Updated onJune 25, 2026
Aidlab tracks heart rate zones in real time from ECG measured on the chest. Zones help you understand workout intensity and keep training aligned with your goal.
Heart rate zones are intensity ranges based on your maximum heart rate. Each range is associated with a different training focus, such as recovery, aerobic base, endurance, or maximum effort.
Aidlab identifies five distinct zones:
Without zone awareness, it is easy to go too hard on easy days or too easy on hard days. Zone tracking helps you control intensity, whether you are building endurance, working on VO₂ max, or recovering.
Because Aidlab measures from the chest, it can provide a more stable heart rate signal than wrist-based optical sensors during movement.
During running, heart rate helps you understand how hard your body is actually working. Pace alone can be misleading because heat, hills, fatigue, hydration, and recovery status can all change the effort required on a given day.
Heart rate monitoring is especially useful when you are building aerobic base, staying in a target zone, returning after illness, or controlling long runs and recovery runs. Two runs at the same pace can place very different stress on your body. If your heart rate is clearly higher than usual, it may suggest heat, dehydration, accumulated fatigue, or simply a harder training day.
Aidlab calculates zones using:
You can view your heart rate zones:
Zone data is calculated in real time during activities and logged for every session where heart rate is recorded.
To enable accurate heart rate zone tracking:
Missing profile data may reduce zone accuracy, as max HR estimates rely on personal parameters.
If you don't see heart rate zone data:
Zones are calculated only when heart rate is actively measured, and historical zone breakdowns are available per activity.
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