Not built for running...

[Catrin]

Reading all of these posts on running is very interesting. I've decided that I am just not "built" for it - though that is probably an excuse. I can't jog two laps at the gym without gasping for air at the end and my heart-rate is at 90-95%...yet I can take the most intense spin-cycle class we have (and it is intense) AND spin on my own at equal intensity for an hour before spinning class and it doesn't tax me near as much. Working hard, oh yes, but it isn't too much - and it seems to be paying off in the endurance department - not getting away from spinning entirely, but am down so I can cycle

At my age, the shape of my knees, and bad feet from surgeries and structural problems and my asthma I shouldn't be running. I know that. Which is probably why I am getting interested in it (wadda'ya mean I can't do it?)

So I am curious, is there any truth in the idea that certain body types "take" to running more than others? To me this seems apparent - but I am not a runner so what do I know?