High-intensity interval training explained

High-intensity interval training (HIIT) involves short bursts of near-maximum effort exercise followed by brief recovery periods. This method is designed to maximize explosive performance and speed. True HIIT workouts typically feature very short work intervals, around 20 seconds, with significantly longer recovery periods, often a 2:1 or 3:1 ratio of rest to work. This approach relies on anaerobic energy pathways. HIIT can improve cardiovascular function, VO2 max, and insulin sensitivity, and may contribute to calorie burning. It's often recommended for athletes and those seeking efficient, intense workouts, but proper form and warm-ups are crucial to prevent injury.