30-15 Intermittent Fitness Test

During the 30-15 Intermittent Fitness Test (and it’s variant the Interval Shuttle Run Test (ISRT)), players alternately run 20 meter shuttles for 30 seconds and walk for 15 seconds, with increasing speed. It is an intermittent version of the beep test. Here are a group of athletes performing the 30-15 Intermittent Fitness Test