What does the acronym HIIT stand for?

The acronym HIIT stands for High-Intensity Interval Training. This training method is characterized by alternating periods of intense exercise with periods of rest or lower-intensity exercise. HIIT workouts are designed to maximize calorie burn and improve cardiovascular fitness in a shorter amount of time compared to traditional steady-state workouts. The combination of high-intensity bursts followed by recovery allows participants to push their limits and achieve significant fitness gains efficiently.

In the context of fitness and exercise programming, HIIT is widely recognized for its effectiveness, making it a popular choice in various workout regimes, including those at Orangetheory Fitness. The other options do not accurately represent the concept of HIIT within the fitness community, as they refer to non-standard or unrelated terms that do not describe a recognized training methodology.