I had a question for you runners.
I was at the gym last night with a girl who knows a lot about weight training and exercise in general, which is great. However, we decided to finish off with treadmill and because I also want to train for 5K I decided to do intervals. It was only for 5 min, and I was doing 1 min @ 3MPH and 1 min @ 4MPH. She looked at me when we finished, and I had just run for the last min, and she said "Can you show me your heart rate?"
Half the time I don't believe the heart rate sensors because they tend to be either really high or really low. So I showed her, and she immediately gave me a lecture about how 170 is too high and I shouldn't be running like that or I'll hurt myself. It kind of hurt my pride a little.
So, is 170 dangerous? How am I going to train with C25K if my heart is going to do that? I know when to stop, I listen to my body, but I've done this before and have never had a problem.