Fat burning heart rate

The image depicts a "heart rate fuel profile" graph, illustrating the relationship between heart rate (horizontal axis) and the utilization of energy sources (fat and glycogen, vertical axis).

 

Fat Burning

Fat burning increases with rising heart rate, then peaks at a certain point (around 120-130 bpm) and subsequently declines.

 

Glycogen Utilization

Glycogen utilization continuously increases with rising heart rate, becoming dominant particularly in higher heart rate zones.

 

Crossover

The curves for fat and glycogen utilization intersect, indicating the point where the utilization of one energy source becomes dominant over the other.

 

Heart Rate Zones

Based on the graph, it can be observed that fat burning dominates during lower intensity workouts, while glycogen utilization becomes predominant during higher intensity workouts.

 

Key Takeaway

The "heart rate fuel profile" graph illustrates how the proportion of energy sources used by the body (fat vs. glycogen) changes as a function of heart rate:

 

Fat Burning

As heart rate increases, fat burning also rises, then reaches its maximum at approximately 120-130 bpm, after which it gradually decreases.

 

Glycogen Utilization

This energy source becomes increasingly dominant with rising heart rate, especially during higher intensity (higher heart rate) workouts.

 

Crossover Point

There is a point (typically around 120-130 bpm) where the rate of fat and glycogen utilization is equal, after which glycogen becomes the primary energy source.

 

Heart Rate Zones

At lower intensity (lower heart rate), fat utilization is dominant, while at higher intensity (higher heart rate), glycogen utilization becomes predominant.

 

This smartwatch not only displays the fat-burning heart rate but can also continuously track over 60 health and fitness indicators.