All the points is needed for reliable information but i think the better answer of all is qno.2 which is have good communication and refusal skills.
Thank you..
Answer:
The correct answer will be option-B
Explanation:
Karvonen is known for his work on coronary heart disease and epidemiology and giving the formula for calculating the target heart rate zone during the training called 220-age formula.
The formula is based on the age and resting heart rate of the trainer. To measure the heart rate first the resting heart rate of a person is measured every fifteen-minute.
Then find age-predicted maximum heart rate by subtracting the age of the person from 220.
The heart rate reserve is calculated then by subtracting the resting heart rate from the maximal heart rate.
Thus, Option-B is the correct answer.
Because the lungs gradually, with the time, they lose their elasticity.
