There are numerous approaches to cardio training for cyclists.  Some cyclists focus on doing a lot of high-intensity interval training (HIIT), others tend to stick with moderate-intensity steady-state cardio workouts, and others use heart rate zones to guide heart rate training. Another worthwhile approach is polarized cardio. Polarized cardio splits the focus to the two … Continue reading What Is Polarized Cardio? Polarized Training Plan for Cyclists