Zone 2 Cardio Training: Why Low-Intensity Exercise Is the Hottest Fitness Trend
What Is Zone 2 Cardio and Why Is Everyone Talking About It Zone 2 cardio has exploded in popularity, and for good reason. Unlike the high-intensity interval training that dominated fitness culture for years, Zone 2 training focuses on maintaining a low-to-moderate heart rate — typically 60 to 70 percent of your maximum — for extended periods. It sounds almost too easy to be effective, but the science behind it is compelling. ...