The training journal
Clear guides to heart-rate zones, recovery, and the bigger picture.
Zone 2 Training
Zone 2 training is steady aerobic work below your first major metabolic threshold. Learn what it is, why it matters, how to find your range, and how to use it without overcomplicating your training.
Read story
Zone 2 Training
Most people can use 150-300 minutes of Zone 2-style aerobic work per week as a health baseline, while endurance athletes should scale Zone 2 by total training time, recovery, and goal.
Read story
Heart Rate Zones
Calculate heart rate zones by choosing a method, finding your max and resting heart rate, then applying zone percentages. Learn the formulas, examples, and when to use each method.
Read story
Heart Rate Zones
The five heart rate zones split cardio intensity from easy recovery to near-max intervals. Learn the percentages, how each zone feels, and how to calculate your own ranges.
Read storyZone Training Log
A privacy-first training log for iOS and Android. Free to start. Yours to make personal.
