The whole method rests on a heart-rate ceiling most runners find embarrassingly slow: 180 minus your age. The counterintuitive part is the claim that running that gently, for months, is what eventually makes you fast. #Running #Triathlon #RunningScience #RunningHistory #TheLongRun

"20 minutes at threshold pace" is the tempo run everyone repeats. But dig into the physiology and the pace most runners actually hold rarely sits at the lactate threshold it's named for. The label outran the science. #Running #RunningScience #TempoRun #RunningHistory #TheLongRun