Question

Rahul was doing exercise in the gym.Before exercise he was having aerobic respiration.After vigorous exercise he is having pain in his legs.Which type of respiration is taking place and why does it happens?

Answer 1

This is anaerobic respiration.

This happens when the body is deprived of oxygen. Since he is exercising, his body requires more oxygen. Since only a certain amount can be taken in at once, his muscle cells start to respire anaerobically. This causes the accumulation of lactic acid, which thus causes cramping.