by Matt Fitzgerald, Published Dec. 10, 2009, Updated May. 24, 2013 at 8:53 AM UTC
Study finds that runners can self-determine optimal recovery times between sprints without stopwatches.
by Matt Fitzgerald, Published Nov. 19, 2009, Updated Nov. 19, 2009 at 2:15 PM UTC
The American running superstar talks with Matt Fitzgerald about running by feel. Kara Goucher is one of the most exciting personalities in
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