Medical disclaimer
The information on this website is for general educational purposes only. It is not medical advice and is not a substitute for professional diagnosis or treatment.
Estimates, not prescriptions
Heart rate zones calculated by this site are estimates based on population formulas. Your actual heart rate response may differ substantially because of genetics, fitness, medication, illness, heat, altitude and other factors.
Check with a doctor first if you
- have, or think you may have, a heart condition, high blood pressure, diabetes or other chronic illness;
- take medication that affects heart rate or blood pressure (for example beta-blockers);
- are pregnant or recently gave birth;
- are new to exercise, returning after a long break, or over 65;
- have ever felt chest pain, dizziness or fainted during exercise.
Stop exercising and seek medical help if you experience
Chest pain or pressure, severe or unusual breathlessness, dizziness or light-headedness, fainting, or a racing or irregular heartbeat. In an emergency, call your local emergency number.
No doctor–patient relationship
Using this site or contacting us does not create a doctor–patient or other professional relationship. Autonex Pte Ltd accepts no liability for decisions made on the basis of information on this site.