Question

If you suddenly run a lot, you experience cramps in the leg muscles. Can you think of the reason behind it?

• A. Aerobic respiration performed, creates sugar alcohols in the muscles which causes the cramps
• B. Anaerobic respiration performed, creates lactic acid in the muscles which causes the cramps
• C. Sudden running results into tearing of ligaments in the muscles which causes the cramps
• D. Sudden running breaks some of the bones which causes the cramps

Answer 1

The correct option is B

Anaerobic respiration performed, creates lactic acid in the muscles which causes the cramps

Anaerobic respiration in muscles produces the byproduct lactic acid. This lactic acid builds up in the muscles and interferes with its working temporarily. This is the feeling of cramps and soreness you get immediately after a strenuous outburst of physical activity.