1. What is Cardio Zone?

The cardio zone (70-80% of maximum heart rate) is the optimal intensity range for improving cardiovascular fitness. Exercising in this zone strengthens your heart and improves endurance.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Max\ HR \) — Maximum heart rate in beats per minute (bpm)
• \( 0.7 \) — Lower bound of cardio zone (70% of max HR)
• \( 0.8 \) — Upper bound of cardio zone (80% of max HR)

3. Importance of Cardio Zone

Details: Training in this zone improves aerobic capacity, burns fat efficiently, and is sustainable for longer durations. It's ideal for endurance training.

4. Using the Calculator

Tips: Enter your maximum heart rate in bpm. If unknown, estimate using 220 minus your age (though individual variations exist).

5. Frequently Asked Questions (FAQ)

Q1: How do I measure my maximum heart rate?
A: The most accurate way is through a supervised stress test. The "220 minus age" formula is a rough estimate.

Q2: How long should I stay in this zone?
A: For general fitness, aim for 20-60 minutes per session, 3-5 times per week.

Q3: Is this zone safe for beginners?
A: Beginners should start at the lower end (70%) and gradually increase intensity.

Q4: What if my heart rate goes above this zone?
A: Higher zones (80-90%) are for advanced training and should be used cautiously.

Q5: Does this apply to all ages?
A: Yes, but older individuals or those with health conditions should consult a doctor first.