Heart Rate Charts
View heart rate zone time distribution and duration curves to understand the cardiovascular demands of your activities.
Heart Rate Analysis
Understand how your heart responds to training with zone time and duration curve analysis.
- HR zone time distribution
- Duration curves
- Zone-based analysis
More in Analyze Your Activities
Activity Timeline
View your activity with Coggan metrics plus unique Intervals.icu metrics. Automatic interval detection finds your efforts, with spike detection and correction for power and HR data.
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Power Charts
Analyze zone time distribution, view your 42-day power curve, histograms, and best efforts all within the context of a single activity.
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Decoupling
Track your aerobic fitness through cardiac drift analysis. The Power/HR Z2 metric provides a clear picture of your aerobic efficiency over time.
Learn more →