Resting heart rate: measurement and interpretation

Measurement

Resting heart rate is the number of heartbeats per minute while at rest. Measure after sitting or lying quietly, using the same position and similar time when tracking a trend. Count a pulse manually or use a validated device; devices and short counts can introduce error.

American Heart Association: target heart rates · MedlinePlus pulse measurement · CDC measuring physical-activity intensity

Interpretation and limits

Age, fitness, sleep, stress, temperature, hydration, illness and medicines can affect heart rate. A personal trend may provide context, but one value cannot diagnose fitness, recovery or overtraining. Persistent change, an irregular pulse, fainting, chest pain or concerning symptoms warrant appropriate medical advice rather than a training rule.

American Heart Association: target heart rates · MedlinePlus pulse measurement · CDC measuring physical-activity intensity

FAQ

When should I measure?

After quiet rest, consistently when comparing trends.

American Heart Association: target heart rates · MedlinePlus pulse measurement · CDC measuring physical-activity intensity

Does lower always mean fitter?

No. Many factors affect resting heart rate.

American Heart Association: target heart rates · MedlinePlus pulse measurement · CDC measuring physical-activity intensity

Can one reading diagnose overtraining?

No. It is not a standalone diagnosis.

American Heart Association: target heart rates · MedlinePlus pulse measurement · CDC measuring physical-activity intensity