Running cadence has become a bit controversial with many claims that runners should shorten the stride and move the legs faster, ie increase the cadence. There is even suggestion that a cadence of 180 steps a minute is the ideal rate to prevent injury. There is no evidence that this is the case. Some runners do seem to benefit from it. The figure of 180 came from observations of elite runners, but just because elite runners run a certain way does not meet that the average runner should.