For years, the gold standard for gauging workout intensity was often a simple "how you feel" metric. And while perceived exertion is still used by many exercisers and athletes today, it’s a bit like navigating without GPS. On the other hand, your heart rate, and by extension heart rate zones, allow you to pinpoint exactly what your body is doing, every second of your run, cycle, or gym session.
Heart rate training zones are a powerful, data-driven approach that can unlock new levels of fitness and efficiency in your workouts. Think of your heart rate as your body’s internal speedometer – it adjusts constantly based on your effort level. Just as a car has different gears for different speeds, your heart beats at varying rates depending on the intensity of your exercise.
