1. What is the Modified Bruce Protocol?

The Modified Bruce Protocol is a variation of the standard Bruce treadmill test used for cardiac stress testing. It begins with lower workload increments, making it more suitable for elderly or less fit patients.

2. How Does the Calculator Work?

The calculator uses the Modified Bruce METs equation:

Where:

• \( T \) — Time in minutes on the treadmill

Explanation: The equation estimates metabolic equivalents (METs) based on the duration of exercise achieved during the Modified Bruce protocol.

3. Importance of METs Calculation

Details: METs provide a standardized way to estimate exercise intensity and functional capacity, which is important for assessing cardiovascular fitness and prognosis.

4. Using the Calculator

Tips: Enter the total time in minutes achieved during the Modified Bruce protocol test. The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: How does Modified Bruce differ from standard Bruce?
A: The Modified Bruce starts with slower speed and lower incline, making it more gradual and suitable for less fit individuals.

Q2: What are normal METs values?
A: Healthy individuals typically achieve 10+ METs. Values below 5 METs indicate poor functional capacity.

Q3: When is Modified Bruce preferred?
A: For elderly patients, those with limited exercise capacity, or when evaluating patients with known cardiovascular disease.

Q4: Are there limitations to this equation?
A: The equation provides an estimate. Actual energy expenditure may vary based on individual factors like body composition.

Q5: Can this be used for exercise prescription?
A: Yes, METs values can help guide appropriate exercise intensity for cardiac rehabilitation programs.