The primary goal of HIIT (High-Intensity Interval Training) exercises is to increase heart rate by at least 75% for short bursts of time, followed by periods of lower-intensity activity or rest. This method aims to improve cardiovascular fitness, increase metabolism, and enhance endurance in a shorter duration compared to steady-state exercises. Therefore, the correct answer would be:
to increase heart rate by at least 75% for 10 minutes.
1 answer