What type of training alternates between high intensity and rest periods?

Interval training is characterized by alternating periods of high-intensity exercise with rest or low-intensity activities. This method allows individuals to push their bodies to work harder during the intense phases and then recover during the rest periods. This training approach can enhance both aerobic and anaerobic fitness, improve performance, and increase calorie expenditure in a shorter time compared to steady-state workouts.

Steady-state training involves maintaining a consistent level of exertion, typically done at a moderate pace without fluctuations in intensity. Aerobic training focuses primarily on enhancing cardiovascular fitness through exercises like running or cycling at a consistent pace, without the alternating intensity of interval training. Resistance training primarily involves lifting weights to build strength and does not typically incorporate high-intensity and rest alternations in the way interval training does.