A track athlete experiences a sharp burning sensation and fatigue in their quadriceps during a 400m sprint. Which metabolic byproduct is accumulating?
Q1. A track athlete experiences a sharp burning sensation and fatigue in their quadriceps during a 400m sprint. Which metabolic byproduct is accumulating?
Answer: Lactic acid
Explanation: Lactic acid forms during anaerobic conditions in skeletal muscles; Pyruvate is the precursor but its accumulation does not cause immediate muscle soreness.