This page forms exercise targets from an age-based maximum and the second heart-rate value entered.
| Input | What it means |
|---|---|
| Age (years) | Age in the time unit shown; most adult equations use completed years. |
| Target Heart Rate (THR) | The stated rate or percentage, entered using the scale and time period shown in the form. |
At age 40 with a baseline of 60 bpm, the 70% reserve target is 144 bpm.
Use the estimate to compare similar sessions or measurements taken under consistent conditions. A change in technique, measurement method or formula can change the result without a real change in fitness.
No. A formula summarizes a relationship observed under particular conditions. Technique, fatigue, body measurements and the testing protocol can change an actual performance or measurement.
Check which equation and input definitions each page uses. A change caused by switching methods is not necessarily a change in fitness.
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