Running Economy

Running economy is how much energy you burn at a given pace — the hidden factor that lets two runners with the same fitness finish minutes apart. Better economy comes from efficient form: modest vertical oscillation, strong hip extension, no braking, the right cadence, and a relaxed body.

FilmableFilm this on your phone and TrueForm measures your body mechanics and tells you what to fix. You get angles, not a made-up score.