Taking up running?

[Catrin]

My sister just started to try and run...she figured her asthma would help keep her from overdoing things but wound up with a stress fracture in her leg. This was her first attempt to start exercising since her youth...which reminded me of the Achilles tendon injury I got within a month of getting off the couch 3 years ago I suspect both of us were injured for the same reason.

Right now I am focusing on riding, I've a charity ride to prepare for in September and I WOULD like to be more proficient at mountain biking before the snow flies. I will think about running then and seek professional advice before taking on something new. For now running will have to be confined to my group training class...we don't normally run more than one 200 meter lap at a time - though we may do that multiple times during the hour class (not always).