1. What is Target Heart Rate For Stress Test?

The target heart rate for stress test represents 85% of an individual's maximum predicted heart rate, calculated using the standard formula (220 - age). This target is used during exercise stress testing to assess cardiovascular fitness and function.

2. How Does the Calculator Work?

The calculator uses the target heart rate formula:

Where:

• \( 220 \) — Standard maximum heart rate constant
• \( Age \) — Age in years
• \( 0.85 \) — 85% intensity multiplier for stress testing

Explanation: The formula estimates maximum heart rate by subtracting age from 220, then calculates the target heart rate at 85% of this maximum for stress testing purposes.

3. Importance of Target Heart Rate Calculation

Details: Accurate target heart rate calculation is crucial for conducting effective stress tests, assessing cardiovascular response to exercise, and evaluating heart function under controlled exertion conditions.

4. Using the Calculator

Tips: Enter age in years. The value must be valid (age between 1-120 years). The calculator will compute the target heart rate for stress testing at 85% of maximum predicted heart rate.

5. Frequently Asked Questions (FAQ)

Q1: Why use 85% of maximum heart rate for stress testing?
A: 85% represents a standardized submaximal intensity level that provides valuable diagnostic information while maintaining safety during cardiac stress testing.

Q2: Is the 220-age formula accurate for everyone?
A: While widely used, this formula provides an estimate. Individual variations exist based on fitness level, medications, and health conditions. Clinical judgment should always be applied.

Q3: What factors can affect target heart rate?
A: Fitness level, medications (especially beta-blockers), cardiovascular conditions, and individual physiological differences can all influence actual heart rate responses.

Q4: When should stress testing be performed?
A: Stress testing should be conducted under medical supervision for diagnostic purposes, risk assessment, or exercise prescription in appropriate clinical scenarios.

Q5: Are there alternative maximum heart rate formulas?
A: Yes, alternative formulas exist (such as 208 - 0.7 × age), but the 220-age formula remains widely used in clinical practice for stress testing protocols.