Used to do a lot of running at school, cross country, long distance etc etc but that was a loooong time ago then got older gave up on exercise started smoking etc etc. Have given up the smoking and back down the gym again & usually start or finish off with a run, quickest I've done so far was a 5k run (the machines don't do it in Miles ) & that was about 22 1/2 minutes which wasn't too bad I thought