Over the course of my life I find myself interested in something and I immerse myself into said something. Among the subjects was Weather, Dinosaurs, Theoretical Physics, Comic Books, Computers, Weight lifting, Vegetarianism (nutrition), etc. Currently it is running.
A few years ago I tried to drop some weight, I was near 300 lbs. When I made little to no headway, I joined a weight loss club TOPS and had some success getting into the 260's. There was a long period of time were I would half hazardously attempt various things to loose weight with no real direction. Then a friend of mine lost weight and explained how in terms that made more sense then anything I had read or done thus far. So I dropped weight and got below 200. To facilitate weight loss I began walking to and from work. Then I upped the ante by running home. At some point my foot would start hurting and I would just hoof it for a couple of days. My doctor told me it was plantar fasciitis and gave me a golf ball to help massage my inflamed foot.
Then my weight loss buddy said I should check out a book "Born to Run". Again this so wonderfully explained running that I took it to heart. I tried forefoot running and found it was much easier and after the soreness of my calve muscles wore off I would run again. I was up to about three mile runs when I decided to do a 10K. This was about two years ago. I ran and completed the race but my leg muscles locked up so badly that walking itself was nigh impossible.
Clearly I did not quite get this way of running. Over the last couple of years I have figured out and resolved what I was doing wrong. Today, I decided to run a rout and in 45min I had run 4.8 miles. With no ill effect.
This is while wearing river shoes.