Final answer:
Different training intensities are associated with the risk for a sudden adverse cardiac event due to the increased demand on the cardiovascular system. It is important to monitor heart rate during exercise and stay within the recommended target heart rate range to maintain cardiovascular health.
Step-by-step explanation:
The risk for a sudden adverse cardiac event can be associated with different training intensities. Intense physical activity, such as anaerobic exercise, can increase the risk for adverse cardiac events due to the higher heart rate and the increased demand on the cardiovascular system. When the heart rate is too high and the ventricles have less time to fill with blood, the stroke volume decreases and eventually the cardiac output may decrease as well. It is important to monitor heart rate during exercise and stay within the recommended target heart rate range to maintain cardiovascular health.