Last Monday night I went for a 6 mile run with my club. For me the pace was quite fast, and for the first 4 miles it was a bit of a struggle. However, I'm trying to speed up at the moment and so I put my head down and pressed on. At around about the start of mile 5 everything suddenly felt much easier. I felt stronger, my running felt smoother, my strides felt longer and I was able to speed up. I finished with a bit of a sprint and felt that I could have gone on happily. It was great!
Anyway, this weekend at a race a club member told me that this experience was probably related to the transition between aerobic and anaerobic running. She told me that when we begin to run anaerobically our bodies begint to oxygenate themselves on a cellular level.
Can anyone tell me anything more about this? Is there anything I can do to get to the anaerobic stage more quickly?