FTCE Physical Education K-12 Practice Test

What is the formula for calculating the target heart rate zone?

1. THR = (220 - AGE) x 0.50 to (220 - AGE) x 0.75

2. THR = (220 - AGE) x 0.60 to (220 - AGE) x 0.80

3. THR = (180 - AGE) x 0.60 to (180 - AGE) x 0.85

4. THR = (200 - AGE) x 0.70 to (200 - AGE) x 0.90

The correct answer is: THR = (220 - AGE) x 0.60 to (220 - AGE) x 0.80

The target heart rate zone is important for individuals engaging in cardiovascular fitness activities, as it helps ensure that they are training at an intensity that is effective for improving cardiovascular health and overall fitness. The formula that specifies the target heart rate (THR) is based on a person's age and is typically calculated using a percentage of the maximum heart rate. The correct formula for calculating the target heart rate zone is based on the maximal heart rate, which is traditionally found using the formula 220 minus the individual’s age. By taking 60% to 80% of this maximum heart rate, one can determine the appropriate heart rate range for effective aerobic exercise. Using the formula that involves 220 - AGE multiplied by the percentages of 0.60 to 0.80 aligns with established guidelines for cardiovascular exercise, emphasizing a safe but effective intensity level to achieve health benefits. This zone promotes improved cardiovascular efficiency and endurance without straining the heart excessively. The other formulas presented either use incorrect multipliers or base calculations on an incorrect maximum heart rate estimate, which would not be suitable for helping individuals engage in a safe and effective exercise regimen. Hence, choosing the correct percentages ensures that individuals can train within the optimal heart rate zone for their age, making option B the appropriate