What does maximum heart rate do for workout?

Maximum heart rate (MHR) is a key indicator of cardiovascular fitness and helps determine exercise intensity levels. By understanding MHR, individuals can tailor their workouts to target specific heart rate zones, optimizing fat burning, endurance, or performance. Training close to MHR can improve cardiovascular capacity, while maintaining lower intensities can enhance fat utilization and recovery. Monitoring MHR ensures workouts are effective and safe, reducing the risk of overtraining or injury.