Interval training is a type of physical training that involves a series of low to high intensity exercises followed by rest or relief periods. The high-intensity periods are typically at or close to anaerobic exercise, while the recovery periods involve activity of lower intensity. Interval training is an appropriate method of training for individuals with a goal of increasing cardiac function, strength, coordination and overall health.
Interval training can increase a person’s maximum aerobic capacity (how well the body uses oxygen for energy) at their greatest heart rate higher than those who participate in a continuous exercise program. Examples of a continuous exercise program can include more than a 20-minute run, bike, or swim at a steady to moderate pace. The more oxygen your body can efficiently use to generate energy, the stronger and faster you become. As your body adapts to the stress of interval training, your fitness level improves along with your muscle function.