Triathlete Magazine talks about odd running form in triathletes

In an interesting observation, Matt Russ, in an article written for Triathlete magazine , talks about why triathletes as a group seem to have a different running form than runners. The reason for this, as cited by Russ, is that triathletes swim, and there for have a more developed upper body, in particular shoulder muscles that change the way the upper body moves thus affecting our running form.

http://www.triathletemag.com/Departments/Training/2007/Why_do_triathletes_run_funny_.htm