What type of training involves alternating periods of high and low intensity?

Interval training is characterized by alternating periods of high intensity followed by periods of low intensity or rest. This method is particularly effective for improving cardiovascular fitness, burning calories, and enhancing both aerobic and anaerobic capacity. During high-intensity segments, the body is pushed to work harder, which can increase heart rate and promote greater adaptations in fitness levels. The subsequent low-intensity periods allow for recovery, making it possible to perform at a higher intensity during the work segments. This intermittent approach to training not only improves performance but also keeps workouts engaging and varied.

Steady-state training, in contrast, involves maintaining a consistent, moderate intensity throughout the workout without fluctuations. Circuit training typically consists of a series of exercises performed in succession with minimal rest, focusing more on strength and endurance rather than alternating intensities. Dynamic stretching is a warm-up technique involving movement-based stretches designed to increase flexibility and prepare the muscles for activity; it does not incorporate the concept of alternating intensity levels. This makes interval training the distinctive choice when discussing the alternating periods of high and low intensity.