Jeff Rieker, 35, moved to the outskirts of the Gardnerville Ranchos in early 2010.Rieker, a standout swimmer in his college and high school days, was dissatisfied with his fitness level and the extra pounds the years had attracted."I was definitely heavier than I would have liked," he said. "I felt like I needed to do something. I was finishing up my PhD program, had to finish my dissertation. There wasn't much time to work out much."So he started running.Short jogs at first, usually only two miles at a time. "I dealt with sore knees in the past," he said. "I …