What is the main benefit of interval training?

The main benefit of interval training is its ability to improve cardiovascular fitness and enhance calorie burn in a shorter time frame. Interval training involves alternating periods of high-intensity effort with periods of lower-intensity recovery, which makes for a more efficient workout. This approach elevates the heart rate, encouraging the body to work harder in less time, which can lead to significant cardiovascular improvements.

Additionally, the high-intensity bursts during interval sessions can increase the overall calorie expenditure during and even after the workout due to the afterburn effect, known as excess post-exercise oxygen consumption (EPOC). This means that interval training not only helps in burning more calories during the session but also contributes to continued calorie burn after the workout is completed.

In contrast, focusing solely on weight loss does not encompass the broader cardiovascular benefits that interval training provides. Likewise, while interval training may have some secondary benefits related to flexibility and muscle size, these are not its main advantages.