1. What is the THRZ Equation?

The THRZ (Target Heart Rate Zone) equation calculates your optimal heart rate range for exercise based on your Heart Rate Reserve (HRR), exercise intensity percentage, and resting heart rate. It helps determine the ideal heart rate range for cardiovascular training.

2. How Does the Calculator Work?

The calculator uses the THRZ equation:

Where:

• \( HRR \) — Heart Rate Reserve (Maximum HR - Resting HR)
• \( Intensity \) — Desired exercise intensity (as percentage)
• \( Resting HR \) — Resting heart rate (measured at complete rest)

Explanation: The equation accounts for your personal heart rate range to determine the optimal exercise intensity.

3. Importance of THRZ Calculation

Details: Calculating your target heart rate zone helps ensure you're exercising at the right intensity to achieve your fitness goals, whether it's fat burning, cardiovascular improvement, or endurance training.

4. Using the Calculator

Tips: Enter your HRR in bpm, desired intensity percentage (typically 50-85%), and resting heart rate in bpm. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I determine my HRR?
A: HRR is calculated as your maximum heart rate minus your resting heart rate. Maximum HR can be estimated as 220 minus your age.

Q2: What intensity percentage should I use?
A: For moderate exercise use 50-70%, for vigorous exercise use 70-85%. Beginners should start at lower intensities.

Q3: When should I measure my resting heart rate?
A: Measure first thing in the morning before getting out of bed for most accurate results.

Q4: Are there limitations to this calculation?
A: Individual variations in fitness level, medications, and health conditions can affect actual target zones.

Q5: Should I stay exactly in this zone during exercise?
A: The zone is a guideline. Listen to your body and adjust intensity based on how you feel.