Answer:
A workout is considered high-intensity if it is performed at a level that challenges the body beyond its normal capacity. This means the exercise should push the individual to their limits and require maximum effort. High-intensity workouts typically involve short bursts of high-intensity activity followed by a brief rest period, allowing for recovery before starting the next set. These workouts often increase the heart rate significantly, requiring the body to consume large amounts of oxygen to meet the increased demand. They can also be structured to target specific muscle groups, increasing strength and endurance over time.
Step-by-step explanation: