Question

After running 300 m at normal speed heart beat

Answer 1

Answer:

Heartbeat increases when we do excercise

it will beat faster

Answer 2

After running 300 m at normal speed heartbeat increase three times more than normal because when we are exercising, our muscles require additional oxygen—some three times as much as resting muscles. This necessity suggests that our heart begins pumping rapidly, which creates a quicker pulse.

• Running enhances the walls of the heart, which improves its all-around efficiency. Jogging minimizes our heart's workload. Because runners possess powerful hearts, they generally possess a softer resting pulse rate and intake a higher percentage of oxygen.
• More than 200 beats per minute heart rate during exercise is dangerous for a person. If develop beatings, an abnormal heart rate, briefness of breath, or chest discomfort, the person wants to pursue medical assistance right away. This could be an indication of an upcoming heart attack or other life-threatening heart difficulties.

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