I found an interesting article on running vs. walking. This is the kind of thing I might study if I go the exercise physiology route. In related news, Cool and I walked from our apartment to the Mission bridge along the opposite side of the river to the Green Street bridge and back to our place. We did 3 miles in one hour in the 88 degree heat.
http://www.runnersworld.com/article/0,7120,s6-242-304-311-8402-0,00.html
Catty Remarks