Which formula calculates the Target Heart Rate Zone based on resting heart rate?

The Karvonen Formula is the appropriate method for calculating the Target Heart Rate Zone based on resting heart rate. This formula takes into account an individual's resting heart rate, which provides a more personalized approach to determine the target heart rate for effective exercise.

The formula is expressed as Target Heart Rate = ((Maximum Heart Rate - Resting Heart Rate) × Desired Intensity) + Resting Heart Rate. This ensures that the calculated target heart rate zone reflects the individual's unique cardiovascular fitness level, making workouts more effective and tailored for improving fitness.

The other options listed do not incorporate resting heart rate in their calculations. The Age Predicted Max Heart Rate is based solely on age and does not consider resting heart rate, while Pulse Recovery Rate assesses heart rate recovery after exercise rather than defining a target zone for training. Intensity Ratio Calculation similarly does not focus on resting heart rate and is more about assessing exercise intensity relative to performance metrics. Therefore, the Karvonen Formula is specifically designed to integrate resting heart rate into the equation for determining the target zone, making it the most suitable choice.