Cardiac Zone (Training)

The 5 Zones of Sport

You know that day when you train thinking you’re going to burn fat, but in reality, you were almost fainting from fatigue and just wearing out your muscles in an Anaerobic exercise? The Training Heart Rate Zone is precisely the limit that guides athletes to be at the exact correct engine rotation, whether to do the so-called light Aerobic 'Zone 2,' or the deadly 'Zone 5.'

Karvonen Formula

By filling in not only your Age but also your resting frequency on our platform (how many BPMs your heart beats while you are awake), our intelligence performs the rigorous Karvonen equation (Heart Rate Reserve), perfectly drawing on the screen which slice you should aim for on the Apple Watch to reach your aesthetic or athletic goal with extreme safety.