introduce it in small amounts - e.g. schedule an interval session but do 25% volume or lower intensity than normal. Start small and slow then gradually build up, very gradually.
Thanks, seems like a good plan
I remember someone who had overtraining syndrome who started intervals with something like 20 seconds hard 2 minutes recovery. The idea was to get almost total recovery between sprints and also to make the legs work fast so stimulate the nerves etc to accept fast movement. Once you build up the legs are not being stressed by the speed, movement etc that fast running causes.
Might give that a go this week