TrackPacer, an LED string for tracks, helps runners train

Runner/Inventor Sees the Light – The system, typically installed on 400m athletic tracks, comes with an app to set the pace and switch between different training modes. Like so many successful runners, Alexandra Kline kept going even when others in her group did not. Now she’s the force behind a training device that can help runners max out their results in an increasingly competitive sport where the margin of victory is often razor thin. Kline developed a product called TrackPacer, a “digital track rabbit” that provides constant feedback to help runners reach their desired pace while training. Her goal is to change the way recreational and elite athletes train.