Tired runner || Fatigued running

How does fatigue affect running performance?

There is no question that fatigue has a detrimental impact on running performance, and as you get tired your running speed decreases. From a purely biomechanical perspective, running speed is the product of cadence (the number of steps you take per minute) and step-length, and so it is of little surprise that as you fatigue, your running cadence and step-length both decrease). These changes in spatial-temporal parameters are associated with changes in your kinematics, and so increased knee flexion at foot-strike, decreased hip and knee range of motion,  and increased trunk-lean are observed. It is also likely that your stride-length becomes more variable.

Apparently the reduction in step-length caused by reducing hip extension at toe-off and reducing knee flexion at foot-strike are protective mechanisms for injury and for energy preservation. However, if step-length decreases with no increase in cadence (or if cadence remains constant or decreases), then running speed and thus performance decreaseSHOWNOTES:

What does this mean for your running? Here some useful links.
Your “how to do it” run streak Run 365 Days: Your 365 Day Run Streak

Brain Training For Runners': Your Mental Guide To Better Running.

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