I'm trying to increase my speed for an upcoming 10K. I've never thought about this before; until now I've run for a set distance or a set amount of time, without worrying about speed. I've found that my speed has increased naturally as I've got fitter.
However I'd really like to have a go at giving my speed a boost over the next month. I'm wondering if I should focus on running shorter distances faster (to get used to running at an increased pace), interspersed with "normal" distances at my "normal" speed.
Or is there a better tried and tested approach?
Any advice? Many thanks!