Can This Workout Predict Your Half Marathon Time?

The “Fultzy 400s” is a 4x400m interval workout designed to assess an individual's half marathon potential. The workout consists of four 400m repeats at increasingly high intensities, with active recovery periods in between. The results of the workout can provide valuable insights into an individual's anaerobic capacity, lactate threshold, and overall running efficiency. The authors suggest that the “Fultzy 400s” can be a useful tool for runners looking to optimize their half marathon performance.