heart-rate

The foundation of endurance fitness, built by running at a low intensity where the body primarily uses oxygen to burn fat for fuel.

A device that measures a runner's heart rate in beats per minute (bpm), used to gauge effort intensity.

Heart Rate Zones: Train Smarter, Not Harder

A popular training method created by Dr. Phil Maffetone, where training intensity is strictly limited to a heart rate of 180 minus your age.

The number of times your heart beats per minute while you are at complete rest. A key indicator of aerobic fitness and recovery.

Abbreviation for Resting Heart Rate, a key indicator of cardiovascular fitness and recovery.

A simple method to gauge running intensity based on your ability to speak.