The engine in your chest
The magic on your wrist
Mastering the five zones
The art of recovery
coach Peak Heart Rate Zone
Hit Zone Five, touching the ceiling! (Yeah, touching the ceiling!) / Just a minute of that maximum feeling! (That peak-high feeling!)
coach A comfortable, conversational pace at 60% to 70% of maximum heart rate stimulates mitochondria growth so you can run or cycle longer
coach Smartwatches use heart-rate data to identify the unproductive moderate-effort training trap.
coach Match activities to heart-rate zones to learn how to train smarter using wearable data.
Mitochondrial growth: Consistent Zone 2 training can double the volume of mitochondria in your muscle cells over just a few months of steady training.
A range of heartbeats per minute used to measure the intensity of physical exercise. Wrist-worn fitness trackers monitor these five intensity ranges to help athletes balance recovery and peak performance.
What cellular powerhouses grow in size and number when you train consistently in Zone 2?
How can you easily identify if you are exercising in Zone 2 without looking at your watch?
What byproduct builds up rapidly in your muscles when you push into Zone 4 and beyond?