbs, he bonks since the fat oxidation system is not trained. That's instead of continuing running, but more slowly. Again, this is a pure wild assed speculation, but it makes some sense to me. I will read up on it. The implication of this speculation is that I could train for good performance on long runs, while running shorter traiing runs, as long as I eat LC. A very trained athlete eating carbs, would, of course, not bonk either. But I am not one. 7. I had no "electrolyte" issues. I drank a tiny bit of water with "lite salt" before the run, and drank water provided at the tables. Thanks to all who suggested to take this issue lightly. 8. I recommend to low carbers to run and ignore suggestions that running using fat as fuel is going to destroy them. (ask your doctor, YMMV, etc) I want to thank all rec.running participants who gave me their suggestions. What a great day! i |
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