Yesterday, when Eric returned home from jogging, he was breathing heavily, sweating profusely, and complained that his legs ached and felt weak. He took a drink of Gatorade and took it easy until he could "catch his breath".
He's come to clinic today to ask you the following questions to explain what happened to him:
A. Why was he breathing heavily (hint--mention what ATP harvesting pathway his working muscles had been using that lead to such heavy breathing)
B. Why were his muscles so sore and feeling weak (hint- mention what metabolic product(s) could account for this).