Last Sunday I did my first long run caveman style (eating the no carb way). This run came one week after the marathon so my quads were still a little tired from the race. During the week my runs at Crossfit had been slow and pained so I didn't have high hopes for the greatest run. Thankfully the plan had been to run super slow with a group so I wasn't worried about running out of steam, but I was worried about how bad my legs would hurt.
The day before, I went for my higher carb day, having mashed potatoes at lunch and sneaking a molasses muffin mini at dinner. This was nothing compared to a normal night before carb intake, but I was more worried about what I would eat for breakfast! I ended up eating some grapes and pistachios. I also couldn't use normal gatorade or gu, so I hoped that it wouldn't get to hot and I packed craisins to snack on.
The run wasn't too bad, but it also wasn't the best test of endurance since it was slow and we stopped ever 3 miles or so for an extended period of time. In the end I didn't feel like I was hindered, but I am not sure that is a true test.
On Tuesday I went out for a 3 mile weekday run. This was a better test of no-carb running. The first mile was pretty tough. I felt lethargic and keeping a pace under 10:30 felt impossible. I felt tired and my legs just wouldn't move. I kept pushing and trying to hold pace steady hoping it would get better. After a mile or so, my legs warmed up and my head cleared and the run got better. By the last mile I was averaging 10 minute pace, slower then normal but it felt a little better.
I think as I continue to run on this no-carb set up I will get use to how my muscles work without traditional carbs, but I don't think I would ever take on serious marathon training without my carbs!