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My partner has been running for a good few years. She is yet to run a sub 2hr Half Marathon. However, we were talking about it the other night, and she has never had any stiffness or pain after any runs - ever. Even when she did the Edinburgh Marathon, she was fine the next day.
When she runs, she feels she can't run any faster though, and this seems to be limited by her cardio fitness.
My assumption is that her physical fitness (muscles, bones etc) is better than her cardio vascular fitness (breathing etc). However, can any one give any advice? As she is getting demoralised by her inability to improve her speed.
Firstly, are our assumptions right?
Secondly, what kind of training or runs should she be focussing on to fix it?