Most Common Run Problem: Cadence

From Running Times

And while there is no perfect form, there are basic elements of good form, including landing over your center of gravity, a light, rapid cadence, minimal lateral rotation and, easier to spot than quantify, relaxed body position. What deviations from this basic model do experts most often see?

Daniels says that in young and old runners alike he's worked with, "The most common form problem was stride rate --bounding over the ground too slowly, with long strides. Runners are often told to work on a long stride, but that is more a function of getting fitter rather than just doing it. I never had a runner perform worse when I felt they needed a faster rhythm and they actually did learn to use a faster cadence."