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.
Note that this increase in ventilation does nothing useful. Instead, it signals that the end of the exercise session is close at hand (see also Metaboreflex. Ventilation does not increase instantaneously, but instead increases quickly and smoothly, with a time constant of about 1 minute (Edwards et. al. 1972), as shown below.