We've known for a while that dynamic stretching is beneficial as it increases muscle and joint temperatures and can 'switch on' muscles ready for action.
The muscle firing rates increase in order to prepare your body for exercise. Exactly what you want pre run!
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On the flip side, there is increasing evidence that static stretching can result in a decrease in performance due in part to a reduction in the amount of force produced by a muscle.
In fact, some evidence suggests that over stretching a muscle means that this force reduction lasts for up to an hour after stretching. Therefore, it’s probably best to save the static stretching for after a run, this is when you want your muscles to relax - when the job's done!
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This article first appeared on Sydney Physiotherapy Solutions