By Mace Laith
Heart-rate recovery describes how quickly the pulse falls after exercise stops. It provides some information about how the heart and nervous system respond to activity. A systematic review and meta-analysis of heart-rate recovery found that slower recovery may have prognostic value in people with coronary artery disease. A single reading, however, cannot diagnose heart disease or determine personal risk.
The pulse rises during walking because the muscles need more oxygen-rich blood. After activity stops, it should begin to move back toward the resting level.
The speed of recovery depends on age, fitness, exercise intensity, heat, hydration, stress and medicines.
Beta blockers and other heart medicines can change the heart-rate response. People taking them should not compare their numbers with general fitness charts.
Smartwatches and exercise machines may provide an estimate, but device readings can be affected by movement, skin contact and other technical factors.
For a more useful personal comparison, use the same walking route, duration, pace and device. Look for a repeated pattern rather than judging one day.
A slower reading after poor sleep, illness, heat or dehydration does not automatically mean the heart has worsened.
Sudden major changes may still deserve medical review, particularly when they occur with symptoms.
People with known heart disease should ask their clinician what exercise intensity is safe. Cardiac rehabilitation may provide a supervised setting.
Do not perform an extreme test by running as hard as possible. An unsupervised maximum-effort test can be unsafe.
A comfortable walk can provide useful exercise without requiring a target heart rate for everyone. The talk test, symptoms and professional advice may be more suitable in some cases.
Stop walking if chest pressure, severe breathlessness, faintness, unusual weakness or an irregular rapid heartbeat occurs.
The recovery number should not be used to decide whether medicine is needed or whether a coronary blockage is present. These decisions require clinical assessment and appropriate tests.
Regular activity may improve fitness over time. Progress should be gradual, especially after illness, surgery or a long inactive period.
Madhavbaug provides information about its supervised heart-care programme. Readers can find broader information about its clinical services through Madhavbaug.
Seek urgent care for chest pain, fainting, severe breathlessness or a rapid heart rate that does not settle after stopping.
Heart-rate recovery can be one useful observation, but it should be interpreted with medical history, symptoms and professional evaluation.
