Question

2. In which type of exercise our breath rate increase.
(a) vigorous exercise
(b) light exercise
c) Moderate exercise
(d) All of those​

Answer 1

Answer:

The right answer is (d) All of those.

Explanation:

During exercise, two of the important organs of the body come into action:

• Lungs:- Lungs bring oxygen into the body, to provide energy, and remove carbon dioxide, the waste product created when you produce energy.
• Heart:- Heart pumps the oxygen to the muscles that are doing the exercise.

When you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide.

To balance this extra demand, your breathing has to increase from about 15 times a minute when you are resting, up to about 40–60 times a minute during exercise (depends upon the mode of exercise).

Your circulation also speeds up to take the oxygen to the muscles so that they can keep moving.

When your lungs are healthy, you keep a large breathing reserve. You may feel ‘out of breath’ after exercise, but you will not be ‘short of breath’.