What is interval training designed to improve?

Interval training is specifically designed to enhance both aerobic and anaerobic fitness by alternating between periods of intense effort and lower-intensity recovery. This training method optimizes the body's ability to utilize oxygen (aerobic) while also developing the capacity to perform at high intensities for short bursts, which relies heavily on anaerobic energy systems.

During the high-intensity intervals, the body taps into anaerobic metabolism, using energy sources that do not require oxygen, which helps improve power and speed. Conversely, the recovery phases allow the body to utilize aerobic metabolism, promoting cardiovascular endurance and the efficiency of the lungs and heart.

By combining these two forms of training within the same workout, interval training provides a comprehensive approach to fitness that supports improvements in endurance, cardiovascular health, and increases in muscular strength, making it an effective regimen for athletes and fitness enthusiasts alike.