Question

find rate of breathing during rest and exercise practically for activity​

Answer 1

Answer:

Multiply the number of beats by 4 to get the heart rate (beats per minute). Record this in the table below. c Measure the exerciser's breathing rate at rest for 15 seconds. Multiply the number of breaths by 4 to get the breathing rate (breaths per minute).

Explanation:

pulse rate and breathing rate changes over time when various activities are carried out. If the heart beats more times per minute, we also take more breaths. This is because the heart pumps the oxygen into the body and when it pumps more oxygen we also need to breathe in more oxygen.