Heart Rate Monitoring

Heart rate monitors are very useful for exercise when you use them with purpose — especially for structured training, safety, and tracking long‑term progress. They’re not essential for everyone, but they can turn “exercising by feel” into training that’s more effective and safer.

Heart rate monitors are most useful for hitting the right training intensity, preventing overtraining, and tracking cardiovascular fitness — but they should complement your own body awareness, not replace it.

What Heart Rate Monitors Actually Help With

1. Training at the Right Intensity

Most people think they’re training in the right zone — Heart rate monitors give real‑time feedback so you can stay in the correct zone for your goal:

• Zone 2 (≈72–82% max HR) improves aerobic capacity, fat metabolism, and endurance.

• Higher zones build speed, power, and VO₂ max.

Without a monitor, it’s easy to drift out of the intended zone.

2. Preventing Overtraining & Injury

Tracking heart rate variability (HRV) and resting heart rate can reveal early signs of fatigue or stress. This helps you adjust training before problems escalate.

3. Improving Safety

For beginners, older adults, or people returning from injury, monitors help avoid pushing too hard too soon. They’re especially useful if a doctor has advised monitoring exertion.

4. Tracking Progress Over Time

Monitors help you see improvements such as:

• Lower heart rate at the same pace

• Faster recovery after intervals

• Higher HRV (better resilience)

These are objective markers of cardiovascular fitness.

5. Motivation & Accountability

Many people find data motivating — seeing numbers improve can reinforce consistency. This is one reason wearables have become so popular.

Limitations You Should Know

Heart rate monitors are guides, not medical devices:

• Wrist sensors can be inaccurate during high‑movement activities.

• Readings vary with stress, sleep, hydration, and temperature.

• They can cause anxiety if someone becomes fixated on the numbers.

• They cannot diagnose heart problems.

Chest straps remain the most accurate option for training.

When They’re Worth Using

Heart rate monitors are especially useful if you:

• Follow structured training (running, cycling, rowing)

• Want to improve endurance efficiently

• Are managing health conditions with medical guidance

• Enjoy data and want precise feedback

They’re less necessary if you exercise casually and prefer to go by feel.

If you want to work out your heart rate without the aid of technology you can.

To find your MHR yourself you take your age away from 220. Therefore my MHR would be: 220-54 (my age) = 166. To significantly improve your cardiovascular fitness you need to work at an intensity of 60 – 85% of your MHR. For me this would be 0.6 x 166 = 99.6 and 0.85 x 166 = 141. Therefore whenever I train aerobically my pulse should be between 99 and 141 to ensure I am getting the most from my workout.