Theo teams up with Hassler to track the escaped Abbie leader, Xander confronts Rebecca about her condition, and Jason learns devastating news about Kerry. Theo and Megan disagree over the Abbiesâ intelligence, as the doctor attempts to communicate with their leader.
Why does heart rate and breathing rate increase during exercise. 1. When you exercise your muscles contract more frequently, which means they use more energy. 2.To replace this energy your body needs to do more aerobic respiration, so it needs to take in more oxygen and breathe out more CO2. 3.hy does heart rate and breathing rate increase during exercise. 1. When you exercise your muscles contract more frequently, which means they use more energy. 2.
SHARE SHARE TWEET EMAIL. In order to perform physical activity, your muscles require oxygenated blood to circulate at an increased rate. The more oxygen your body needs to perform the exercise, the higher your breathing and heart rate will be.Although you haven't begun to tax your muscles before exercise, your breathing rate will speed up to prepare your body for the increased cardiovascular expenditure.unction. Since your body needs oxygen as a constant energy source during exercise, the anticipatory response that elevates your breathing and heart rate before exercise allows you to make the transition from inactivity to high energy output more easily.