Target heart rate is best described as which of the following?

• A. The maximum heart rate achieved during all-out effort.
• B. The rate at which the cardiovascular system receives the most benefits from exercise without overtraining.
• C. The resting heart rate when at rest.
• D. The heart rate during sleep.

Answer: (B)

Target heart rate describes the training intensity zone where you get the most cardiovascular benefits from exercise without risking overtraining. It represents a level of effort that is challenging enough to stimulate adaptations but sustainable for a workout session. This is different from the maximum heart rate you reach during all-out effort, the resting heart rate when you’re at rest, or the heart rate you have during sleep. In practice, you estimate your maximum heart rate and train within a chosen percentage range (often around 50–85% of max, or using heart rate reserve) to match your fitness goals and safety needs.