Performance Metrics
VO2 max, lactate threshold, heart rate zones, power output, and data-driven training.
Terms in This Category
5 termsVO2 Max
Maximum rate of oxygen consumption during exercise. The gold standard of aerobic fitness measurement.
Lactate Threshold
The exercise intensity at which lactate begins accumulating in the blood faster than it can be cleared.
Heart Rate Zones
Five training zones based on percentage of max heart rate, each targeting different physiological adaptations.
Pace (per mile/km)
Time to cover one mile or kilometer. The universal language of running speed (e.g., 8:00/mi).
Running Economy
How much oxygen you consume at a given pace — the "fuel efficiency" of your stride. Better economy means faster running at the same effort.
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This category covers key terms, concepts, and techniques used in endurance sports. Browse the terms below to learn definitions, training applications, and how they relate to your racing goals.
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