The correct answer would be, Cool-down is an essential and pleasant portion of a cardio respiratory workout.
Explanation:
There are two main types of exercises that are being done in a gym. Some are those related to Cardiovascular/cardiorespiratory activities and the others are related to the strength training or muscle strength.
Cardiovascular activities are those related to the heart and lungs. With the increase in the intensity of such exercises, the heart rate also increases which help in burning the fat inside the body after a certain level.
After doing the cardiovascular or cardiorespiratory exercises like doing treadmill, riding a bike or an elliptical, etc, the exercises need a cool down period. This cool down period consists of almost 2 to 5 mins of very light movement on the same equipment. This is the very soothing and relaxing part of the cardiorespiratory workouts.
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