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Wednesday, January 2, 2013

Don’t people run faster by only increasing stride length?


No. In our lab tests, we have tested a number of subjects running at a range of speeds. Most runners increased stride length more than frequency. However, all the runners we have tested also increase their frequency when they increase speed. For our purposes, it doesn’t matter whether people increase speed predominantly with increasing stride length as long as the relationship between speed and frequency is not perfectly flat (and we have yet to find a subject like that).