What Is Cadence and Why It Matters Runners get injured a lot. And when I say a lot I mean a whole lot of injuries! It is expected that 56% of recreational runners and 90% of runners training for a marathon will sustain a running related injury each year. Approximately 50% of all running related injuries occur at the knee and the majority of the rest at the lower leg, ankle, hip and thigh. The reason for most of these injuries is the repeated forces applied to the lower extrem