Can anyone explain to me why the cycling community is still advocating for structured threshold workouts over simply riding in zone 3, given that both methods are supposed to achieve similar physiological adaptations. If the end goal is to stress the lactate threshold and increase muscle endurance, why is it necessary to meticulously plan out 20-minute blocks of high-intensity effort, complete with precision-pacing and calculated recoveries?
Isnt it just as effective to simply go out and ride at a moderate to high intensity, without all the fuss and bother of intervals and splits? After all, back in the day, cyclists didnt have the luxury of heart rate monitors and power meters, and yet they still managed to develop the kind of fitness that allowed them to compete at a world-class level.
Or is the argument that structured workouts allow for more efficient use of training time, and that by providing a clear plan and goals, riders are more likely to push themselves harder and get better results? But isnt that just a fancy way of saying that we need a special kind of permission slip to suffer, and that without it, were just not going to be motivated enough to do the hard work thats required to get fit?