You and your brain are supposed to be on the same team. You work hard with long runs, tempo runs and speed work to get your brain used to the idea of letting you run fast.  

But sometimes your mind can work against you. This is especially true when you first return to running after a foot injury. 

Your brain remembers your pre-injury ability. If not restrained, your brain instinctively wants to get you back to running at that same pace. 

If you just started running post-injury, a little more detail may help you avoid a common trap.  

You need to understand how powerful your mind is when it comes to your pace, your return to running and staying below your threshold for re-injury.