Radha was running on a treadmill at a great speed for 15 minutes continuously. She stopped the treadmill and abruptly came out. For the next few minutes, she was breathing heavily/fast. Answer the following questions.
a. What happened to her muscles when she did strenuously exercise?
b. How did her breathing rate change?
a. Her muscles got fatigued as the accumulation of lactic acid in the muscles occurred due to the lack of oxygen during the exercise.
b. Breathing rate changed because the body demands more oxygen during strenuous exercise for more ATP (i.e., Energy) production