What is one benefit of interval training?

Interval training is a highly effective form of exercise where short, high-intensity bursts of activity are alternated with periods of rest or lower-intensity exercise. One significant benefit of this type of training is its capacity to improve cardiovascular fitness and metabolism.

When engaging in interval training, the heart rate is elevated during the high-intensity segments, which strengthens the heart muscle and leads to improved cardiovascular efficiency over time. This enhanced efficiency allows the heart to pump blood more effectively, improving overall cardiovascular health. Additionally, the metabolic boost achieved through high-intensity intervals can lead to increased calorie burn during and after workouts, often referred to as the "afterburn" effect. This occurs due to the elevated oxygen consumption required to return the body to its resting state after vigorous activity, thereby enhancing metabolic rate.

In contrast, options that imply reduced flexibility or solely lower blood pressure do not adequately capture the comprehensive benefits of interval training, which predominantly revolves around its impact on cardiovascular health and metabolic function. While increased muscle mass can occur with consistent strength training, it is typically not solely the result of interval training, making it a less direct benefit of this specific exercise method.