A sprinter feels cramps and pain in the thigh muscles after a run. This is due to accumulation of
[amp_mcq option1=”lactic acid” option2=”CO₂” option3=”pyruvic acid” option4=”ethanol” correct=”option1″]
This question was previously asked in
UPSC CDS-1 – 2023
During strenuous exercise when oxygen supply to muscle cells is limited, muscles switch to anaerobic respiration. This process breaks down glucose to produce energy (ATP) and lactic acid as a byproduct. The buildup of lactic acid lowers the pH in muscle cells, contributing to fatigue, pain, and muscle cramps.