Interval training is a type of physical training that involves bursts of high intensity work. This high intensity work is alternated with periods of rest or low activity, the eponymous intervals.
The term can refer to any cardiovascular workout (cycling, running, rowing, etc.) that involves brief bouts at near-maximum intensity interspersed with periods of lower-intensity activity.
Interval training is often practiced by long distance runners (800 meters and above). Sprinters and footballers have also been known to use this type of training.
Distance runners often practice interval training on tracks, running hard at a certain pace for a specified distance (or, less often, time) and jogging, walking, or resting for a set distance or time before the next speed burst. Distances can also vary; one example would be a "ladder" workout consisting of a 1600-meter, two 1200-meter, three 800-meter, and four 400-meter repetitions, each at an appropriate speed and with an appropriate amount of recovery.
Interval training is a favorite of coaches because of its effectiveness in cardiovascular build-up and also its ability to make more well-rounded runners / riders. However, it is also applicable to exercisers as it helps improve exercisers’ aerobic capacity to exercise longer at varying intensities (Mayo Clinic, 2009).
This method of training may be more effective at inducing fat loss than simply training at a moderate intensity level for the same duration
