What are the benefits of high-intensity interval training (HIIT)?

High-intensity interval training (HIIT) is a highly effective workout strategy that provides multiple advantages, which are clearly outlined in the correct choice. One of the primary benefits of HIIT is its ability to burn a significant number of calories in a shorter amount of time compared to traditional steady-state cardio. This is due to the nature of the intervals, which involve alternating between periods of intense effort and short recovery, leading to an elevated heart rate that promotes calorie expenditure.

Additionally, HIIT improves cardiovascular fitness by challenging the heart and lungs through intense bursts of activity. This type of training pushes individuals into higher heart rate zones, which can enhance overall aerobic and anaerobic capacity. Furthermore, HIIT can lead to an increased metabolic rate even after the workout has concluded, a phenomenon known as excess post-exercise oxygen consumption (EPOC). This means that the body continues to burn calories at an elevated rate as it recovers from the intense exertion.

In contrast, other options do not accurately represent the comprehensive benefits that HIIT offers. For example, stating that HIIT only improves muscular strength overlooks its cardiovascular and metabolic benefits, while comparing HIIT unfavorably to steady-state cardio misses the unique advantages it provides in terms of time efficiency and post-ex