High intensity interval training (HIIT) has been shown to increase V02 max if runners commit to a consistent training schedule.
If you aren’t sure how to get started, try replacing one of your exiting weekly sessions with an HIIT session. Apart from increasing your V02 max, it will increase the average speed that you are capable of maintaining over shorter races like 5k’s.
Lastly, if you don’t want do a bunch of research on the best routine, just do this.
- Run at 90% of max speed for 2 minutes then rest for 2 minutes
- Repeat this process 5 times
- As you get fitter, you can add more sets into the mix