I stumbled upon this technique watching a YouTube video by trail and ultra runner Gary House.
I have used fartleks in the past and this looked like a nice controlled (and flat) way to introduce a little speed work.
In a nutshell, it uses a football pitch to structure your session - running the diagonals and then recovering by jogging/walking along the side or end before repeating.
I have been out and tried this this morning (pretty pattern above) and really enjoyed it (6 diagonals was plenty for me today!😮💨🤣). Since being out with injury I have really stuck to slower runs which I love but I just want to try and build a little bit of speed work back in now.
Would love to hear if anyone else has used this - link to video below.🙂