What value would represent the age-adjusted maximum heart rate for a 56-year-old male?

To determine the age-adjusted maximum heart rate, a common formula used is 220 minus the person's age. For a 56-year-old male, this calculation would go as follows:

1. Start with 220.

2. Subtract the age of the individual: 220 - 56 = 164.

Thus, the age-adjusted maximum heart rate for a 56-year-old male would be 164 beats per minute. This value is significant as it aids in setting an appropriate intensity level for aerobic exercise and monitoring heart rate during physical activity for safety and effectiveness. The other options represent calculations based on incorrect arithmetic or different formulas that do not align with the standard approach for calculating maximum heart rate based on age.